Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

gaia/apps/camera/test/unit/.jshintrc

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+{
+  "extends": "../../../../.jshintrc",
+  "predef": [
+    "assert",
+    "suite",
+    "test",
+    "setup",
+    "teardown",
+    "suiteSetup",
+    "suiteTeardown",
+    "require",
+    "requireApp",
+    "requirejs",
+    "sinon",
+    "mocha",
+    "loadBodyHTML"
+  ]
+}

gaia/apps/camera/test/unit/app_test.js

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+/*jshint maxlen:false*/
+
+suite('app', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'lib/camera/camera',
+      'view',
+      'lib/geo-location',
+      'lib/orientation',
+      'lib/setting',
+      'lib/pinch'
+    ], function(App, Camera, View, GeoLocation, orientation, Setting, Pinch) {
+      self.App = App;
+      self.View = View;
+      self.Camera = Camera;
+      self.Geolocation = GeoLocation;
+      self.orientation = orientation;
+      self.Setting = Setting;
+      self.Pinch = Pinch;
+      done();
+    });
+  });
+
+  var mocks = {
+    doc: function() {
+      return {
+        addEventListener: sinon.spy(),
+        hidden: false
+      };
+    },
+    win: function() {
+      return {
+        addEventListener: sinon.spy(),
+        dispatchEvent: sinon.stub(),
+        location: {
+          hash: ''
+        }
+      };
+    }
+  };
+
+  setup(function() {
+    var self = this;
+
+    if (!navigator.mozCameras) {
+      navigator.mozCameras = {
+        getListOfCameras: function() { return []; },
+        getCamera: function() {},
+        release: function() {}
+      };
+    }
+
+    navigator.mozSettings = {
+      addObserver: function() {},
+      removeObserver: function() {}
+    };
+
+    var options = this.options = {
+      doc: mocks.doc(),
+      win: mocks.win(),
+      el: document.createElement('div'),
+      geolocation: sinon.createStubInstance(this.Geolocation),
+      orientation: this.orientation,
+      pinch: sinon.createStubInstance(this.Pinch),
+      activity: {},
+      camera: sinon.createStubInstance(this.Camera),
+      require: sinon.stub(),
+      settings: {
+        geolocation: sinon.createStubInstance(this.Setting),
+        spinnerTimeouts: sinon.createStubInstance(this.Setting),
+        keyDownEvents: sinon.createStubInstance(this.Setting),
+        countdown: sinon.createStubInstance(this.Setting)
+      },
+      views: {},
+      controllers: {
+        battery: sinon.spy(),
+        overlay: sinon.spy(),
+        hud: sinon.spy(),
+        countdown: sinon.spy(),
+        controls: sinon.spy(),
+        viewfinder: sinon.spy(),
+        camera: sinon.spy(),
+        settings: sinon.spy(),
+        activity: sinon.spy(),
+        storage: sinon.spy(),
+
+        // Lazy loaded
+        lazy: [
+          'controllers/preview-gallery',
+          'controllers/confirm',
+          'controllers/sounds'
+        ]
+      }
+    };
+
+    this.loadingView = sinon.createStubInstance(this.View);
+    this.loadingView.appendTo.returns(this.loadingView);
+    options.LoadingView = function() { return self.loadingView; };
+
+    // Sandbox to put all our stubs in
+    this.sandbox = sinon.sandbox.create();
+
+    // Sinon take over setTimeout
+    this.clock = sinon.useFakeTimers();
+
+    // Stub out all methods
+    this.sandbox.stub(options.activity);
+    this.sandbox.stub(options.focusRing);
+    this.sandbox.stub(options.hud);
+
+    // Sometimes we have to spy on the prototype,
+    // this is because methods get bound and passed
+    // directly as callbacks. We set spys on prototype
+    // methods before any of this happens, so that the
+    // spy is always at the root of any call.
+    this.sandbox.spy(this.App.prototype, 'boot');
+    this.sandbox.spy(this.App.prototype, 'showSpinner');
+    this.sandbox.spy(this.App.prototype, 'clearSpinner');
+
+    // Aliases
+    this.settings = options.settings;
+    this.pinch = options.pinch;
+
+    // Create the app
+    this.app = new this.App(options);
+
+    this.sandbox.spy(this.app, 'on');
+    this.sandbox.spy(this.app, 'set');
+    this.sandbox.spy(this.app, 'once');
+    this.sandbox.spy(this.app, 'emit');
+    this.sandbox.spy(this.app, 'firer');
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+    this.clock.restore();
+    delete navigator.mozCameras;
+  });
+
+  suite('App()', function() {
+    test('Should store the injected dependencies on the instance', function() {
+      var options = this.options;
+      var app = this.app;
+
+      assert.ok(app.el === options.el);
+      assert.ok(app.inSecureMode === false);
+      assert.ok(app.geolocation === options.geolocation);
+      assert.ok(app.camera === options.camera);
+      assert.ok(app.storage === options.storage);
+      assert.ok(app.settings === options.settings);
+      assert.ok(app.sounds === options.sounds);
+      assert.ok(app.controllers === options.controllers);
+    });
+
+    test('Should detect secure mode', function() {
+      var options = this.options;
+      options.win.location.hash = '#secure';
+
+      // need to `new App()` again here (and disregard `this.app`)
+      // because we have changed the option mock.
+      var app = new this.App(options);
+
+      assert.ok(app.inSecureMode === true);
+    });
+  });
+
+  suite('App#boot()', function() {
+    setup(function() {
+      this.app.boot();
+    });
+
+    test('Should run each of the controllers,' +
+         'passing itself as first argument', function() {
+      var controllers = this.app.controllers;
+      var app = this.app;
+
+      assert.ok(controllers.overlay.calledWith(app));
+      assert.ok(controllers.battery.calledWith(app));
+      assert.ok(controllers.hud.calledWith(app));
+      assert.ok(controllers.controls.calledWith(app));
+      assert.ok(controllers.viewfinder.calledWith(app));
+      assert.ok(controllers.camera.calledWith(app));
+    });
+
+    test('Should bind to `visibilitychange` event', function() {
+      var call = this.app.doc.addEventListener.getCall(0);
+      assert.ok(call.args[0] === 'visibilitychange');
+      assert.ok(typeof call.args[1] === 'function');
+    });
+
+    test('Should bind to `beforeunload` event', function() {
+      var addEventListener = this.app.win.addEventListener;
+      assert.ok(addEventListener.calledWith('beforeunload', this.app.onBeforeUnload));
+    });
+
+    test('Should run the activity controller before controls or camera', function() {
+      var activity = this.app.controllers.activity;
+      var controls = this.app.controllers.controls;
+      var camera = this.app.controllers.camera;
+
+      assert.isTrue(activity.calledBefore(controls));
+      assert.isTrue(activity.calledBefore(camera));
+    });
+
+    test('Should watch location only once storage confirmed healthy', function() {
+      var geolocationWatch = this.app.geolocationWatch;
+      assert.ok(this.app.once.calledWith('storage:checked:healthy', geolocationWatch));
+    });
+
+    test('Should clear loading screen when camera is ready', function() {
+      var on = this.app.on.withArgs('ready');
+      var callback = on.args[0][1];
+
+      // Call the callback and make sure
+      // that `clearSpinner` was called.
+      callback();
+      sinon.assert.calledOnce(this.App.prototype.clearSpinner);
+    });
+
+    test('It calls `showSpinner`', function() {
+      sinon.assert.calledWith(this.App.prototype.showSpinner, 'requestingCamera');
+    });
+
+    suite('pinch', function() {
+      test('It listens to the pinch `changed` event', function() {
+        sinon.assert.called(this.pinch.on, 'changed');
+      });
+
+      test('It disables pinch while the preview-gallery is open', function() {
+        sinon.assert.called(this.app.on, 'previewgallery:opened', this.pinch.disable);
+        sinon.assert.called(this.app.on, 'previewgallery:closed', this.pinch.enable);
+      });
+
+      test('It disables pinch while settings is open', function() {
+        sinon.assert.called(this.app.on, 'settings:opened', this.pinch.disable);
+        sinon.assert.called(this.app.on, 'settings:closed', this.pinch.enable);
+      });
+    });
+
+    suite('App#geolocationWatch()', function() {
+      test('Should *not* watch location if in activity', function() {
+        this.app.hidden = false;
+        this.app.activity.pick = true;
+
+        this.app.geolocationWatch();
+        this.clock.tick(2000);
+
+        assert.isFalse(this.app.geolocation.watch.called);
+      });
+
+      test('Should *not* watch location if app hidden', function() {
+        this.app.hidden = true;
+        this.app.activity.pick = false;
+
+        this.app.geolocationWatch();
+        this.clock.tick(2000);
+
+        assert.isFalse(this.app.geolocation.watch.called);
+      });
+    });
+
+    suite('once(\'viewfinder:visible\')', function() {
+      setup(function() {
+
+        // Stop annoying logs
+        this.sandbox.stub(console, 'log');
+
+        this.spy = this.app.once.withArgs('viewfinder:visible');
+        this.callback = this.spy.args[0][1];
+
+        sinon.spy(this.app, 'loadLazyControllers');
+        sinon.stub(this.app, 'clearSpinner');
+
+        // Call the callback to test
+        this.callback();
+      });
+
+      test('Should fire a `criticalpathdone` event', function() {
+        assert.isTrue(this.app.emit.calledWith('criticalpathdone'));
+      });
+
+      test('Should flag `this.criticalPathDone`', function() {
+        assert.isTrue(this.app.criticalPathDone);
+      });
+
+      test('Should load non-critical controllers', function() {
+        sinon.assert.called(this.app.loadLazyControllers);
+      });
+    });
+  });
+
+  suite('App#bindEvents()', function() {
+    setup(function() {
+      this.app.firer.restore();
+
+      sinon.stub(this.app, 'firer');
+
+      this.app.firer
+        .withArgs('busy')
+        .returns('<busy-firer>');
+
+      this.app.firer
+        .withArgs('localized')
+        .returns('<localized-firer>');
+
+      this.sandbox.stub(this.app, 'onCountdown');
+      this.options.settings.countdown.selected.returns('off');
+    });
+
+    suite('default', function() {
+      setup(function() {
+        this.app.bindEvents();
+      });
+
+      test('Should listen for visibilitychange on document', function() {
+        sinon.assert.calledWith(this.app.doc.addEventListener, 'visibilitychange');
+      });
+
+      test('Should relay window \'localized\' event', function() {
+        sinon.assert.calledWith(this.app.doc.addEventListener, 'DOMRetranslated', '<localized-firer>');
+      });
+
+      test('It indicates the app is \'busy\' when the camera \'willchange\'', function() {
+        sinon.assert.calledWith(this.app.on, 'camera:willchange', '<busy-firer>');
+      });
+
+      test('Should listen for \'willchange\' to lazy load once', function() {
+        sinon.assert.calledWith(this.app.once, 'camera:willchange', this.app.onWillChange);
+      });
+
+      test('Should listen for \'activity\' to lazy load once', function() {
+        sinon.assert.calledWith(this.app.once, 'activity', this.app.onActivity);
+      });
+
+      test('Should listen for \'preview\' to lazy load once', function() {
+        sinon.assert.calledWith(this.app.once, 'preview', this.app.onPreview);
+      });
+
+      test('Should listen for \'newthumbnail\' to lazy load once', function() {
+        sinon.assert.calledWith(this.app.once, 'newthumbnail', this.app.onNewThumbnail);
+      });
+
+      test('Should listen for change:selected on countdown if disabled', function() {
+        sinon.assert.calledWith(this.options.settings.countdown.once, 'change:selected', this.app.onCountdown);
+      });
+    });
+
+    test('Should listen for change:selected on countdown if disabled', function() {
+      this.options.settings.countdown.selected.returns('2sec');
+      this.app.bindEvents();
+      sinon.assert.called(this.app.onCountdown);
+    });
+  });
+
+  suite('App#onVisibilityChange', function() {
+    test('Should update the `app.hidden` property', function() {
+      this.app.doc.hidden = true;
+      this.app.onVisibilityChange();
+      assert.equal(this.app.hidden, true);
+
+      this.app.doc.hidden = false;
+      this.app.onVisibilityChange();
+      assert.equal(this.app.hidden, false);
+    });
+
+    test('Should emit a \'visible\' event when the document is not hidden', function() {
+      this.app.doc.hidden = false;
+      this.app.onVisibilityChange();
+      assert.isTrue(this.app.emit.calledWith('visible'));
+    });
+
+    test('Should emit a \'hidden\' event when the document is hidden', function() {
+      this.app.doc.hidden = true;
+      this.app.onVisibilityChange();
+      assert.isTrue(this.app.emit.calledWith('hidden'));
+    });
+  });
+
+  suite('App#onHidden', function() {
+    setup(function() {
+      this.app.onHidden();
+    });
+
+    test('Should stop watching location', function() {
+      assert.ok(this.app.geolocation.stopWatching.called);
+    });
+  });
+
+  suite('App#onVisible()', function() {
+    setup(function() {
+      sinon.spy(this.app, 'geolocationWatch');
+      this.sandbox.spy(this.app.orientation, 'lock');
+      this.app.onVisible();
+    });
+
+    test('Should begin watching location again', function() {
+      sinon.assert.called(this.app.geolocationWatch);
+    });
+
+    test('It locks the orientation to portrait', function() {
+      sinon.assert.called(this.app.orientation.lock);
+    });
+  });
+
+  suite('App#onBusy()', function() {
+    setup(function() {
+      this.app.settings.spinnerTimeouts.get
+        .withArgs('takingPicture')
+        .returns(1500);
+
+      this.app.settings.spinnerTimeouts.get
+        .withArgs('requestingCamera')
+        .returns(600);
+
+      sinon.stub(this.app, 'showSpinner');
+    });
+
+    test('It calls showSpinner with type if busy type recongnised', function() {
+      this.app.onBusy('takingPicture');
+      sinon.assert.calledWith(this.app.showSpinner, 'takingPicture');
+      this.app.showSpinner.reset();
+
+      this.app.onBusy('requestingCamera');
+      sinon.assert.calledWith(this.app.showSpinner, 'requestingCamera');
+      this.app.showSpinner.reset();
+    });
+
+    test('Should not show loading screen if busy type not recongnised', function() {
+      this.app.onBusy('unknownType');
+      sinon.assert.notCalled(this.app.showSpinner);
+    });
+  });
+
+  suite('App#showSpinner()', function() {
+    setup(function() {
+      this.sandbox.spy(window, 'clearTimeout');
+
+      this.app.settings.spinnerTimeouts.get
+        .withArgs('takingPicture')
+        .returns(1500);
+
+      this.app.settings.spinnerTimeouts.get
+        .withArgs('requestingCamera')
+        .returns(600);
+
+    });
+
+    test('Should append a loading view to the app element and show', function() {
+      this.app.showSpinner('takingPicture');
+      this.clock.tick(1500);
+      sinon.assert.calledWith(this.app.views.loading.appendTo, this.app.el);
+      sinon.assert.called(this.app.views.loading.show);
+    });
+
+    test('Should clear any existing timeouts', function() {
+      this.sandbox.stub(window, 'setTimeout').returns('<timeout-id>');
+      this.app.showSpinner('requestingCamera');
+      this.app.showSpinner('requestingCamera');
+      sinon.assert.calledWith(window.clearTimeout, '<timeout-id>');
+    });
+
+    test('It should not require a type', function() {
+      this.app.showSpinner();
+      this.clock.tick(1);
+      sinon.assert.calledWith(this.app.views.loading.appendTo, this.app.el);
+    });
+  });
+
+  suite('App#clearSpinner()', function() {
+    setup(function() {
+      this.sandbox.spy(window, 'clearTimeout');
+      this.sandbox.stub(window, 'setTimeout').returns('<timeout-id>');
+      this.app.views.loading = sinon.createStubInstance(this.View);
+      this.app.views.loading.hide.callsArg(0);
+    });
+
+    test('Should clear loadingTimeout', function() {
+      this.app.views.loading = null;
+      this.app.showSpinner();
+      this.app.clearSpinner();
+      sinon.assert.calledWith(window.clearTimeout, '<timeout-id>');
+    });
+
+    test('Should hide, then destroy the view', function() {
+      var view = this.app.views.loading;
+      this.app.clearSpinner();
+
+      sinon.assert.called(view.hide);
+      assert.ok(view.destroy.calledAfter(view.hide));
+    });
+
+    test('Should clear reference to `app.views.loading`', function() {
+      this.app.clearSpinner();
+      assert.equal(this.app.views.loading, null);
+    });
+  });
+
+  suite('App#onActivity', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyController');
+      this.app.onActivity();
+    });
+
+    test('Should lazy load confirm controller', function() {
+      sinon.assert.calledWith(this.app.loadLazyController, 'controllers/confirm');
+    });
+  });
+
+  suite('App#onCountdown', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyController');
+      this.app.onCountdown();
+    });
+
+    test('Should lazy load countdown controller', function() {
+      sinon.assert.calledWith(this.app.loadLazyController, 'controllers/countdown');
+    });
+  });
+
+  suite('App#onWillChange', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyController');
+      this.app.onWillChange();
+    });
+
+    test('Should lazy load recording-timer controller', function() {
+      sinon.assert.calledWith(this.app.loadLazyController, 'controllers/recording-timer');
+    });
+  });
+
+  suite('App#onNewThumbnail', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyController');
+      this.app.onNewThumbnail();
+    });
+
+    test('Should lazy load recording-timer controller', function() {
+      sinon.assert.calledWith(this.app.loadLazyController, 'controllers/preview-gallery');
+    });
+  });
+
+  suite('App#onPreview', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyController').returns({
+        then: sinon.stub().callsArg(0)
+      });
+      this.app.onPreview();
+    });
+
+    test('Should lazy load preview gallery controller', function() {
+      sinon.assert.calledWith(this.app.loadLazyController, 'controllers/preview-gallery');
+    });
+
+    test('Should re-emit `preview`', function() {
+      sinon.assert.calledWith(this.app.emit, 'preview');
+    });
+  });
+
+  suite('App#loadLazyController()', function() {
+    setup(function() {
+      this.sandbox.stub(this.app, 'loadLazyControllers').returns('<promise>');
+      this.app.controllers.lazy = [];
+    });
+
+    test('Should add to lazy load controllers if critical path not reached', function() {
+      var promise = this.app.loadLazyController('<controller>');
+      assert.isTrue(this.app.controllers.lazy[0] === '<controller>');
+      assert.isTrue(promise === undefined);
+    });
+
+    test('Should lazy load immediately if critical path done', function() {
+      this.app.criticalPathDone = true;
+      var promise = this.app.loadLazyController('<controller>');
+      sinon.assert.called(this.app.loadLazyControllers);
+      assert.isTrue(promise === '<promise>');
+      assert.isTrue(this.app.dynamicLazy['<controller>'] === '<promise>');
+    });
+
+    test('Should return existing lazy load promise', function() {
+      this.app.criticalPathDone = true;
+      this.app.dynamicLazy['<controller>'] = '<existing-promise>';
+      var promise = this.app.loadLazyController('<controller>');
+      sinon.assert.notCalled(this.app.loadLazyControllers);
+      assert.isTrue(promise === '<existing-promise>');
+    });
+  });
+
+  suite('App#loadLazyControllers()', function() {
+    setup(function() {
+      this.fakeControllers = [ sinon.spy(), sinon.spy(), sinon.spy() ];
+      this.lazyPromise = this.app.loadLazyControllers(this.app.controllers.lazy);
+      this.callback = this.app.require.withArgs(this.app.controllers.lazy).args[0][1];
+      this.callback.apply(window, this.fakeControllers);
+    });
+
+    test('It requires the lazy controllers', function() {
+      sinon.assert.calledWith(this.app.require, this.app.controllers.lazy);
+    });
+
+    test('It runs each controller, passing in the App instance', function() {
+      var self = this;
+      this.fakeControllers.forEach(function(fakeController) {
+        sinon.assert.calledWith(fakeController, self.app);
+      });
+    });
+
+    test('It emits `lazyloaded`', function() {
+      sinon.assert.calledWith(this.app.emit, 'lazyloaded');
+    });
+
+    test('It fulfills the promise', function(done) {
+      this.lazyPromise.then(done);
+    });
+  });
+
+  suite('after critical path', function() {
+    setup(function() {
+
+      // Stop annoying logs
+      this.sandbox.stub(console, 'log');
+      this.app.boot();
+      this.app.emit('viewfinder:visible');
+    });
+
+    test('It loads lazy controllers', function() {
+      sinon.assert.calledWith(this.app.require, this.app.controllers.lazy);
+    });
+
+    test('It fires the \'loaded\' event only when:', function(done) {
+      var loadLazyControllersRequireCallback = this.app.require.args[0][1];
+
+      // 1. Lazy controllers have loaded
+      loadLazyControllersRequireCallback();
+
+      // 2. Storage has been checked
+      this.app.emit('storage:checked');
+
+      this.app.once('loaded', done);
+    });
+  });
+
+  suite('App#onKeyDown', function() {
+    setup(function() {
+      this.settings.keyDownEvents.get.withArgs('volumedown')
+        .returns('capture');
+      this.settings.keyDownEvents.get.withArgs('volumeup')
+        .returns('capture');
+      this.settings.keyDownEvents.get.withArgs('camera')
+        .returns('capture');
+      this.settings.keyDownEvents.get.withArgs('mozcamerafocusadjust')
+        .returns('focus');
+    });
+
+    test('`volumedown` key emits a `keydown:capture` event', function() {
+      this.app.onKeyDown({ key: 'volumedown' });
+      sinon.assert.calledWith(this.app.emit, 'keydown:capture');
+    });
+
+    test('`volumeup` key emits a `keydown:capture` event', function() {
+      this.app.onKeyDown({ key: 'volumeup' });
+      sinon.assert.calledWith(this.app.emit, 'keydown:capture');
+    });
+
+    test('`camera` key emits a `keydown:capture` event', function() {
+      this.app.onKeyDown({ key: 'camera' });
+      sinon.assert.calledWith(this.app.emit, 'keydown:capture');
+    });
+
+    test('`focus` key emits a `keydown:focus` event', function() {
+      this.app.onKeyDown({ key: 'mozcamerafocusadjust' });
+      sinon.assert.calledWith(this.app.emit, 'keydown:focus');
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/activity_test.js

@@ -0,0 +1,295 @@
+suite('controllers/activity', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/activity',
+      'lib/setting',
+    ], function(App, ActivityController, Setting) {
+      self.ActivityController = ActivityController.ActivityController;
+      self.Setting = Setting;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+
+    this.app = sinon.createStubInstance(this.App);
+    this.app.win = { location: {} };
+    this.app.activity = {};
+    this.app.settings = {
+      mode: sinon.createStubInstance(this.Setting),
+      pictureSizes: sinon.createStubInstance(this.Setting),
+      recorderProfiles: sinon.createStubInstance(this.Setting),
+      activity: sinon.createStubInstance(this.Setting)
+    };
+
+    // Stub `mozSetMessageHandler`
+    navigator.mozSetMessageHandler = navigator.mozSetMessageHandler || function() {};
+    this.sandbox.stub(navigator, 'mozSetMessageHandler');
+
+    // Aliases
+    this.settings = this.app.settings;
+    this.activity = this.app.activity;
+
+    this.controller = new this.ActivityController(this.app);
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('ActivityController#configure()', function() {
+    test('Should should store the activity type on `app.activity`', function() {
+      this.controller.getName = sinon.stub().returns('pick');
+      this.controller.configure();
+      assert.equal(this.app.activity.pick, true);
+    });
+  });
+
+  suite('ActivityController#bindEvents()', function() {
+    setup(function() {
+      sinon.spy(this.controller, 'setupListener');
+    });
+
+    test('It binds a listener straight away if an activity name was found', function() {
+      this.controller.name = 'pick';
+      this.controller.bindEvents();
+      sinon.assert.calledWith(navigator.mozSetMessageHandler, 'activity');
+    });
+
+    test('It binds a listener straight after critical path if no activity name was found', function() {
+      this.controller.name = undefined;
+      this.controller.bindEvents();
+      sinon.assert.calledWith(this.app.once, 'criticalpathdone');
+
+      // Call the callback
+      this.app.once.withArgs('criticalpathdone').args[0][1]();
+      sinon.assert.calledWith(navigator.mozSetMessageHandler, 'activity');
+    });
+  });
+
+  suite('ActivityController#getName()', function() {
+    test('It returns the name after the #', function() {
+      this.app.win.location.hash = '#pick';
+      var name = this.controller.getName();
+      assert.equal(name, 'pick');
+    });
+
+    test('It returns undefined if no hash fragment is present', function() {
+      this.app.win.location.hash = '';
+      var name = this.controller.getName();
+      assert.equal(name, undefined);
+    });
+  });
+
+  suite('Activity#confgureMode()', function() {
+    test('Should get \'picture\' and \'video\' modes for SMS \'pick\' activity', function() {
+      var activity = {
+        'source': {
+          'data': {
+            'type': ['image/*', 'audio/*', 'video/*'],
+            'maxFileSizeBytes': 307200
+          },
+          'name': 'pick'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['picture', 'audio', 'video']);
+    });
+
+    test('Should get \'picture\' and \'video\' modes input[type="file"] \'pick\' activity', function() {
+      var activity = {
+        'source': {
+          'data': {
+            'type': [],
+            'nocrop': true
+          },
+          'name': 'pick'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['picture', 'video']);
+    });
+
+    test('Should get \'picture\' mode for input[type="file"] \'pick\' activity', function() {
+      var activity = {
+        'source': {
+          'data': {
+            'type': ['image/gif', 'image/jpeg', 'image/pjpeg',
+                     'image/png', 'image/svg+xml', 'image/tiff',
+                     'image/vnd.microsoft.icon'],
+            'nocrop': true
+          },
+          'name': 'pick'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['picture']);
+    });
+
+    test('Should be able to cope with String as well as Array', function() {
+      var activity = {
+        source: {
+          data: { type: 'image/jpeg' },
+          name: 'pick'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['picture']);
+    });
+
+    test('Should get [\'picture\', \'video\'] modes for Lockscreen/Gallery \'record\' activity', function() {
+      var activity = {
+        source: {
+          data: { type: 'photos' },
+          name: 'record'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['picture', 'video']);
+    });
+
+    test('Should get [\'video\', \'picture\'] modes for ' +
+      'Video \'record\' activity', function() {
+      var activity = {
+        source: {
+          data: { type: 'videos' },
+          name: 'record'
+        }
+      };
+
+      this.controller.configureMode(activity);
+      var modes = this.settings.mode.filterOptions.args[0][0];
+      assert.deepEqual(modes, ['video', 'picture']);
+    });
+  });
+
+  suite('ActivityController#onMessage()', function() {
+    setup(function() {
+      this.activity = {
+        source: {
+          name: 'pick',
+          data: {
+            type: 'image/jpeg',
+            maxFileSizeBytes: 100
+          },
+        }
+      };
+
+      sinon.spy(this.controller, 'configureMode');
+      sinon.stub(this.controller, 'getMaxPixelSize').returns('<max-pixel-size>');
+      this.controller.onMessage(this.activity);
+    });
+
+    test('Should emit app events', function() {
+      sinon.assert.calledWith(this.app.emit, 'activity');
+      sinon.assert.calledWith(this.app.emit, 'activity:pick');
+    });
+
+    test('Should configure mode', function() {
+      sinon.assert.called(this.controller.configureMode);
+    });
+
+    test('Should keep a reference to the activity', function() {
+      assert.equal(this.controller.activity, this.activity);
+    });
+
+    test('Should pass `data.maxFileSizeBytes`', function() {
+      var data = this.app.emit.withArgs('activity:pick').args[0][1];
+      assert.equal(data.maxFileSizeBytes, 100);
+    });
+
+    test('Should pass `data.name`', function() {
+      var data = this.app.emit.withArgs('activity:pick').args[0][1];
+      assert.equal(data.name, 'pick');
+    });
+
+    test('Should pass `data.maxPixelSize`', function() {
+      var data = this.app.emit.withArgs('activity:pick').args[0][1];
+      assert.equal(data.maxPixelSize, '<max-pixel-size>');
+    });
+
+    test('Should not do anything if name is unrecognised', function() {
+      this.app.emit.reset();
+
+      this.activity.source.name = 'unknown';
+      this.controller.onMessage(this.activity);
+
+      assert.isFalse(this.app.emit.calledWith('activity'));
+      assert.isFalse(this.app.emit.calledWith('activity:unknown'));
+    });
+  });
+
+  suite('ActivityController#getMaxPixelSize()', function() {
+    setup(function() {
+
+      this.activity = {
+        source: {
+          name: 'pick',
+          data: {
+            type: 'image/jpeg',
+            maxFileSizeBytes: 100,
+            width: 100,
+            height: 100
+          },
+        }
+      };
+
+      this.settings.activity.get
+        .withArgs('maxPickPixelSize')
+        .returns(480000);
+
+      this.settings.activity.get
+        .withArgs('maxPixelSizeScaleFactor')
+        .returns(2.5);
+    });
+
+    test('Should return pixel estimate of maxFileSizeBytes if supplied', function() {
+      var result = this.controller.getMaxPixelSize(this.activity);
+      assert.equal(result, 267);
+    });
+
+    test('Should return a pixel estimate based on width height if supplied', function() {
+      delete this.activity.source.data.maxFileSizeBytes;
+      var result = this.controller.getMaxPixelSize(this.activity);
+      assert.equal(result, 25000);
+    });
+
+    test('Should return `maxPickPixelSize` if neither supplied', function() {
+      delete this.activity.source.data.maxFileSizeBytes;
+      delete this.activity.source.data.width;
+      delete this.activity.source.data.height;
+
+      var result = this.controller.getMaxPixelSize(this.activity);
+      assert.equal(result, this.settings.activity.get('maxPickPixelSize'));
+    });
+
+    test('Should be able to cope with only one dimension being specified', function() {
+      delete this.activity.source.data.maxFileSizeBytes;
+      delete this.activity.source.data.height;
+      var result = this.controller.getMaxPixelSize(this.activity);
+      assert.equal(result, (1/3 * 100000));
+
+      delete this.activity.source.data.width;
+      this.activity.source.data.height = 100;
+      result = this.controller.getMaxPixelSize(this.activity);
+      assert.equal(result, (1/3 * 100000));
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/battery_test.js

@@ -0,0 +1,235 @@
+suite('controllers/battery', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/battery',
+      'lib/settings',
+      'lib/setting',
+      'views/notification'
+    ], function(
+      App, BatteryController, Settings, Setting, NotificationView) {
+      self.BatteryController = BatteryController.BatteryController;
+      self.NotificationView = NotificationView;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    var levels = {
+      low: 15,
+      verylow: 10,
+      critical: 6,
+      shutdown: 5,
+      healthy: 100
+    };
+
+    this.app = sinon.createStubInstance(this.App);
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.battery = sinon.createStubInstance(this.Setting);
+    this.app.settings.battery.get.withArgs('levels').returns(levels);
+    this.app.l10n = { get: sinon.stub() };
+    this.app.localized = sinon.stub().returns(true);
+    this.app.views = {
+      notification: sinon.createStubInstance(this.NotificationView)
+    };
+
+    // Fake battery
+    this.app.battery = {
+      addEventListener: sinon.stub(),
+      level: 1,
+      charging: false
+    };
+
+    // Shortcuts
+    this.notification = this.app.views.notification;
+
+    // Keep reference of
+    // things we want to restore
+    this.backup = {
+      mozSettings: navigator.mozSettings
+    };
+
+    // Mock object that mimicks
+    // mozSettings get API. Inside
+    // tests set this.mozSettingsGetResult
+    // define the result of the mock call.
+    navigator.mozSettings = {
+      createLock: function() { return this; },
+      get: sinon.stub(),
+      set: sinon.stub(),
+      addObserver: sinon.stub()
+    };
+
+    navigator.mozSettings.get.withArgs('powersave.enabled').returns(
+      Promise.resolve({'powersave.enabled': false})
+    );
+
+    // Our test instance
+    this.controller = new this.BatteryController(this.app);
+  });
+
+  teardown(function() {
+    navigator.mozSettings = this.backup.mozSettings;
+  });
+
+  suite('BatteryController()', function() {
+    test('Should listen to the following events', function() {
+      assert.ok(this.app.on.calledWith('change:batteryStatus'));
+      assert.ok(this.app.on.calledWith('change:recording'));
+      assert.ok(this.app.battery.addEventListener.calledWith('levelchange'));
+      assert.ok(this.app.battery.addEventListener.calledWith('chargingchange'));
+      assert.ok(navigator.mozSettings.addObserver.calledWith('powersave.enabled'));
+    });
+
+    test('Should update the status initially', function() {
+      assert.ok(this.app.set.calledWith('batteryStatus', 'healthy'));
+    });
+
+    test('Should query power save state', function() {
+      assert.ok(navigator.mozSettings.get.calledWith('powersave.enabled'));
+    });
+  });
+
+  suite('BatteryController#updateStatus()', function() {
+    test('should call app.set with batteryStatus and battery charging' +
+        ' on updateStatus', function() {
+      this.app.battery.charging = true;
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'charging'));
+    });
+
+    test('should call app.set with batteryStatus and low battery level' +
+        ' on updateStatus', function() {
+      this.app.battery.level = 0.11;
+      this.controller.app.get
+        .withArgs('batteryStatus')
+        .returns('charging');
+
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'low'));
+    });
+
+    test('should call app.set with batteryStatus and verylow battery' +
+          ' level on updateStatus', function() {
+      this.app.battery.level = 0.10;
+      this.controller.app.get
+        .withArgs('batteryStatus')
+        .returns('low');
+
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'verylow'));
+    });
+
+    test('should call app.set with batteryStatus and critical battery' +
+        ' level on updateStatus', function() {
+      this.app.battery.level = 0.06;
+      this.controller.app.get
+        .withArgs('batteryStatus')
+        .returns('verylow');
+
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'critical'));
+    });
+
+    test('should call app.set with batteryStatus and battery shutdown' +
+        ' level on updateStatus', function() {
+      this.app.battery.level = 0.05;
+      this.controller.app.get
+        .withArgs('batteryStatus')
+        .returns('critical');
+
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'shutdown'));
+    });
+
+    test('should call app.set with batteryStatus and battery healthy' +
+        ' level on updateStatus', function() {
+      this.app.battery.level = 1;
+      this.controller.app.get
+        .withArgs('batteryStatus')
+        .returns('charging');
+
+      this.controller.updateStatus();
+      assert.ok(this.app.set.calledWith('batteryStatus', 'healthy'));
+    });
+  });
+
+  suite('BatteryController#onStatusChange()', function() {
+    test('Should display notification if required', function() {
+      this.controller.onStatusChange('low');
+      assert.isTrue(this.notification.display.called);
+      this.notification.display.reset();
+
+      this.controller.onStatusChange('verylow');
+      assert.isTrue(this.notification.display.called);
+      this.notification.display.reset();
+
+      this.controller.onStatusChange('critical');
+      assert.isTrue(this.notification.display.called);
+      this.notification.display.reset();
+
+      this.controller.onStatusChange('healthy');
+      assert.isFalse(this.notification.display.called);
+      this.notification.display.reset();
+
+      this.controller.onStatusChange('shutdown');
+      assert.isFalse(this.notification.display.called);
+      this.notification.display.reset();
+    });
+
+    test('Should always clear the last notification', function() {
+      this.controller.onStatusChange('low');
+      assert.isTrue(this.notification.clear.called);
+    });
+  });
+
+  suite('BatteryController#updatePowerSave()', function() {
+    setup(function() {
+      this.controller.powerSave = true;
+      this.controller.powerSaveEnabled = true;
+      this.app.get.withArgs('recording').returns(false);
+    });
+
+    test('Should emit `battery:powersave` if changed', function() {
+      this.controller.powerSave = false;
+      this.controller.updatePowerSave();
+      assert.isTrue(this.controller.powerSave);
+      assert.ok(this.app.emit.calledWith('battery:powersave', true));
+    });
+
+    test('Should disable if recording', function() {
+      this.app.get.withArgs('recording').returns(true);
+      this.controller.updatePowerSave();
+      assert.isFalse(this.controller.powerSave);
+      assert.ok(this.app.emit.calledWith('battery:powersave', false));
+    });
+
+    test('Should disable if power save disabled', function() {
+      this.controller.powerSaveEnabled = false;
+      this.controller.updatePowerSave();
+      assert.isFalse(this.controller.powerSave);
+      assert.ok(this.app.emit.calledWith('battery:powersave', false));
+    });
+  });
+
+  suite('BatteryController#onPowerSaveChange()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'updatePowerSave');
+      this.controller.onPowerSaveChange({settingValue: 'result'});
+    });
+
+    test('Should cache power save enabled state', function() {
+      assert.isTrue(this.controller.powerSaveEnabled === 'result');
+    });
+
+    test('Should call `updatePowerSave`', function() {
+      assert.ok(this.controller.updatePowerSave.called);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/camera_test.js

@@ -0,0 +1,762 @@
+/*jshint maxlen:false*/
+
+suite('controllers/camera', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/camera',
+      'lib/camera/camera',
+      'lib/settings',
+      'lib/setting',
+      'lib/geo-location'
+    ], function(
+      App, CameraController, Camera, Settings, Setting, GeoLocation) {
+      self.CameraController = CameraController.CameraController;
+      self.GeoLocation = GeoLocation;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      self.Camera = Camera;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+    this.app = sinon.createStubInstance(this.App);
+    this.app.camera = sinon.createStubInstance(this.Camera);
+    this.app.geolocation = sinon.createStubInstance(this.GeoLocation);
+    this.app.views = {
+      notification: {
+        display: sinon.spy()
+      }
+    };
+
+    // Activity
+    this.app.activity = {};
+
+    this.app.storage = {
+      getItem: sinon.stub(),
+      setItem: sinon.stub()
+    };
+
+    this.app.get.withArgs('batteryStatus').returns('healthy');
+
+    // Settings
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.cameras = sinon.createStubInstance(this.Setting);
+    this.app.settings.mode = sinon.createStubInstance(this.Setting);
+    this.app.settings.pictureSizes = sinon.createStubInstance(this.Setting);
+    this.app.settings.isoModes = sinon.createStubInstance(this.Setting);
+    this.app.settings.recorderProfiles = sinon.createStubInstance(this.Setting);
+    this.app.settings.flashModes = sinon.createStubInstance(this.Setting);
+    this.app.settings.whiteBalance = sinon.createStubInstance(this.Setting);
+    this.app.settings.hdr = sinon.createStubInstance(this.Setting);
+    this.app.settings.flashModesPicture = sinon.createStubInstance(this.Setting);
+    this.app.settings.countdown = sinon.createStubInstance(this.Setting);
+
+    // Aliases
+    this.settings = this.app.settings;
+    this.notification = this.app.views.notification;
+    this.storage = this.app.storage;
+    this.camera = this.app.camera;
+
+    this.camera.cameraList = ['back', 'front'];
+
+    // Test instance (some tests create there own)
+    this.controller = new this.CameraController(this.app);
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('CameraController()', function() {
+    setup(function() {
+      this.sandbox.stub(this.CameraController.prototype, 'shutdownCamera');
+    });
+
+    test('Should filter the `cameras` setting based on the camera list', function() {
+      sinon.assert.calledWith(this.settings.cameras.filterOptions, this.camera.cameraList);
+    });
+
+    test('Should load camera on app `visible`', function() {
+      assert.isTrue(this.app.on.calledWith('visible', this.controller.loadCamera));
+    });
+
+    test('Should teardown camera on app `hidden`', function() {
+      assert.isTrue(this.app.on.calledWith('hidden', this.controller.shutdownCamera));
+    });
+
+    test('Should relay focus change events', function() {
+      assert.isTrue(this.camera.on.calledWith('change:focus'));
+      assert.isTrue(this.app.firer.calledWith('camera:focusstatechanged'));
+    });
+
+    test('Should listen to storage:changed', function() {
+      assert.isTrue(this.app.on.calledWith('storage:changed'));
+    });
+
+    test('Should listen to \'configured\' event', function() {
+      assert.isTrue(this.camera.on.calledWith('configured'));
+    });
+
+    test('Should listen to the \'activity:pick\' event', function() {
+      sinon.assert.calledWith(this.app.on, 'activity:pick');
+    });
+
+    test('Should query battery status', function() {
+      sinon.assert.calledWith(this.app.get, 'batteryStatus');
+      assert.isFalse(this.controller.lowBattery);
+    });
+  });
+
+  suite('camera.on(\'configured\')', function() {
+    test('Should relay via app event', function() {
+      sinon.assert.calledWith(this.camera.on, 'configured');
+      sinon.assert.calledWith(this.app.firer, 'camera:configured');
+    });
+  });
+
+  suite('on(\'activity:pick\')', function() {
+    setup(function() {
+      var spy = this.app.on.withArgs('activity:pick');
+      this.callback = spy.args[0][1];
+
+      this.data = { maxFileSizeBytes: 100 };
+      this.callback(this.data);
+    });
+
+    test('Should set `maxFileSizeBytes` on camera', function() {
+      sinon.assert.calledWith(this.camera.set, 'maxFileSizeBytes', 100);
+    });
+
+    test('Should disable the camera boot config caching', function() {
+      this.camera.cacheConfig = true;
+      this.callback({});
+      assert.isFalse(this.camera.cacheConfig);
+    });
+  });
+
+  suite('CameraController#onSettingsConfigured()', function() {
+    setup(function() {
+
+      // Mock object that mimicks
+      // mozSettings get API. Inside
+      // tests set this.mozSettingsGetResult
+      // define the result of the mock call.
+      navigator.mozSettings = {
+        createLock: function() { return this; },
+        get: function(key) {
+          var mozSettings = this;
+          setTimeout(function() {
+            var result = {};
+            result[key] = 'the-result';
+            mozSettings.onsuccess({
+              target: {
+                result: result
+              }
+            });
+          });
+          return this;
+        }
+      };
+
+      this.app.settings.flashModes.selected.returns('on');
+      this.app.settings.isoModes.get = sinon.spy();
+      this.app.settings.isoModes.selected.returns({key: 'auto'});
+      this.app.settings.pictureSizes.selected.returns({ width: 480, height: 640 });
+      this.app.settings.recorderProfiles.selected.returns('cif');
+      this.app.settings.hdr.selected.returns('on');
+
+      // Returns `this` to allow chaining
+      this.app.camera.setRecorderProfile.returns(this.app.camera);
+      this.app.camera.setPictureSize.returns(this.app.camera);
+      this.app.camera.configureZoom.returns(this.app.camera);
+
+      this.controller = new this.CameraController(this.app);
+      this.controller.onSettingsConfigured();
+    });
+
+    test('Should set flashMode', function() {
+      assert.ok(this.camera.setFlashMode.called);
+    });
+
+    test('Should set hdr', function() {
+      assert.ok(this.camera.setHDR.calledWith('on'));
+    });
+
+    test('Should set recorderProfile', function() {
+      assert.ok(this.camera.setRecorderProfile.calledWith('cif'));
+    });
+
+    test('Should set pictureSize', function() {
+      var arg = this.app.camera.setPictureSize.args[0][0];
+
+      assert.ok(arg.width === 480);
+      assert.ok(arg.height === 640);
+    });
+  });
+
+  suite('CameraController#onRecordingChange', function() {
+    test('Should set `recording` to true if started', function() {
+      this.controller.onRecordingChange('started');
+      assert.ok(this.app.set.calledWith('recording', true));
+    });
+
+    test('Should set `recording` to true if stopped', function() {
+      this.controller.onRecordingChange('stopped');
+      assert.ok(this.app.set.calledWith('recording', false));
+    });
+
+    test('Should not set `recording` if starting or stopping', function() {
+      var self = this;
+      ['error', 'starting', 'stopping'].forEach(function(recording) {
+        self.controller.onRecordingChange(recording);
+        sinon.assert.notCalled(self.app.set);
+      });
+    });
+  });
+
+  suite('CameraController#onCaptureKey', function() {
+    setup(function() {
+      this.app.busy = false;
+      this.controller.lowBattery = false;
+    });
+
+    test('`keydown:capture` triggers capture', function() {
+      var callback = this.app.on.withArgs('keydown:capture').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.called(this.camera.capture);
+    });
+
+    test('It calls preventDefault if the capture call doesn\'t return false', function() {
+      var callback = this.app.on.withArgs('keydown:capture').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      this.camera.capture.returns(false);
+      callback(event);
+      sinon.assert.notCalled(event.preventDefault);
+
+      this.camera.capture.returns(undefined);
+      callback(event);
+      sinon.assert.called(event.preventDefault);
+    });
+
+    test('It doesnt capture if countdown is active', function() {
+      this.controller.countdown = 999;
+      var callback = this.app.on.withArgs('keydown:capture').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.notCalled(this.camera.capture);
+    });
+
+    test('It doesnt capture if confirm overlay is shown', function() {
+      this.app.get.withArgs('confirmViewVisible').returns(true);
+      var callback = this.app.on.withArgs('keydown:capture').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.notCalled(this.camera.capture);
+    });
+
+    test('It doesnt capture if busy', function() {
+      this.app.busy = true;
+      var callback = this.app.on.withArgs('keydown:capture').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.notCalled(this.camera.capture);
+    });
+  });
+
+  suite('CameraController#onFocusKey', function() {
+    setup(function() {
+      this.app.busy = false;
+      this.camera.focus = {
+        focus: this.sinon.spy()
+      };
+    });
+
+    test('`keydown:focus` triggers focus', function() {
+      var callback = this.app.on.withArgs('keydown:focus').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.called(this.camera.focus.focus);
+    });
+
+    test('It doesnt focus if busy', function() {
+      this.app.busy = true;
+      var callback = this.app.on.withArgs('keydown:focus').args[0][1];
+      var event = { preventDefault: sinon.spy() };
+
+      callback(event);
+      sinon.assert.notCalled(this.camera.focus.focus);
+    });
+  });
+
+  suite('CameraController#setMode()', function() {
+    test('It sets the flash mode', function() {
+      this.controller.setMode();
+      sinon.assert.called(this.notification.display);
+      sinon.assert.called(this.camera.setFlashMode);
+    });
+
+    test('It emits `camera:willchange` event', function() {
+      this.controller.setMode();
+      sinon.assert.calledWith(this.app.emit, 'camera:willchange');
+    });
+
+    test('It sets the mode once the viewfinder is hidden', function() {
+      this.controller.setMode('my-mode');
+      sinon.assert.calledWith(this.app.once, 'viewfinder:hidden');
+
+      // call the callback
+      this.app.once.withArgs('viewfinder:hidden').args[0][1]();
+      sinon.assert.calledWith(this.camera.setMode, 'my-mode');
+    });
+
+    test('It doesn\'t set the do anything if the mode didn\'t change', function() {
+      this.camera.isMode.returns(true);
+      this.controller.setMode('my-mode');
+      assert.isFalse(this.app.emit.calledWith('camera:willchange'));
+    });
+  });
+
+  suite('CameraController#setCamera()', function() {
+    test('It emits `camera:willchange` event', function() {
+      this.controller.setMode();
+      sinon.assert.calledWith(this.app.emit, 'camera:willchange');
+    });
+
+    test('It sets the camera once the viewfinder is hidden', function() {
+      this.controller.setCamera('back');
+      sinon.assert.calledWith(this.app.once, 'viewfinder:hidden');
+
+      // call the callback
+      this.app.once.withArgs('viewfinder:hidden').args[0][1]();
+      sinon.assert.calledWith(this.camera.setCamera, 'back');
+    });
+  });
+
+  suite('CameraController#updatePictureSize()', function() {
+    setup(function() {
+      this.settings.mode.selected
+        .withArgs('key')
+        .returns('picture');
+
+      this.settings.pictureSizes.selected
+        .withArgs('data')
+        .returns({ width: 400, height: 300 });
+    });
+
+    test('It emits `camera:willchange` event', function() {
+      this.controller.updatePictureSize();
+      sinon.assert.calledWith(this.app.emit, 'camera:willchange');
+    });
+
+    test('It sets the camera once the viewfinder is hidden', function() {
+      this.controller.updatePictureSize();
+      sinon.assert.calledWith(this.app.once, 'viewfinder:hidden');
+
+      // call the callback
+      this.app.once.withArgs('viewfinder:hidden').args[0][1]();
+      sinon.assert.calledWith(this.camera.setPictureSize, { width: 400, height: 300 });
+    });
+
+    test('It doesn\'t proceed if `pictureSize` didn\'t change', function() {
+      this.camera.isPictureSize.returns(true);
+      this.controller.updatePictureSize();
+      assert.isFalse(this.app.emit.calledWith('camera:willchange'));
+    });
+
+    suite('`video` mode', function() {
+      setup(function() {
+        this.settings.mode.selected
+          .withArgs('key')
+          .returns('video');
+      });
+
+      test('It doesn\'t emit `camera:willchange` if in `video` mode', function() {
+        this.controller.updatePictureSize();
+        assert.isFalse(this.app.emit.calledWith('camera:willchange'));
+      });
+
+      test('It calls `camera.setPictureSize`, but doesn\'t reconfigure camera', function() {
+        this.controller.updatePictureSize();
+        sinon.assert.calledWith(
+          this.camera.setPictureSize,
+          { width: 400, height: 300 },
+          { configure: false }
+        );
+      });
+    });
+  });
+
+  suite('CameraController#updateRecorderProfile()', function() {
+    setup(function() {
+      this.settings.mode.selected
+        .withArgs('key')
+        .returns('video');
+
+      this.settings.recorderProfiles.selected
+        .withArgs('key')
+        .returns('720p');
+    });
+
+    test('It emits `camera:willchange` event', function() {
+      this.controller.updateRecorderProfile();
+      sinon.assert.calledWith(this.app.emit, 'camera:willchange');
+    });
+
+    test('It sets the camera once the viewfinder is hidden', function() {
+      this.controller.updateRecorderProfile();
+      sinon.assert.calledWith(this.app.once, 'viewfinder:hidden');
+
+      // call the callback
+      this.app.once.withArgs('viewfinder:hidden').args[0][1]();
+      sinon.assert.calledWith(this.camera.setRecorderProfile, '720p');
+    });
+
+    test('It doesn\'t proceed if `recorderProfile` didn\'t change', function() {
+      this.camera.isRecorderProfile.returns(true);
+      this.controller.updateRecorderProfile();
+      assert.isFalse(this.app.emit.calledWith('camera:willchange'));
+    });
+
+    suite('`picture` mode', function() {
+      setup(function() {
+        this.settings.mode.selected
+          .withArgs('key')
+          .returns('picture');
+      });
+
+      test('It doesn\'t emit `camera:willchange` if in `video` mode', function() {
+        this.controller.updateRecorderProfile();
+        assert.isFalse(this.app.emit.calledWith('camera:willchange'));
+      });
+
+      test('It calls `camera.setRecorderProfile`, but doesn\'t reconfigure camera', function() {
+        this.controller.updateRecorderProfile();
+        sinon.assert.calledWith(
+          this.camera.setRecorderProfile,
+          '720p',
+          { configure: false }
+        );
+      });
+    });
+  });
+
+  suite('CameraController#onHDRChange()', function() {
+    test('Should set flashModesPicture \'off\' when hdr is set to \'on\'',
+      function() {
+      var flashModesPicture = this.app.settings.flashModesPicture;
+
+      flashModesPicture.selected.withArgs('key').returns('on');
+      this.controller.onHDRChange('on');
+
+      assert.ok(flashModesPicture.select.calledWith('off'));
+    });
+  });
+
+  suite('CameraController#setHDR()', function() {
+    setup(function() {
+      this.settings.hdr.selected
+        .withArgs('key')
+        .returns('on');
+    });
+
+    test('Should call camera.setHDR with given value', function() {
+      this.controller.setHDR();
+      sinon.assert.calledWith(this.camera.setHDR, 'on');
+    });
+
+    test('Should not call camera.setHDR if `hdrDisabled`', function() {
+      this.controller.hdrDisabled = true;
+      this.controller.setHDR();
+      sinon.assert.notCalled(this.camera.setHDR);
+    });
+  });
+
+  suite('CameraController#onFlashModeChange()', function() {
+    setup(function() {
+      this.settings.hdr.selected
+        .withArgs('key')
+        .returns('on');
+    });
+
+    test('Should change hdr to off if flash is on', function() {
+      this.controller.hdrDisabled = false;
+      this.controller.onFlashModeChange('on');
+      assert.ok(this.settings.hdr.select.calledWith('off'));
+    });
+
+    test('Should not change HDR if flash is off', function() {
+      this.controller.hdrDisabled = false;
+      this.controller.onFlashModeChange('off');
+      assert.ok(!this.settings.hdr.select.called);
+    });
+
+    test('Should not change HDR if HDR is off', function() {
+      this.settings.hdr.selected.withArgs('key').returns('off');
+      this.controller.hdrDisabled = true;
+      this.controller.onFlashModeChange('auto');
+      assert.ok(!this.settings.hdr.select.called);
+    });
+
+    test('Should not change HDR if HDR is disabled', function() {
+      this.controller.hdrDisabled = true;
+      this.controller.onFlashModeChange('auto');
+      assert.ok(!this.settings.hdr.select.called);
+    });
+  });
+
+  suite('CameraController#capture()', function() {
+    setup(function() {
+      this.controller.galleryOpen = false;
+      this.controller.lowBattery = false;
+      sinon.spy(this.controller, 'startCountdown');
+    });
+
+    test('Should not start countdown if no countdown setting is set', function() {
+      this.app.settings.countdown.selected.returns(0);
+      this.app.get.withArgs('timerActive').returns(false);
+      this.app.get.withArgs('recording').returns(false);
+      this.controller.capture();
+      sinon.assert.notCalled(this.controller.startCountdown);
+    });
+
+    test('Should not start countdown if countdown is already active', function() {
+      this.app.settings.countdown.selected.returns(5);
+      this.controller.countdown = 999;
+      this.app.get.withArgs('recording').returns(false);
+      this.controller.capture();
+      sinon.assert.notCalled(this.controller.startCountdown);
+    });
+
+    test('Should not start countdown if recording', function() {
+      this.app.settings.countdown.selected.returns(5);
+      this.app.get.withArgs('timerActive').returns(false);
+      this.app.get.withArgs('recording').returns(true);
+      this.controller.capture();
+      sinon.assert.notCalled(this.controller.startCountdown);
+    });
+
+    test('Should otherwise start countdown', function() {
+      this.app.settings.countdown.selected.returns(5);
+      this.app.get.withArgs('timerActive').returns(false);
+      this.app.get.withArgs('recording').returns(false);
+      this.controller.capture();
+      sinon.assert.calledOnce(this.controller.startCountdown);
+    });
+
+    test('Should pass the current geolocation position', function() {
+      this.app.geolocation.position = 123;
+      this.controller.capture();
+      assert.ok(this.app.camera.capture.args[0][0].position === 123);
+    });
+
+    test('Should return false if low battery', function() {
+      this.controller.lowBattery = true;
+      assert.ok(this.controller.capture() === false);
+    });
+
+    test('Should return false if gallery open', function() {
+      this.controller.galleryOpen = true;
+      assert.ok(this.controller.capture() === false);
+    });
+  });
+
+  suite('CameraController#onBatteryStatusChange()', function() {
+    setup(function() {
+      this.controller.loadCamera = sinon.stub();
+      sinon.spy(this.controller, 'shutdownCamera');
+      this.controller.clearCountdown = sinon.stub();
+    });
+
+    test('Should call onBatteryStatuchange on \'change:batteryStatus\'',
+      function() {
+      this.app.on.calledWith('change:batteryStatus', this.onBatteryStatusChange);
+    });
+
+    test('Should load camera on `healthy` status', function() {
+      this.controller.onBatteryStatusChange('healthy');
+      assert.isTrue(this.controller.loadCamera.called);
+    });
+
+    test('Should shutdown camera on `shutdown` status', function() {
+      this.controller.onBatteryStatusChange('shutdown');
+      assert.isTrue(this.controller.shutdownCamera.called);
+    });
+
+    test('Should clear countdown on `shutdown` status', function() {
+      this.controller.onBatteryStatusChange('shutdown');
+      sinon.assert.calledOnce(this.controller.clearCountdown);
+    });
+
+    test('Should prevent capture on low battery', function() {
+      this.controller.onBatteryStatusChange('shutdown');
+      this.controller.capture();
+      assert.isFalse(this.camera.capture.called);
+
+      this.controller.onBatteryStatusChange('healthy');
+      this.controller.capture();
+      assert.isTrue(this.camera.capture.called);
+    });
+  });
+
+  suite('CameraController#startCountdown()', function() {
+    setup(function() {
+      this.app.settings.countdown.selected.withArgs('value').returns(5);
+      this.clock = this.sinon.useFakeTimers();
+      this.controller.lowBattery = false;
+    });
+
+    test('Emits a `countdown:started` event', function() {
+      this.controller.startCountdown();
+      sinon.assert.calledWith(this.app.emit, 'countdown:started', 5);
+    });
+
+    test('Emits a `countdown:tick` event each second', function() {
+      this.controller.startCountdown();
+      this.clock.tick(1000);
+      sinon.assert.calledWith(this.app.emit, 'countdown:tick', 4);
+      this.clock.tick(1000);
+      sinon.assert.calledWith(this.app.emit, 'countdown:tick', 3);
+      this.clock.tick(1000);
+      sinon.assert.calledWith(this.app.emit, 'countdown:tick', 2);
+      this.clock.tick(1000);
+      sinon.assert.calledWith(this.app.emit, 'countdown:tick', 1);
+    });
+
+    test('Emits a `countdown:ended` event once it reaches 0', function() {
+      this.controller.startCountdown();
+      this.clock.tick(5000);
+      sinon.assert.calledWith(this.app.emit, 'countdown:ended');
+    });
+
+    test('It calls camera.capture once ended', function() {
+      this.controller.startCountdown();
+      this.clock.tick(5000);
+      sinon.assert.calledOnce(this.camera.capture);
+    });
+
+    test('It clears the coundown when the app base el is clicked', function() {
+      var proto = this.controller.constructor.prototype;
+      var clearCountdown = this.sinon.spy(proto, 'clearCountdown');
+
+      this.app.on.reset();
+
+      var controller = new this.CameraController(this.app);
+      var callback = this.app.on.withArgs('click').args[0][1];
+
+      controller.startCountdown();
+      this.clock.tick(2000);
+      callback();
+
+      sinon.assert.calledOnce(clearCountdown);
+    });
+  });
+
+  suite('CameraController#loadCamera()', function() {
+    setup(function() {
+      this.app.hidden = false;
+      this.app.activity.pick = false;
+      this.app.isSharingActivity = sinon.stub();
+      this.app.isSharingActivity.returns(false);
+      this.app.showSpinner = sinon.stub();
+      this.controller.galleryOpen = false;
+      this.controller.lowBattery = false;
+    });
+
+    test('It doesn\'t load the camera if the battery is low', function() {
+      this.controller.lowBattery = true;
+      this.controller.loadCamera();
+      sinon.assert.notCalled(this.camera.load);
+    });
+
+    test('It does load the camera if the battery is not low', function() {
+      this.controller.loadCamera();
+      sinon.assert.called(this.camera.load);
+    });
+
+    test('It doesn\'t load the camera if gallery is open', function() {
+      this.controller.galleryOpen = true;
+      this.controller.loadCamera();
+      sinon.assert.notCalled(this.camera.load);
+    });
+
+    test('It does load the camera if gallery is closed', function() {
+      this.controller.loadCamera();
+      sinon.assert.called(this.camera.load);
+    });
+
+    test('It doesn\'t load the camera if app is hidden', function() {
+      this.app.hidden = true;
+      this.controller.loadCamera();
+      sinon.assert.notCalled(this.camera.load);
+      sinon.assert.notCalled(this.app.showSpinner);
+    });
+
+    test('It does load the camera if app is visible', function() {
+      this.controller.loadCamera();
+      sinon.assert.called(this.camera.load);
+      sinon.assert.notCalled(this.app.showSpinner);
+    });
+
+    test('It shows the spinner if loading and requested', function() {
+      this.controller.loadCamera(true);
+      sinon.assert.called(this.app.showSpinner);
+    });
+  });
+
+  suite('CameraController#shutdownCamera()', function() {
+    setup(function() {
+      this.controller.shutdownCamera();
+    });
+
+    test('Should stop shutdown the camera', function() {
+      assert.isTrue(this.camera.shutdown.called);
+    });
+
+  });
+
+  suite('CameraController#onStorageChanged()', function() {
+    test('Should stop recording if not available', function() {
+      this.controller.onStorageChanged('unavailable');
+      assert.isTrue(this.camera.stopRecording.called);
+    });
+
+    test('Should not stop recording if available', function() {
+      this.controller.onStorageChanged('available');
+      assert.isTrue(this.camera.stopRecording.notCalled);
+    });
+  });
+
+  suite('CameraController#onGalleryOpened()', function() {
+    test('Should store gallery open state', function() {
+      this.controller.shutdownCamera = sinon.stub();
+      this.controller.galleryOpen = false;
+      this.controller.onGalleryOpened();
+      assert.isTrue(this.controller.galleryOpen);
+      sinon.assert.called(this.controller.shutdownCamera);
+    });
+  });
+
+  suite('CameraController#onGalleryClosed()', function() {
+    test('It loads the camera', function() {
+      this.controller.loadCamera = sinon.stub();
+      this.controller.galleryOpen = true;
+      this.controller.onGalleryClosed();
+      assert.isFalse(this.controller.galleryOpen);
+      sinon.assert.calledWith(this.controller.loadCamera, true);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/confirm_test.js

@@ -0,0 +1,88 @@
+/*jshint maxlen:false*/
+'use strict';
+
+suite('controllers/confirm', function() {
+  suiteSetup(function(done) {
+    var modules = this.modules = {};
+    requirejs([
+      'controllers/confirm',
+      'views/confirm'
+    ], function(Controller, ConfirmView) {
+      modules.controller = Controller;
+      modules.ConfirmView = ConfirmView;
+      done();
+    });
+  });
+
+  setup(function() {
+    var ConfirmView = this.modules.ConfirmView;
+    var Controller = this.modules.controller;
+
+    this.app = {
+      activity: {},
+      camera: { on: sinon.spy() },
+      ConfirmView: ConfirmView,
+      on: sinon.spy()
+    };
+
+    this.controller = new Controller(this.app);
+    this.sandbox = sinon.sandbox.create();
+    this.sandbox.spy(this.app, 'ConfirmView');
+    this.sandbox.stub(ConfirmView.prototype);
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('ConfirmController()', function() {
+    test('Should bind to app `newmedia` event', function() {
+      assert.ok(this.app.on.calledWith('newmedia'));
+    });
+  });
+
+  suite('ConfirmController#onRecordingChange()', function() {
+    setup(function() {
+      this.app.activity.pick = true;
+      this.controller.recording = true;
+      sinon.stub(this.controller, 'renderView');
+    });
+
+    test('Should set `recording` to true if starting', function() {
+      this.controller.recording = false;
+      this.controller.onRecordingChange('starting');
+      assert.isTrue(this.controller.recording);
+    });
+
+    test('Should set `recording` to false if error', function() {
+      this.controller.onRecordingChange('error');
+      assert.isFalse(this.controller.recording);
+    });
+
+    test('Should render view if stopped', function() {
+      this.controller.onRecordingChange('stopped');
+      sinon.assert.called(this.controller.renderView);
+    });
+
+    test('Should not do anything if recording failed and stopped', function() {
+      this.controller.recording = false;
+      this.controller.onRecordingChange('stopped');
+      sinon.assert.notCalled(this.controller.renderView);
+    });
+
+    test('Should not do anything if there is no active activity', function() {
+      this.app.activity.pick = false;
+      this.controller.onRecordingChange('stopped');
+      sinon.assert.notCalled(this.controller.renderView);
+    });
+  });
+
+  suite('ConfirmController#onNewMedia()', function() {
+    test('Should not do anything if there is no active activity', function() {
+      this.app.activity.pick = false;
+      this.controller.onNewMedia({});
+      assert.ok(this.app.ConfirmView.notCalled);
+    });
+  });
+
+});

gaia/apps/camera/test/unit/controllers/controls_test.js

@@ -0,0 +1,214 @@
+
+suite('controllers/controls', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'lib/camera/camera',
+      'controllers/controls',
+      'views/controls',
+      'lib/settings',
+      'lib/setting'
+    ], function(
+    App, Camera, ControlsController, ControlsView, Settings, Setting) {
+      self.App = App;
+      self.Camera = Camera;
+      self.ControlsController = ControlsController.ControlsController;
+      self.ControlsView = ControlsView;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.camera = sinon.createStubInstance(this.Camera);
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.mode = sinon.createStubInstance(this.Setting);
+    this.app.views = { controls: sinon.createStubInstance(this.ControlsView) };
+    this.app.activity = { allowedTypes: {} };
+
+    // Fake available modes
+    this.app.settings.mode.get
+      .withArgs('options')
+      .returns([{ key: 'picture' }, { key: 'video' }]);
+
+    // Aliases
+    this.controls = this.app.views.controls;
+    this.view = this.app.views.controls;
+    this.settings = this.app.settings;
+
+    this.controller = new this.ControlsController(this.app);
+    this.state = {};
+  });
+
+  teardown(function() {
+    delete this.controller;
+  });
+
+  suite('ControlsController()', function() {
+    test('Should listen to the following events', function() {
+      assert.ok(this.app.on.calledWith('localized', this.view.localize));
+      assert.ok(this.app.on.calledWith('previewgallery:opened',
+        this.view.hide));
+      assert.ok(this.app.on.calledWith('previewgallery:closed',
+        this.view.show));
+    });
+
+    test('Should *not* show the cancel button when *not* within a \'pick\' activity', function() {
+      assert.isTrue(this.app.views.controls.set.calledWith('cancel', false));
+    });
+
+    test('Should show the cancel button when within activity', function() {
+      this.app.activity.pick = true;
+      this.state.controller = new this.ControlsController(this.app);
+      assert.isTrue(this.app.views.controls.set.calledWith('cancel', true));
+    });
+
+    test('It sets the mode to the value of the \'mode\' setting', function() {
+
+      // Test 'picture'
+      this.app.settings.mode.selected.returns('picture');
+      var controller = new this.ControlsController(this.app);
+      sinon.assert.calledWith(this.view.setMode, 'picture');
+      this.view.set.reset();
+
+      // Test 'video'
+      this.app.settings.mode.selected.returns('video');
+      controller = new this.ControlsController(this.app);
+      sinon.assert.calledWith(this.view.setMode, 'video');
+      this.view.set.reset();
+    });
+
+    test('Should call the preview when click on thumbnail', function() {
+      assert.ok(this.view.on.calledWith('click:thumbnail'));
+    });
+
+    test('Should remove the capture button highlight when shutter fires', function() {
+      sinon.assert.calledWith(this.app.on, 'camera:shutter');
+
+      // Call the callback
+      this.app.on.withArgs('camera:shutter').args[0][1]();
+
+      sinon.assert.calledWith(this.view.unset, 'capture-active');
+    });
+
+    test('Should disable the controls when the camera is busy', function() {
+      // Call the callback and check the view was disabled
+      this.app.on.withArgs('busy').args[0][1]();
+      sinon.assert.called(this.view.disable);
+    });
+
+    suite('app.once(\'loaded\')', function() {
+      setup(function() {
+        // Call the callback
+        this.app.once.withArgs('loaded').args[0][1]();
+      });
+
+      test('It enables the controls', function() {
+        sinon.assert.called(this.view.enable);
+      });
+
+      test('It \'restores\' the controls when the camera is \'ready\' from thereon after', function() {
+        sinon.assert.calledWith(this.app.on, 'ready', this.controller.restore);
+      });
+    });
+
+    test('Should hide the controls when the countdown is started', function() {
+      sinon.assert.calledWith(
+        this.app.on,
+        'countdown:started',
+        this.controller.onCountdownStarted
+      );
+    });
+
+    test('Should restore the controls when the countdown is cleared', function() {
+      sinon.assert.calledWith(
+        this.app.on,
+        'countdown:ended',
+        this.controller.onCountdownStopped
+      );
+    });
+
+    test('Should disable the view intitially until camera is ready', function() {
+      sinon.assert.called(this.view.disable);
+    });
+  });
+
+  suite('Set view screen reader visibility based on settings opened/closed',
+    function() {
+      test('settings opened -> hide view from screen reader', function() {
+        // Check the view is hidden from the screen reader.
+        this.app.on.withArgs('settings:opened').args[0][1]();
+        sinon.assert.calledWith(this.view.setScreenReaderVisible, false);
+      });
+
+      test('settings closed -> show view to screen reader', function() {
+        // Check the view is visible to the screen reader.
+        this.app.on.withArgs('settings:closed').args[0][1]();
+        sinon.assert.calledWith(this.view.setScreenReaderVisible, true);
+      });
+    });
+
+  suite('ControlsController#configureMode()', function() {
+    test('It\'s not switchable when only one mode is available', function() {
+
+      // Fake avaialable modes
+      this.app.settings.mode.get
+        .withArgs('options')
+        .returns([{ key: 'picture' }]);
+
+      this.controller.configureMode();
+      assert.isTrue(this.view.disable.calledWith('switch'));
+    });
+  });
+
+  suite('ControlsController#onCaptureClick', function() {
+    setup(function() {
+      sinon.spy(this.controller, 'captureHighlightOn');
+      this.controller.onCaptureClick();
+    });
+
+    test('Should highlight the capture button', function() {
+      assert.isTrue(this.controller.captureHighlightOn.calledOnce);
+    });
+
+    test('Should fire a \'capture\' event on the app', function() {
+      assert.isTrue(this.app.emit.calledWith('capture'));
+    });
+  });
+
+  suite('ControlsController#onCameraWillChange', function() {
+    test('When camera is reconfiguring it suspends the mode switch', function() {
+      this.controller.onCameraWillChange();
+      assert.isTrue(this.view.suspendModeSwitch.calledWith(true));
+    });
+  });
+
+  suite('ControlsController#onCameraConfigured', function() {
+    test('When camera is configured it unsuspends the mode switch', function() {
+      this.controller.onCameraConfigured();
+      assert.isTrue(this.view.suspendModeSwitch.calledWith(false));
+    });
+  });
+
+  suite('ControlsController#onRecordingChange', function() {
+    test('When recording view\'s setCaptureLabel should be called', function() {
+      [true, false].forEach(function(recording) {
+        this.controller.onRecordingChange(recording);
+        assert.isTrue(this.view.setCaptureLabel.calledWith(recording));
+      }, this);
+    });
+  });
+
+  suite('ControlsController.onViewModeChanged()', function() {
+    test('It switches to the next mode setting', function() {
+      this.controller.onViewModeChanged();
+      sinon.assert.notCalled(this.view.enable);
+      sinon.assert.called(this.settings.mode.next);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/hud_test.js

@@ -0,0 +1,242 @@
+suite('controllers/hud', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'lib/camera/camera',
+      'controllers/hud',
+      'views/hud',
+      'views/controls',
+      'views/viewfinder',
+      'views/notification',
+      'lib/settings',
+      'lib/setting'
+    ], function(
+      App, Camera, HudController, HudView, ControlsView,
+      ViewfinderView, NotificationView, Settings, Setting
+    ) {
+      self.HudController = HudController.HudController;
+      self.NotificationView = NotificationView;
+      self.ViewfinderView = ViewfinderView;
+      self.ControlsView = ControlsView;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      self.HudView = HudView;
+      self.Camera = Camera;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.camera = sinon.createStubInstance(this.Camera);
+    this.app.l10n = { get: sinon.spy(function(value) { return value; }) };
+    this.app.views = {
+      notification: sinon.createStubInstance(this.NotificationView),
+      viewfinder: sinon.createStubInstance(this.ViewfinderView),
+      controls: sinon.createStubInstance(this.ControlsView),
+      hud: sinon.createStubInstance(this.HudView)
+    };
+
+    // Stub 'cameras' setting
+    this.app.settings = {};
+    this.app.settings.cameras = sinon.createStubInstance(this.Setting);
+    this.app.settings.flashModes = sinon.createStubInstance(this.Setting);
+    this.app.settings.settingsMenu = sinon.createStubInstance(this.Setting);
+    this.app.settings.mode = sinon.createStubInstance(this.Setting);
+    this.app.settings.cameras.get.withArgs('options').returns([]);
+
+    // For convenience
+    this.notification = this.app.views.notification;
+    this.viewfinder = this.app.views.viewfinder;
+    this.controls = this.app.views.controls;
+    this.settings = this.app.settings;
+    this.camera = this.app.camera;
+    this.view = this.app.views.hud;
+
+    // Our test instance
+    this.controller = new this.HudController(this.app);
+  });
+
+  suite('HudController()', function() {
+    test('Should listen to the following events', function() {
+      assert.ok(this.app.settings.flashModes.on.calledWith('change:selected'));
+      assert.ok(this.app.settings.mode.on.calledWith('change:selected'));
+      assert.ok(this.app.settings.cameras.on.calledWith('change:selected'));
+
+      assert.ok(this.app.on.calledWith('settings:configured'));
+      assert.ok(this.app.on.calledWith('ready'));
+      assert.ok(this.app.on.calledWith('busy'));
+      assert.ok(this.app.on.calledWith('localized'));
+      assert.ok(this.app.on.calledWith('change:recording'));
+      assert.ok(this.app.on.calledWith('countdown:started'));
+      assert.ok(this.app.on.calledWith('countdown:ended'));
+      assert.ok(this.app.on.calledWith('settings:opened'));
+      assert.ok(this.app.on.calledWith('settings:closed'));
+
+      assert.ok(this.app.on.calledWith('previewgallery:opened',
+        this.view.hide));
+      assert.ok(this.app.on.calledWith('previewgallery:closed',
+        this.view.show));
+    });
+
+    test('Should update the flash support once settings are configured', function() {
+      sinon.assert.calledWith(this.app.on, 'settings:configured', this.controller.updateFlashSupport);
+    });
+
+    test('Should set \'camera\' to \'busy\' on view when busy', function() {
+      assert.ok(this.view.setter.calledWith('camera', 'busy'));
+      assert.ok(this.app.on.calledWith('busy'));
+    });
+
+    test('Should set \'camera\' to \'ready\' on view when ready', function() {
+      assert.ok(this.view.setter.calledWith('camera', 'ready'));
+      assert.ok(this.app.on.calledWith('ready'));
+    });
+
+    test('Should set \'countdown\' to \'active\' on view when started', function() {
+      assert.ok(this.view.setter.calledWith('countdown', 'active'));
+      assert.ok(this.app.on.calledWith('countdown:started'));
+    });
+
+    test('Should set \'countdown\' to \'inactive\' on view when countdown ended or cleared', function() {
+      assert.ok(this.view.setter.calledWith('countdown', 'inactive'));
+      assert.ok(this.app.on.calledWith('countdown:ended'));
+    });
+
+    test('Should set `recording` state on hud', function() {
+      assert.ok(this.view.setter.calledWith('recording'));
+      assert.ok(this.app.on.calledWith('change:recording'));
+    });
+
+    test('Should enable camera button depending on support', function() {
+      this.settings.cameras.get
+        .withArgs('options')
+        .returns(['back']);
+
+      sinon.assert.calledWith(this.view.enable, 'camera', false);
+
+      this.settings.cameras.get
+        .withArgs('options')
+        .returns(['back', 'front']);
+
+      this.controller = new this.HudController(this.app);
+      sinon.assert.calledWith(this.view.enable, 'camera', true);
+    });
+
+    test('Should disable flash initially until support is known', function() {
+      sinon.assert.calledWith(this.view.disable, 'flash');
+    });
+  });
+
+  suite('HudController#localize()', function() {
+    setup(function() {
+      this.controller.view = {
+        setFlashModeLabel: sinon.spy(),
+        setCameraLabel: sinon.spy(),
+        setMenuLabel: sinon.spy()
+      };
+    });
+
+    test('Should cycle to the next flash setting', function() {
+      this.controller.localize();
+      assert.ok(this.controller.view.setFlashModeLabel.called);
+      assert.ok(this.controller.view.setCameraLabel.called);
+      assert.ok(this.controller.view.setMenuLabel.called);
+    });
+  });
+
+  suite('HudController#onFlashClick()', function() {
+    setup(function() {
+      this.settings.hdr = {
+        selected: sinon.spy()
+      };
+    });
+
+    test('Should cycle to the next flash setting', function() {
+      this.controller.onFlashClick();
+      assert.ok(this.settings.flashModes.next.calledOnce);
+    });
+
+    test('Should set the new value on the hud view', function() {
+      this.settings.flashModes.selected.withArgs('key').returns('auto');
+      this.controller.onFlashClick();
+      assert.ok(this.view.set.calledWith('flashMode', 'auto'));
+    });
+
+    test('Should notify', function() {
+      sinon.spy(this.controller, 'notify');
+      this.controller.onFlashClick();
+      assert.ok(this.controller.notify.called);
+    });
+  });
+
+  suite('HudController#notify()', function() {
+    setup(function() {
+      this.settings.hdr = {
+        selected: sinon.spy()
+      };
+    });
+
+    test('Should display a notification', function() {
+      this.controller.onFlashClick();
+      assert.ok(this.notification.display.called);
+    });
+  });
+
+  suite('HudController#updateFlashMode()', function() {
+    setup(function() {
+      this.settings.flashModes = {
+        selected: sinon.spy()
+      };
+    });
+
+    test('Should update the flash mode', function() {
+      this.controller.updateFlashMode();
+      assert.ok(this.settings.flashModes.selected.called);
+    });
+  });
+
+  suite('HudController#updateCamera()', function() {
+    setup(function() {
+      this.settings.cameras = {
+        selected: sinon.spy()
+      };
+    });
+
+    test('Should update the camera', function() {
+      this.controller.updateCamera();
+      assert.ok(this.settings.cameras.selected.called);
+    });
+  });
+
+  suite('HudController#onCameraClick()', function() {
+    setup(function() {
+      this.callback = this.view.on.withArgs('click:camera').args[0][1];
+    });
+
+    test('Should clear notifications', function() {
+      this.callback();
+      sinon.assert.called(this.notification.clear);
+    });
+
+    test('Should call move to next available camera', function() {
+      this.callback();
+      sinon.assert.calledOnce(this.settings.cameras.next);
+    });
+
+    test('Should debounce (immediate) rapid button taps', function() {
+      this.callback();
+      sinon.assert.called(this.settings.cameras.next);
+      this.callback();
+      this.callback();
+      this.callback();
+      this.callback();
+      sinon.assert.calledOnce(this.settings.cameras.next);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/indicators_test.js

@@ -0,0 +1,100 @@
+suite('controllers/indicators', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'controllers/indicators',
+      'views/indicators',
+      'lib/setting',
+      'app'
+    ], function(IndicatorsController, IndicatorsView, Setting, App) {
+      self.IndicatorsController = IndicatorsController.IndicatorsController;
+      self.IndicatorsView = IndicatorsView;
+      self.Setting = Setting;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.settings = {
+      hdr: sinon.createStubInstance(this.Setting),
+      mode: sinon.createStubInstance(this.Setting),
+      countdown: sinon.createStubInstance(this.Setting),
+      indicators: sinon.createStubInstance(this.Setting)
+    };
+    this.app.views = {
+      indicators: sinon.createStubInstance(this.IndicatorsView)
+    };
+
+    // Shortcuts
+    this.view = this.app.views.indicators;
+    this.settings = this.app.settings;
+
+    // Return values
+    this.settings.hdr.selected.returns('on');
+    this.settings.countdown.selected.returns('on');
+    this.app.get.withArgs('batteryStatus').returns('healthy');
+
+    // Create our test instance
+    this.controller = new this.IndicatorsController(this.app);
+  });
+
+  suite('IndicatorsController()', function() {
+    test('Should bind settings change events', function() {
+      assert.ok(this.app.settings.countdown.on.calledWith('change:selected'));
+      assert.ok(this.app.settings.mode.on.calledWith('change:selected'));
+      assert.ok(this.app.settings.hdr.on.calledWith('change:selected'));
+      assert.ok(this.app.on.calledWith('change:batteryStatus'));
+      assert.ok(this.app.on.calledWith('settings:configured'));
+      assert.ok(this.app.on.calledWith('settings:opened'));
+      assert.ok(this.app.on.calledWith('settings:closed'));
+
+      assert.ok(this.app.on.calledWith('previewgallery:opened',
+        this.view.hide));
+      assert.ok(this.app.on.calledWith('previewgallery:closed',
+        this.view.show));
+    });
+
+    test('It sets the battery status initially', function() {
+      sinon.assert.calledWith(this.view.set, 'battery', 'healthy');
+    });
+
+    test('It sets hdr status initially', function() {
+      sinon.assert.calledWith(this.view.set, 'hdr', 'on');
+    });
+
+    test('It sets countdown status initially', function() {
+      sinon.assert.calledWith(this.view.set, 'countdown', 'on');
+    });
+
+    test('It reconfigures when the settings change', function() {
+      sinon.assert.calledWith(this.app.on, 'settings:configured', this.controller.configure);
+    });
+
+    test('It binds view setter for aria-hidden true', function() {
+      sinon.assert.calledWith(this.view.setter, 'ariaHidden', true);
+    });
+
+    test('It binds view setter for aria-hidden false', function() {
+      sinon.assert.calledWith(this.view.setter, 'ariaHidden', false);
+    });
+  });
+
+  suite('IndicatorsController#configure()', function() {
+    test('Should set the current \'hdr\' and \'countdown\' keys' +
+         'on the view', function() {
+      var view = this.app.views.indicators;
+
+      this.app.settings.indicators.get.returns(this.enabledValues);
+      this.controller = new this.IndicatorsController(this.app);
+      this.controller.configure();
+
+      assert.ok(view.set.calledWith('countdown', 'on'));
+      assert.ok(view.set.calledWith('hdr', 'on'));
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/media_test.js

@@ -0,0 +1,127 @@
+suite('controllers/media', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/media',
+      'lib/settings',
+    ], function(App, MediaController, Settings) {
+      self.MediaController =
+         MediaController.MediaController;
+      self.Settings = Settings;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.require = sinon.stub();
+    this.app.activity = {};
+    this.app.settings.previewGallery = {
+      get: sinon.spy()
+    };
+
+    // Our test instance
+    this.controller = new this.MediaController(this.app);
+  });
+
+  suite('MediaController()', function() {
+    setup(function() {
+      this.controller.settings = {
+        previewGallery: {
+          get: sinon.spy()
+        }
+      };
+
+      this.clock = sinon.useFakeTimers();
+    });
+
+    test('Should listen to the following events', function() {
+      assert.ok(this.app.on.calledWith('storage:itemdeleted'));
+      assert.ok(this.app.on.calledWith('storage:changed'));
+      assert.ok(this.app.on.calledWith('previewgallery:deletevideo'));
+      assert.ok(this.app.on.calledWith('previewgallery:deletepicture'));
+      assert.ok(this.app.on.calledWith('newmedia'));
+      assert.ok(this.app.on.calledWith('hidden'));
+      assert.ok(this.app.on.calledWith('lazyloaded'));
+    });
+
+    test('Check onNewMedia callback', function() {
+      var item = {
+        blob: {},
+        filepath: 'root/fileName',
+        isVideo: true
+      };
+
+      this.app.activity = {
+        active: false
+      };
+
+      this.controller.items.unshift = sinon.spy();
+      this.controller.updateThumbnail = sinon.spy();
+      this.controller.onNewMedia(item);
+      assert.ok(this.controller.items.unshift.called);
+      assert.ok(this.controller.updateThumbnail.called);
+    });
+
+    test('Should Check Storage Changed', function() {
+      var item = {
+        blob: {},
+        filepath: 'root/fileName',
+        isVideo: true
+      };
+
+      var data = {
+        path: 'root/fileName'
+      };
+
+      this.app.activity = {
+        active: false
+      };
+
+      this.controller.configure = sinon.spy();
+      this.controller.updateThumbnail = sinon.spy();
+      this.controller.onNewMedia(item);
+      this.controller.onStorageChanged('unavailable');
+      assert.ok(this.controller.configure.called);
+      assert.ok(this.controller.updateThumbnail.called);
+    });
+
+    test('Should Check the Item Deleted', function() {
+      var item = {
+        blob: {},
+        filepath: 'root/fileName',
+        isVideo: true
+      };
+
+      var data = {
+        path: 'root/fileName'
+      };
+
+      this.app.activity = {
+        active: false
+      };
+
+      this.controller.updateThumbnail = sinon.spy();
+      this.controller.updatePreviewGallery = sinon.spy();
+      this.controller.onNewMedia(item);
+      this.controller.onItemDeleted(data);
+      sinon.assert.calledWith(this.app.emit, 'media:deleted');
+    });
+
+    test('Should close the preview on blur if in \'secureMode\'', function() {
+      this.app.inSecureMode = true;
+      this.controller.closePreview = sinon.spy();
+      this.controller.configure = sinon.spy();
+      this.controller.updateThumbnail = sinon.spy();
+      this.controller.onHidden();
+      assert.ok(this.controller.configure.called);
+      assert.ok(this.controller.updateThumbnail.called);
+      sinon.assert.calledWith(this.app.emit, 'media:configured');
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/overlay_test.js

@@ -0,0 +1,141 @@
+/*jshint maxlen:false*/
+'use strict';
+
+suite('controllers/overlay', function() {
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/overlay',
+      'views/overlay'
+    ], function(App, controller, Overlay) {
+      self.Controller = controller;
+      self.Overlay = Overlay;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.activity = {
+      pick: false,
+      cancel: sinon.spy()
+    };
+    this.app.require = sinon.stub();
+    this.app.require.callsArgWith(1, this.Overlay);
+
+    this.controller = new this.Controller(this.app);
+  });
+
+  suite('OverlayController()', function() {
+    test('Should bind to events', function() {
+      assert.ok(this.app.on.calledWith('storage:changed'));
+      assert.ok(this.app.on.calledWith('change:batteryStatus'));
+      assert.ok(this.app.on.calledWith('camera:requesting'));
+      assert.ok(this.app.on.calledWith('camera:error'));
+    });
+  });
+
+  suite('OverlayController#onStorageChanged()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'updateOverlay');
+    });
+
+    test('Should *not* insert a new overlay', function() {
+      this.controller.onStorageChanged('available');
+      sinon.assert.calledWith(this.controller.updateOverlay, 'storage', false, 'available');
+    });
+
+    test('Should create overlay whenever the value is not \'available\'', function() {
+      this.controller.onStorageChanged('foo');
+      sinon.assert.calledWith(this.controller.updateOverlay, 'storage', true, 'foo');
+    });
+  });
+
+  suite('OverlayController#onBatteryChanged()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'updateOverlay');
+    });
+
+    test('Should create overlay if status is shutdown', function() {
+      this.controller.onBatteryChanged('shutdown');
+      sinon.assert.calledWith(this.controller.updateOverlay, 'battery', true, 'shutdown');
+    });
+
+    test('Should destroy overlay if previous is shutdown', function() {
+      this.controller.onBatteryChanged('foo');
+      sinon.assert.calledWith(this.controller.updateOverlay, 'battery', false, 'foo');
+    });
+  });
+
+  suite('OverlayController#onCameraRequesting()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'updateOverlay');
+    });
+
+    test('Should destroy overlay', function() {
+      this.controller.onCameraRequesting();
+      sinon.assert.calledWith(this.controller.updateOverlay, 'cameraError', false);
+    });
+  });
+
+  suite('OverlayController#onCameraError()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'updateOverlay');
+    });
+
+    test('Should create overlay', function() {
+      this.controller.onCameraError('foo');
+      sinon.assert.calledWith(this.controller.updateOverlay, 'cameraError', true, 'foo');
+    });
+  });
+
+  suite('OverlayController#updateOverlay()', function() {
+    setup(function() {
+      this.OverlayProto = this.Overlay.prototype;
+      sinon.spy(this.OverlayProto, 'initialize');
+      sinon.stub(this.OverlayProto, 'appendTo', function() { return this; });
+    });
+
+    teardown(function() {
+      this.OverlayProto.initialize.restore();
+      this.OverlayProto.appendTo.restore();
+    });
+
+    test('Should not insert overlay when key is unknown', function() {
+      this.controller.updateOverlay('storage', true, 'foobar');
+      assert.isFalse(this.OverlayProto.appendTo.called);
+    });
+
+    test('Should insert overlay when key is known', function() {
+      this.controller.updateOverlay('storage', true, 'unavailable');
+      assert.isTrue(this.OverlayProto.appendTo.called);
+    });
+
+    test('Should not be closable if type is \'request-fail\'', function() {
+      this.controller.updateOverlay('cameraError', true, 'request-fail');
+      assert.isFalse(this.OverlayProto.initialize.args[0][0].closable);
+
+      this.app.activity.pick = true;
+      this.controller.updateOverlay('cameraError', true, 'request-fail');
+      assert.isFalse(this.OverlayProto.initialize.args[0][0].closable);
+    });
+
+    test('Should not be closable if activity not pending', function() {
+      this.controller.updateOverlay('storage', true, 'unavailable');
+      assert.isFalse(this.OverlayProto.initialize.args[0][0].closable);
+    });
+
+    test('Should be closable only if activity is pending', function() {
+      this.app.activity.pick = true;
+      this.controller.updateOverlay('storage', true, 'unavailable');
+      assert.isTrue(this.OverlayProto.initialize.args[0][0].closable);
+    });
+
+    test('Should append the overlay to the body', function() {
+      this.controller.updateOverlay('storage', true, 'unavailable');
+      assert.isTrue(this.OverlayProto.appendTo.calledWith(document.body));
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/preview-gallery_test.js

@@ -0,0 +1,294 @@
+suite('controllers/preview-gallery', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/preview-gallery',
+      'lib/settings',
+      'views/preview-gallery',
+      'lib/storage',
+      'lib/orientation'
+    ], function(
+      App,PreviewGalleryController, Settings, PreviewGalleryView,
+      Storage, orientation) {
+      self.PreviewGalleryController =
+         PreviewGalleryController.PreviewGalleryController;
+      self.Settings = Settings;
+      self.PreviewGalleryView = PreviewGalleryView;
+      self.Storage = Storage;
+      self.App = App;
+      self.orientation = orientation;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.require = sinon.stub();
+    this.app.activity = {};
+
+    // Fake dialog calls the
+    // 'delete' callback sync.
+    this.app.dialog = {
+      show: function(title, msg, cancel, del) { del.callback(); },
+      hide: sinon.stub()
+    };
+
+    // Our test instance
+    this.previewGalleryController = new this.PreviewGalleryController(this.app);
+
+    // For convenience
+    this.camera = this.app.camera;
+    this.previewGallery = this.previewGalleryController.view;
+    this.controller = this.previewGalleryController;
+    this.storage = this.app.storage;
+    this.dialog = this.app.dialog;
+  });
+
+  suite('PreviewGalleryController()', function() {
+    setup(function() {
+      var MozActivity = function() {};
+      if (!window.MozActivity) {
+        window.MozActivity = MozActivity;
+      }
+      sinon.stub(window, 'MozActivity');
+
+      this.previewGalleryController.storage = {
+        deleteImage: sinon.spy(),
+        deleteVideo: sinon.spy(),
+        on: sinon.spy()
+      };
+
+      this.previewGalleryController.settings = {
+        activity: {
+          get: sinon.spy()
+        },
+      };
+
+      this.previewGalleryController.resizeImageAndSave =
+        function(options, done) {
+          done(options.blob);
+        };
+
+      this.app.require.callsArgWith(1,
+        this.previewGalleryController.resizeImageAndSave);
+
+      this.clock = sinon.useFakeTimers();
+    });
+
+    teardown(function() {
+      window.MozActivity.restore();
+    });
+
+    test('Should listen to the following events', function() {
+      this.previewGalleryController.bindEvents();
+
+      assert.ok(this.app.on.calledWith('preview', this.controller.openPreview));
+      assert.ok(this.app.on.calledWith('hidden', this.controller.closePreview));
+      assert.ok(this.app.on.calledWith('media:configured', this.controller.updatePreviewGallery));
+      assert.ok(this.app.on.calledWith('media:deleted', this.controller.updatePreviewGallery));
+    });
+
+    test('Should open the gallery app when gallery button is pressed',
+      function() {
+      this.previewGalleryController.onGalleryButtonClick();
+      var arg = window.MozActivity.args[0][0];
+
+      assert.ok(arg.name === 'browse');
+      assert.ok(arg.data.type === 'photos');
+    });
+
+    test('Should shareCurrentItem whose type is image', function() {
+      var item = {
+        blob: new Blob(['empty-image'], {'type': 'image/jpeg'}),
+        filepath: 'root/folder1/folder2/fileName',
+        isImage: true
+      };
+      this.previewGalleryController.items = [item];
+      this.previewGalleryController.currentItemIndex = 0;
+      this.previewGalleryController.shareCurrentItem();
+
+      assert.ok(this.app.emit.calledWith('busy', 'resizingImage'));
+
+      // Get first argument, of first call
+      var arg = window.MozActivity.args[0][0];
+
+      assert.ok(arg.name === 'share');
+      assert.ok(arg.data.type === 'image/*');
+      assert.ok(arg.data.number === 1);
+      assert.ok(arg.data.blobs[0] === item.blob);
+      assert.ok(arg.data.filenames[0] === 'fileName');
+      assert.ok(arg.data.filepaths[0] === item.filepath);
+    });
+
+    test('Should shareCurrentItem whose type is video', function() {
+      var item = {
+        blob: {},
+        filepath: 'root/folder1/folder2/fileName',
+        isVideo: true
+      };
+      this.previewGalleryController.items = [item];
+      this.previewGalleryController.currentItemIndex = 0;
+      this.previewGalleryController.shareCurrentItem();
+
+      // Get first argument, of first call
+      var arg = window.MozActivity.args[0][0];
+
+      assert.ok(arg.name === 'share');
+      assert.ok(arg.data.type === 'video/*');
+      assert.ok(arg.data.number === 1);
+      assert.ok(arg.data.blobs[0] === item.blob);
+      assert.ok(arg.data.filenames[0] === 'fileName');
+      assert.ok(arg.data.filepaths[0] === item.filepath);
+    });
+
+    suite('PreviewGalleryController#deleteCurrentItem()', function() {
+      setup(function() {
+
+      });
+
+      test('Should deleteCurrentItem which is image', function() {
+        var item = {
+          blob: {},
+          filepath: 'root/fileName',
+          isVideo: false
+        };
+
+        this.previewGalleryController.items = [item];
+        this.previewGalleryController.currentItemIndex = 0;
+        this.previewGalleryController.deleteCurrentItem();
+
+        assert.ok(this.app.emit.calledWith('previewgallery:deletepicture', 'root/fileName'));
+      });
+
+      test('Should deleteCurrentItem which is video', function() {
+        var item = {
+          blob: {},
+          filepath: 'root/fileName',
+          isVideo: true
+        };
+
+        this.previewGalleryController.items = [item];
+        this.previewGalleryController.currentItemIndex = 0;
+        this.previewGalleryController.deleteCurrentItem();
+
+        assert.ok(this.app.emit.calledWith('previewgallery:deletevideo', 'root/fileName'));
+      });
+    });
+
+    test('Should go to next image on handleSwipe(\'left\')', function() {
+      this.previewGalleryController.items = [1,2,3];
+      this.previewGalleryController.currentItemIndex = 1;
+      this.previewGalleryController.previewItem = sinon.spy();
+      this.previewGalleryController.handleSwipe('left');
+      assert.ok(this.previewGalleryController.previewItem.called);
+      assert.equal(this.previewGalleryController.currentItemIndex, 2);
+    });
+
+    test('Should go to previous image on handleSwipe(\'right\')', function() {
+      this.previewGalleryController.items = [1,2,3];
+      this.previewGalleryController.currentItemIndex = 1;
+      this.previewGalleryController.previewItem = sinon.spy();
+      this.previewGalleryController.handleSwipe('right');
+      assert.ok(this.previewGalleryController.previewItem.called);
+      assert.equal(this.previewGalleryController.currentItemIndex, 0);
+    });
+
+    test('Should not go to next image if there is not one', function() {
+      this.previewGalleryController.items = [1,2];
+      this.previewGalleryController.currentItemIndex = 1;
+      this.previewGalleryController.previewItem = sinon.spy();
+      this.previewGalleryController.handleSwipe('left');
+      assert.isFalse(this.previewGalleryController.previewItem.called);
+      assert.equal(this.previewGalleryController.currentItemIndex, 1);
+    });
+
+    test('Should not go to previous image if there is not one', function() {
+      this.previewGalleryController.items = [1,2];
+      this.previewGalleryController.currentItemIndex = 0;
+      this.previewGalleryController.previewItem = sinon.spy();
+      this.previewGalleryController.handleSwipe('right');
+      assert.isFalse(this.previewGalleryController.previewItem.called);
+      assert.equal(this.previewGalleryController.currentItemIndex, 0);
+    });
+  });
+
+  suite('PreviewGalleryController#openPreview()', function() {
+    setup(function() {
+      this.app.require.callsArgWith(1, this.PreviewGalleryView, sinon.stub());
+      sinon.stub(this.controller, 'previewItem');
+      this.controller.settings = {
+        activity: {
+          get: sinon.spy()
+        },
+        previewGallery: {
+          get: sinon.spy()
+        }
+      };
+    });
+
+    test('Should call previewItem', function() {
+      this.controller.openPreview();
+      assert.isTrue(this.controller.previewItem.called);
+    });
+
+    // XXX: this is really a view test, but we don't have tests for the view yet
+    test('Should lock and unlock orientation when opening and closing view',
+         function() {
+           this.orientation.unlock = sinon.spy();
+           this.orientation.lock = sinon.spy();
+           this.previewGalleryController.previewItem = sinon.spy();
+           this.previewGalleryController.openPreview();
+           assert.isTrue(this.orientation.unlock.called);
+           assert.isTrue(this.previewGalleryController.previewItem.called);
+           assert.isFalse(this.orientation.lock.called);
+           this.previewGalleryController.closePreview();
+           assert.isTrue(this.orientation.lock.called);
+         });
+
+    // XXX: this is really a view test, but we don't have tests for the view yet
+    test('Should add and remove a resize handler when opening and closing view',
+         function() {
+           var add = sinon.spy(window, 'addEventListener').withArgs('resize');
+           var remove =
+             sinon.spy(window, 'removeEventListener').withArgs('resize');
+           this.previewGalleryController.previewItem = sinon.spy();
+           this.previewGalleryController.openPreview();
+           assert.ok(add.calledTwice); // twice because VideoPlayer does too
+           this.previewGalleryController.closePreview();
+           assert.equal(remove.callCount, 1);
+         });
+  });
+
+  suite('PreviewGalleryController#closePreview()', function() {
+    setup(function() {
+      this.controller.view = new this.PreviewGalleryView();
+      this.previewGalleryView = this.controller.view;
+      this.controller.view.close = sinon.spy();
+      this.controller.view.destroy = sinon.spy();
+      this.controller.closePreview();
+    });
+
+    test('Should set `previewGalleryOpen` to `false` on app', function() {
+      assert.isTrue(this.previewGalleryView.close.called);
+      assert.isTrue(this.previewGalleryView.destroy.called);
+      assert.isTrue(this.controller.view === null);
+    });
+  });
+
+  suite('PreviewGalleryController#onPreviewOptionClick()', function() {
+    setup(function() {
+     this.controller.view = new this.PreviewGalleryView();
+     this.controller.view.showOptionsMenu = sinon.spy();
+     this.controller.onOptionsClick();
+    });
+
+    test('Should open previewOption on onPreviewOptionClick', function() {
+      assert.isTrue(this.controller.view.showOptionsMenu.called);
+    });
+  });
+
+});

gaia/apps/camera/test/unit/controllers/recording-timer_test.js

@@ -0,0 +1,84 @@
+'use strict';
+
+suite('controllers/recording-timer', function() {
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'app',
+      'controllers/recording-timer',
+      'views/recording-timer'
+    ], function(App, RecordingTimerController, RecordingTimerView) {
+      self.RecordingTimerController = RecordingTimerController.RecordingTimerController;
+      self.RecordingTimerView = RecordingTimerView;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.view = sinon.createStubInstance(this.RecordingTimerView);
+    this.app.el = {};
+
+    // Alias
+    this.view = this.app.view;
+
+    // Create out test instance
+    this.controller = new this.RecordingTimerController(this.app);
+  });
+
+  suite('RecordingTimerController()', function() {
+    test('Should respond to recording change', function() {
+      assert.isTrue(this.app.on.calledWith('change:recording'));
+    });
+
+    test('Should put the view in the DOM', function() {
+      assert.isTrue(this.view.appendTo.calledWith(this.app.el));
+    });
+
+    test('Should update the view value when the recording time changes', function() {
+      assert.isTrue(this.app.on.calledWith('camera:recorderTimeUpdate', this.view.value));
+    });
+  });
+
+  suite('RecordingTimerController#onRecordingChange()', function() {
+    test('Should hide the view if not recording', function() {
+      this.controller.onRecordingChange(false);
+      assert.isTrue(this.view.hide.called);
+    });
+
+    test('Should show and reset the view if recording', function() {
+      this.controller.onRecordingChange(true);
+      assert.isTrue(this.view.show.called);
+      assert.isTrue(this.view.value.calledWith(0));
+    });
+  });
+
+  suite('Accessibility Tests', function() {
+
+    var app,
+      view,
+      controller;
+
+    setup(function() {
+      app = sinon.createStubInstance(this.App);
+      app.view = new this.RecordingTimerView();
+      view = app.view;
+      controller = new this.RecordingTimerController(app);
+    });
+
+    test('Explicitly test for RecordingTimer visibility', function() {
+      // App is in its initialized state
+      assert.isFalse(view.el.classList.contains('visible'));
+
+      // Fire start recording event
+      controller.onRecordingChange(true);
+      assert.isTrue(view.el.classList.contains('visible'));
+
+      // Fire stop recording event
+      controller.onRecordingChange(false);
+      assert.isFalse(view.el.classList.contains('visible'));
+    });
+
+  });
+});

gaia/apps/camera/test/unit/controllers/settings_test.js

@@ -0,0 +1,504 @@
+suite('controllers/settings', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'controllers/settings',
+      'lib/settings',
+      'lib/setting',
+      'app',
+      'views/notification',
+      'views/settings'
+    ], function(
+      SettingsController, Settings, Setting,
+      App, NotificationViews, SettingsView) {
+      self.SettingsController = SettingsController.SettingsController;
+      self.NotificationViews = NotificationViews;
+      self.SettingsView = SettingsView;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    var self = this;
+
+    this.app = sinon.createStubInstance(this.App);
+    this.app.require = sinon.stub();
+    this.app.require.callsArgWith(1, this.SettingsView);
+
+    // Settings
+    this.app.el = {};
+    this.app.activity = { active: false };
+    this.app.formatPictureSizes = sinon.stub();
+    this.app.formatRecorderProfiles = sinon.stub();
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.mode = sinon.createStubInstance(this.Setting);
+    this.app.settings.pictureSizes = sinon.createStubInstance(this.Setting);
+    this.app.settings.pictureSizesFront = sinon.createStubInstance(this.Setting);
+    this.app.settings.pictureSizesBack = sinon.createStubInstance(this.Setting);
+    this.app.settings.recorderProfiles = sinon.createStubInstance(this.Setting);
+    this.app.settings.recorderProfilesFront = sinon.createStubInstance(this.Setting);
+    this.app.settings.recorderProfilesBack = sinon.createStubInstance(this.Setting);
+    this.app.settings.flashModesPicture = sinon.createStubInstance(this.Setting);
+    this.app.settings.flashModesVideo = sinon.createStubInstance(this.Setting);
+    this.app.settings.hdr = sinon.createStubInstance(this.Setting);
+    this.app.views = {
+      notification: sinon.createStubInstance(this.NotificationViews)
+    };
+
+    // SettingsView mock
+    this.app.SettingsView = sinon.spy(function() {
+      var view = sinon.createStubInstance(self.SettingsView);
+      view.render.returns(view);
+      view.appendTo.returns(view);
+      view.on.returns(view);
+      view.fadeOut.callsArg(0);
+      return view;
+    });
+
+    document.l10n = {
+      formatValue: key => {
+        return {
+          then(fn) { fn('LOCALIZED'); }
+        };
+      }
+    };
+
+    // Shortcut
+    this.notification = this.app.views.notification;
+    this.settings = this.app.settings;
+
+    // Create test instance
+    this.controller = new this.SettingsController(this.app);
+  });
+
+  teardown(function() {
+    delete document.l10n;
+  });
+
+  suite('SettingsController()', function() {
+    test('Should setup aliases for `recorderProfiles`, `pictureSizes` and `flashModes`', function() {
+      sinon.assert.calledThrice(this.settings.alias);
+    });
+
+    test('Should toggle the settings menu on \'settings:toggle\'', function() {
+      assert.isTrue(this.app.on.calledWith('settings:toggle', this.controller.toggleSettings));
+    });
+
+    test('Should update the settings when the camera hardware changes', function() {
+      assert.isTrue(this.app.on.calledWith('camera:newcamera', this.controller.onNewCamera));
+    });
+
+    test('Should format pictreSize titles when the app is localized', function() {
+      assert.isTrue(this.app.on.calledWith('localized', this.controller.formatPictureSizeTitles));
+    });
+
+    test('Should listen to \'camera:newcamera\'', function() {
+      assert.isTrue(this.app.on.calledWith('camera:newcamera', this.controller.onNewCamera));
+    });
+  });
+
+  suite('SettingsController#configurePictureSizes()', function() {
+    setup(function() {
+      this.pictureSizes = [];
+      this.exclude = ['480x320'];
+
+      this.app.formatPictureSizes.returns('formatted');
+
+      this.settings.pictureSizes.get
+        .withArgs('exclude')
+        .returns(this.exclude);
+
+      this.settings.pictureSizes.current = sinon.stub()
+        .returns(this.settings.pictureSizesBack);
+
+      document.l10n = {
+        formatValue: function(id, args) {
+          return Promise.resolve();
+        }
+      };
+
+      this.settings.pictureSizes.get
+        .withArgs('options')
+        .returns([]);
+
+      // Run it
+      this.controller.configurePictureSizes({
+        pictureSize: { height: 1536, width: 2048 },
+        capabilities: {
+          pictureSizes: this.pictureSizes
+        }
+      });
+    });
+
+    test('Should format the raw pictureSizes list', function() {
+      assert.isTrue(this.app.formatPictureSizes.calledWith(this.pictureSizes));
+    });
+
+    test('Should reset pictureSize options with formatted list', function() {
+      assert.isTrue(this.settings.pictureSizes.resetOptions.calledWith('formatted'));
+    });
+
+    test('Should pass the raw recorderProfiles into formatRecorderProfiles', function() {
+      var arg1 = this.app.formatPictureSizes.args[0][0];
+      assert.equal(arg1, this.pictureSizes);
+    });
+
+    test('Should pass the `exclude`', function() {
+      var options = this.app.formatPictureSizes.args[0][1];
+      assert.equal(options.exclude, this.exclude);
+    });
+  });
+
+  suite('SettingsController#configureRecorderProfiles()', function() {
+    setup(function() {
+      this.recorderProfiles = {};
+      this.formatted = ['1080p', '720p', '480p'];
+      this.exclude = ['1080p'];
+
+      this.newCamera = {
+        recorderProfile: '720p',
+        pictureSize: { height: 1536, width: 2048 },
+        capabilities: {
+          recorderProfiles: this.recorderProfiles
+        }
+      };
+
+      this.app.formatRecorderProfiles
+        .returns(this.formatted);
+
+      this.settings.recorderProfiles.get
+        .withArgs('exclude')
+        .returns(this.exclude);
+
+      this.settings.recorderProfiles.current = sinon.stub()
+        .returns(this.settings.recorderProfilesBack);
+
+      // Run it
+      this.controller.configureRecorderProfiles(this.newCamera);
+    });
+
+    test('Should format the raw recorderProfiles list', function() {
+      assert.isTrue(this.app.formatRecorderProfiles.calledWith(this.recorderProfiles));
+    });
+
+    test('Should reset recorderProfiles options with formatted list', function() {
+      var resetOptions = this.settings.recorderProfiles.resetOptions;
+      assert.isTrue(resetOptions.calledWith(this.formatted));
+    });
+
+    test('Should pass the raw recorderProfiles into formatRecorderProfiles', function() {
+      var arg1 = this.app.formatRecorderProfiles.args[0][0];
+      assert.equal(arg1, this.recorderProfiles);
+    });
+
+    test('Should pass `exclude` option to formatRecorderProfiles', function() {
+      var options = this.app.formatRecorderProfiles.args[0][1];
+      assert.equal(options.exclude, this.exclude);
+    });
+
+    test('Should pick the last formatted recorderProfile if `maxFileSize` is defined', function() {
+      this.settings.recorderProfiles.resetOptions.reset();
+
+      this.settings.recorderProfiles.get
+        .withArgs('maxFileSizeBytes')
+        .returns(100);
+
+      this.controller.configureRecorderProfiles(this.newCamera);
+      var arg = this.settings.recorderProfiles.resetOptions.args[0][0];
+
+      assert.deepEqual(arg, ['480p']);
+    });
+  });
+
+  suite('SettingsController#onOptionTap()', function() {
+    setup(function() {
+      this.setting = sinon.createStubInstance(this.Setting);
+      sinon.stub(this.controller, 'closeSettings').callsArg(0);
+      sinon.stub(this.controller, 'notify');
+    });
+
+    test('Should select the given key on the given option', function() {
+      this.controller.onOptionTap('the-key', this.setting);
+      assert.isTrue(this.setting.select.calledWith('the-key'));
+    });
+
+    test('Should close the settings menu', function() {
+      this.controller.onOptionTap('the-key', this.setting);
+      assert.isTrue(this.controller.closeSettings.called);
+    });
+
+    test('It shows a notification after the settings have closed', function() {
+      this.controller.onOptionTap('the-key', this.setting);
+      assert.isTrue(this.controller.notify.calledAfter(this.controller.closeSettings));
+    });
+  });
+
+  suite('SettingsController#notify()', function() {
+    setup(function() {
+      this.setting = sinon.createStubInstance(this.Setting);
+      this.setting.selected.withArgs('title').returns('l10n-key');
+    });
+
+    test('Should display a notification', function() {
+      this.controller.notify(this.setting);
+      assert.isTrue(this.notification.display.called);
+    });
+
+    test('Should not display a notification if flagged `false`', function() {
+      this.setting.get.withArgs('notifications').returns(false);
+      this.controller.notify(this.setting);
+      sinon.assert.notCalled(this.notification.display);
+    });
+  });
+
+  suite('SettingsController#validMenuItem()', function() {
+    test('Should return `true` if supported', function() {
+      var output;
+
+      this.app.settings.hdr.supported.returns(true);
+      output = this.controller.validMenuItem({ key: 'hdr' });
+      assert.isTrue(output);
+
+      this.app.settings.hdr.supported.returns(false);
+      output = this.controller.validMenuItem({ key: 'hdr' });
+      assert.isFalse(output);
+    });
+
+    test('Should cope with undefined settings', function() {
+      assert.isFalse(this.controller.validMenuItem({ key: 'fake' }));
+    });
+  });
+
+  suite('SettingsController#onNewCamera()', function() {
+    setup(function() {
+      this.newCamera = {
+        recorderProfile: '720p',
+        pictureSize: { height: 1536, width: 2048 },
+        capabilities: {
+          hdr: ['on', 'off'],
+          pictureSizes: [],
+          recorderProfiles: [],
+          flashModes: []
+        }
+      };
+
+      this.settings.pictureSizes.current = sinon.stub()
+        .returns(this.settings.pictureSizesBack);
+
+      this.settings.recorderProfiles.current = sinon.stub()
+        .returns(this.settings.recorderProfilesBack);
+
+      this.app.settings.pictureSizes.get.returns([]);
+      this.app.formatRecorderProfiles
+        .returns(['1080p', '720p', '480p' ]);
+    });
+
+    test('Should filter both \'picture\' and \'video\' flashModes', function() {
+      var picture = this.settings.flashModesPicture;
+      var video = this.settings.flashModesVideo;
+      var capabilities = this.newCamera.capabilities;
+
+      this.controller.onNewCamera(this.newCamera);
+
+      assert.ok(picture.filterOptions.calledWith(capabilities.flashModes));
+      assert.ok(video.filterOptions.calledWith(capabilities.flashModes));
+    });
+
+    test('Should filter hdr', function() {
+      var capabilities = this.newCamera.capabilities;
+      this.controller.onNewCamera(this.newCamera);
+      assert.ok(this.settings.hdr.filterOptions.calledWith(capabilities.hdr));
+    });
+
+    test('Should reset pictureSizes and recorderProfiles options', function() {
+      var recorderProfiles = this.settings.recorderProfiles;
+      var pictureSizes = this.settings.pictureSizes;
+
+      this.controller.onNewCamera(this.newCamera);
+
+      assert.ok(recorderProfiles.resetOptions.called);
+      assert.ok(pictureSizes.resetOptions.called);
+    });
+  });
+
+  suite('SettingsController#toggleSettings()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'closeSettings');
+      sinon.stub(this.controller, 'openSettings');
+    });
+
+    test('Should close the settings if a `view` is present', function() {
+      this.controller.view = 'defined';
+      this.controller.toggleSettings();
+      assert.isTrue(this.controller.closeSettings.called);
+    });
+
+    test('Should open the settings if a `view` is not present', function() {
+      this.controller.view = undefined;
+      this.controller.toggleSettings();
+      assert.isTrue(this.controller.openSettings.called);
+    });
+  });
+
+  suite('SettingsController#openSettings()', function() {
+    setup(function() {
+      this.menuItems = [];
+      sinon.stub(this.controller, 'menuItems').returns(this.menuItems);
+
+      // Call it
+      this.controller.openSettings();
+    });
+
+
+    test('Should create a new SettingsView passing menu items', function() {
+      var options = this.app.SettingsView.args[0][0];
+
+      assert.isTrue(this.app.SettingsView.called);
+      assert.equal(options.items, this.menuItems);
+    });
+
+    test('Should render and appendTo app.el', function() {
+      assert.isTrue(this.controller.view.render.called);
+      assert.isTrue(this.controller.view.appendTo.calledWith(this.app.el));
+    });
+
+    test('Should bind to `click:close` and `click:option` events', function() {
+      assert.isTrue(this.controller.view.on.calledWith('click:close'));
+      assert.isTrue(this.controller.view.on.calledWith('click:option'));
+    });
+
+    test('Should emit a `settings:open` event', function() {
+      assert.isTrue(this.app.emit.calledWith('settings:opened'));
+    });
+
+    test('Should not do anything if a view already exists', function() {
+      this.app.SettingsView.reset();
+      this.controller.view = 'defined';
+      this.controller.openSettings();
+      assert.isFalse(this.app.SettingsView.called);
+    });
+  });
+
+  suite('SettingsController#closeSettings()', function() {
+    setup(function() {
+      // Open settings first so we have a view
+      sinon.stub(this.controller, 'menuItems').returns(this.menuItems);
+      this.controller.openSettings();
+      this.view = this.controller.view;
+    });
+
+    test('Should not do anything if no view exists', function() {
+      this.controller.view = undefined;
+      this.controller.closeSettings();
+      assert.isFalse(this.app.emit.calledWith('settings:closed'));
+    });
+
+    test('Should destroy the view', function() {
+      this.controller.closeSettings();
+      assert.isTrue(this.view.destroy.called);
+    });
+
+    test('Should null out `view`', function() {
+      this.controller.closeSettings();
+      assert.equal(this.controller.view, null);
+    });
+  });
+
+  suite('SettingsController#formatPictureSizeTitles()', function() {
+    setup(function(done) {
+      this.options = [
+        {
+          key: '400x300',
+          data: {
+            mp: 0,
+            width: 400,
+            height: 300,
+            aspect: '4:3'
+          }
+        },
+        {
+          key: '1600x900',
+          data: {
+            mp: 1,
+            width: 1600,
+            height: 900,
+            aspect: '16:9'
+          }
+        },
+        {
+          key: '3200x1800',
+          data: {
+            mp: 6,
+            width: 3200,
+            height: 1800,
+            aspect: '16:9'
+          }
+        }
+      ];
+
+      this.settings.pictureSizes.get
+        .withArgs('options')
+        .returns(this.options);
+
+      document.l10n = {
+        formatValue: function(id, args) {
+          return Promise.resolve('MP');
+        }
+      };
+
+      // Call the test subject
+      this.controller.formatPictureSizeTitles().then(() => {
+        done();
+      });
+    });
+
+    test('Should include MP value for > 1MP', function() {
+      assert.isTrue(this.options[2].title.indexOf('6MP') > -1, this.options[2].title);
+      assert.isFalse(this.options[0].title.indexOf('MP') > -1, this.options[0].title);
+    });
+
+    test('Should include the resolution', function() {
+      assert.isTrue(this.options[0].title.indexOf('400x300') > -1);
+    });
+
+    test('Should use localized \'MP\' string', function() {
+      document.l10n = {
+        formatValue: function(id, args) {
+          return Promise.resolve('MP');
+        }
+      };
+
+      this.controller.formatPictureSizeTitles();
+      assert.isTrue(this.options[2].title.indexOf('MP') > -1, this.options[2].title);
+    });
+  });
+
+  suite('SettingsController#onPickActivity()', function() {
+    setup(function() {
+      this.onPickActivity = this.app.on.withArgs('activity:pick').args[0][1];
+    });
+
+    test('Should not save settings changes when in \'pick\' activity', function() {
+      this.onPickActivity({});
+      sinon.assert.called(this.settings.dontSave);
+    });
+
+    test('Should set maxPixelSize on pictureSizes settings', function() {
+      this.onPickActivity({ maxPixelSize: 100 });
+      sinon.assert.calledWith(this.settings.pictureSizesFront.set, 'maxPixelSize', 100);
+      sinon.assert.calledWith(this.settings.pictureSizesBack.set, 'maxPixelSize', 100);
+    });
+
+    test('Should set maxPixelSize on pictureSizes settings', function() {
+      this.onPickActivity({ maxFileSizeBytes: 100 });
+      sinon.assert.calledWith(this.settings.recorderProfilesFront.set, 'maxFileSizeBytes', 100);
+      sinon.assert.calledWith(this.settings.recorderProfilesBack.set, 'maxFileSizeBytes', 100);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/storage_test.js

@@ -0,0 +1,164 @@
+suite('controllers/storage', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'controllers/storage',
+      'lib/setting',
+      'lib/storage',
+      'app'
+    ], function(StorageController, Setting, Storage, App) {
+      self.StorageController = StorageController.StorageController;
+      self.Setting = Setting;
+      self.Storage = Storage;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.app = sinon.createStubInstance(this.App);
+    this.app.storage = sinon.createStubInstance(this.Storage);
+    this.app.storage.createVideoFilepath = 'test';
+    this.app.camera = {};
+    this.app.settings = {
+      pictureSizes: sinon.createStubInstance(this.Setting)
+    };
+
+    // Aliases
+    this.camera = this.app.camera;
+    this.settings = this.app.settings;
+    this.storage = this.app.storage;
+
+    this.settings.pictureSizes.selected
+      .withArgs('data')
+      .returns({ width: 400, height: 300 });
+
+    // Create a test instance
+    this.controller = new this.StorageController(this.app);
+  });
+
+  suite('StorageController()', function() {
+    test('Should set the camera `camera.createVideoFilepath`', function() {
+      assert.equal(this.camera.createVideoFilepath, 'test');
+    });
+
+    test('Should update maxFileSize when picture size changes', function() {
+      var on = this.settings.pictureSizes.on;
+      assert.isTrue(on.calledWith('change:selected', this.controller.updateMaxFileSize));
+    });
+
+    test('Should update maxFileSize when settings are configured', function() {
+      assert.isTrue(this.app.on.calledWith('settings:configured', this.controller.updateMaxFileSize));
+    });
+
+    test('Should delete a picture from storage when one is deleted from the preview gallery', function() {
+      assert.isTrue(this.app.on.calledWith('previewgallery:deletepicture', this.storage.deletePicture));
+    });
+
+    test('Should delete a video from storage when one is deleted from the preview gallery', function() {
+      assert.isTrue(this.app.on.calledWith('previewgallery:deletevideo', this.storage.deleteVideo));
+    });
+
+    test('Should media when the camera generates it', function() {
+      assert.isTrue(this.app.on.calledWith('camera:newimage', this.controller.storePicture));
+      assert.isTrue(this.app.on.calledWith('camera:newvideo', this.controller.storeVideo));
+    });
+
+    test('Should check storage when the app becomes visible', function() {
+      assert.isTrue(this.app.on.calledWith('visible', this.storage.check));
+    });
+
+    test('Should set the maxFileSize initially', function() {
+      assert.isTrue(this.storage.setMaxFileSize.calledOnce);
+    });
+
+    test('Should run an intitial storage check', function() {
+      this.storage.setMaxFileSize.restore();
+      this.controller = new this.StorageController(this.app);
+      assert.isTrue(this.storage.check.calledOnce);
+    });
+  });
+
+  suite('StorageController#storePicture()', function() {
+    setup(function() {
+      this.storage.addPicture.callsArgWith(1, null, '<filepath>', '<abspath>', '<file-blob>');
+
+      this.picture = { blob: '<memory-blob>' };
+      this.controller.storePicture(this.picture);
+    });
+
+    test('Should store the picture', function() {
+      assert.isTrue(this.storage.addPicture.calledWith('<memory-blob>'));
+    });
+
+    test('Should emit a `newmedia` app event', function() {
+      assert.isTrue(this.app.emit.calledWith('newmedia', this.picture));
+    });
+
+    test('Should switch the <memory-blob> with the <file-blob>', function() {
+      assert.equal(this.picture.blob, '<file-blob>');
+    });
+
+    test('Should store the <filepath>', function() {
+      assert.equal(this.picture.filepath, '<filepath>');
+    });
+  });
+
+  suite('StorageController#storeVideo()', function() {
+    setup(function() {
+      this.storage.addPicture.callsArgWith(2, null, '<filepath>', '<abspath>', '<file-blob>');
+
+      this.video = {
+        blob: '<file-blob>',
+        filepath: 'path/to/video.3gp',
+        poster: { blob: '<poster-memory-blob>' }
+      };
+
+      this.controller.storeVideo(this.video);
+    });
+
+    test('Should store the picture', function() {
+      assert.isTrue(this.storage.addPicture.calledWith('<poster-memory-blob>'));
+    });
+
+    test('Should store the poster image', function() {
+      var blob = this.storage.addPicture.args[0][0];
+      var options = this.storage.addPicture.args[0][1];
+
+      assert.equal(blob, '<poster-memory-blob>');
+      assert.equal(options.filepath, 'path/to/video.jpg');
+    });
+
+    test('Should emit a `newmedia` app event', function() {
+      assert.isTrue(this.app.emit.calledWith('newmedia', this.video));
+    });
+
+    test('Should switch the <poster-memory-blob> with the <file-blob>', function() {
+      assert.equal(this.video.poster.blob, '<file-blob>');
+    })
+
+    test('Should flag it as `isVideo`', function() {
+      assert.equal(this.video.isVideo, true);
+    });
+  });
+
+  suite('StorageController#updateMaxFileSize()', function() {
+    setup(function() {
+      // Reset calls in constructor
+      this.storage.setMaxFileSize.reset();
+    });
+
+    test('Should call `storage.setMaxFileSize` with picture file size estimate', function() {
+      this.settings.pictureSizes.selected.withArgs('data').returns({ width: 400, height: 300 });
+      this.controller.updateMaxFileSize();
+
+      var expected = (400 * 300 / 2) + 25000;
+      var bytes = this.storage.setMaxFileSize.args[0][0];
+
+      assert.equal(this.storage.setMaxFileSize.callCount, 1);
+      assert.equal(bytes, expected);
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/viewfinder_test.js

@@ -0,0 +1,360 @@
+'use strict';
+
+suite('controllers/viewfinder', function() {
+  suiteSetup(function(done) {
+    var self = this;
+
+    requirejs([
+      'app',
+      'lib/camera/camera',
+      'controllers/viewfinder',
+      'views/viewfinder',
+      'views/focus',
+      'views/faces',
+      'lib/settings',
+      'lib/setting'
+    ], function(
+      App, Camera, ViewfinderController, ViewfinderView,
+      FocusView, FacesView, Settings, Setting) {
+      self.ViewfinderController = ViewfinderController.ViewfinderController;
+      self.ViewfinderView = ViewfinderView;
+      self.FocusView = FocusView;
+      self.FacesView = FacesView;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      self.Camera = Camera;
+      self.App = App;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+
+    // App
+    this.app = sinon.createStubInstance(this.App);
+    this.app.camera = sinon.createStubInstance(this.Camera);
+    this.app.activity = {};
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.grid = sinon.createStubInstance(this.Setting);
+    this.app.views = {
+      viewfinder: sinon.createStubInstance(this.ViewfinderView),
+      focus: sinon.createStubInstance(this.FocusView),
+      faces: sinon.createStubInstance(this.FacesView)
+    };
+    this.app.Pinch = sinon.stub();
+    this.app.Pinch.prototype.on = sinon.stub();
+
+    // Fake elements
+    this.app.views.viewfinder.els = { video: {} };
+
+    // Settings
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.grid = sinon.createStubInstance(this.Setting);
+    this.app.settings.viewfinder = sinon.createStubInstance(this.Setting);
+    this.app.settings.cameras = sinon.createStubInstance(this.Setting);
+    this.app.settings.zoom = sinon.createStubInstance(this.Setting);
+
+    // Default return values
+    this.app.settings.viewfinder.get.withArgs('scaleType').returns('fill');
+    this.app.settings.grid.selected.withArgs('key').returns('off');
+
+    // Test instance
+    this.controller = new this.ViewfinderController(this.app);
+
+    // Shortcuts
+    this.viewfinder = this.controller.views.viewfinder;
+    this.focusRing = this.controller.views.focus;
+    this.faces = this.controller.views.faces;
+    this.focus = this.controller.views.focus;
+    this.settings = this.app.settings;
+    this.camera = this.app.camera;
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('ViewfinderController()', function() {
+    test('Should stop the stream when the PreviewGallery is opened', function() {
+      assert.isTrue(this.app.on.calledWith('previewgallery:opened',
+        this.controller.onGalleryOpened));
+    });
+
+    test('Should start the stream when the PreviewGallery is closed', function() {
+      assert.isTrue(this.app.on.calledWith('previewgallery:closed',
+        this.controller.onGalleryClosed));
+    });
+
+    test('Should stop the stream preview is false', function() {
+      assert.isTrue(this.app.on.calledWith('camera:previewactive', this.controller.onPreviewActive));
+    });
+
+    test('Should hide the grid when the settings menu opened', function() {
+      assert.isTrue(this.app.on.calledWith('settings:opened',
+        this.controller.onSettingsOpened));
+    });
+
+    test('Should show the grid again when the settings menu is closed', function() {
+      assert.isTrue(this.app.on.calledWith('settings:closed',
+        this.controller.onSettingsClosed));
+    });
+
+    test('Should flash viewfinder shutter when camera shutter fires', function() {
+      assert.isTrue(this.app.on.calledWith('camera:shutter', this.viewfinder.shutter));
+    });
+
+    test('Should respond to `zoomchanged` event', function() {
+      assert.isTrue(this.camera.on.calledWith('zoomchanged'));
+    });
+
+    test('Should should set the foucsRing state when focus changes', function() {
+      assert.isTrue(this.app.on.calledWith('camera:focusstatechanged', this.focusRing.setFocusState));
+    });
+
+    test('Should set the scaleType on the view', function() {
+      assert.equal(this.viewfinder.scaleType, 'fill');
+    });
+
+    test('Should set grid on/off', function() {
+      assert.isTrue(this.viewfinder.set.calledWith('grid', 'off'));
+      this.app.settings.grid.selected.withArgs('key').returns('on');
+      this.viewfinder.set.reset();
+
+      this.controller = new this.ViewfinderController(this.app);
+      assert.isTrue(this.viewfinder.set.calledWith('grid', 'on'));
+    });
+  });
+
+  suite('ViewfinderController#createViews()', function() {
+    setup(function() {
+      this.controller.createViews();
+    });
+
+    test('It appends views to the viewfinder views', function() {
+      assert.isTrue(this.focus.appendTo.calledWith(this.viewfinder.el));
+      assert.isTrue(this.faces.appendTo.calledWith(this.viewfinder.el));
+      assert.isTrue(this.viewfinder.appendTo.calledWith(this.app.el));
+    });
+  });
+
+  suite('ViewfinderController#show()', function() {
+    setup(function() {
+      this.sandbox.stub(window, 'clearTimeout');
+      this.sandbox.stub(window, 'setTimeout').returns('<timeout-id>');
+      this.app.criticalPathDone = true;
+    });
+
+    test('It fades the viewfinder in straight away if the critical path is incomplete', function() {
+      this.app.criticalPathDone = false;
+      this.controller.show();
+      sinon.assert.called(this.viewfinder.fadeIn);
+      sinon.assert.notCalled(window.setTimeout);
+    });
+
+    test('It fades the viewfinder in after 280ms timeout to avoid flicker', function() {
+      this.controller.show();
+      sinon.assert.calledWith(window.setTimeout, this.viewfinder.fadeIn, 280);
+    });
+
+    test('It clears any existing timeouts to avoid multiple scheduled timeouts', function() {
+      this.controller.show();
+      this.controller.show();
+      sinon.assert.calledWith(window.clearTimeout, '<timeout-id>');
+    });
+  });
+
+  suite('ViewfinderController#hide()', function() {
+    setup(function() {
+      this.sandbox.stub(window, 'setTimeout').returns('<timeout-id>');
+      this.sandbox.stub(window, 'clearTimeout');
+    });
+
+    test('It fades out the viewfinder', function() {
+      this.controller.hide();
+      sinon.assert.called(this.viewfinder.fadeOut);
+    });
+
+    test('It clears any fadeTimeout hanging around', function() {
+      this.controller.show();
+      this.controller.hide();
+      sinon.assert.called(window.clearTimeout, '<timeout-id>');
+    });
+  });
+
+  suite('ViewfinderController#loadStream()', function() {
+    test('Should load preview stream into viewfinder video element', function() {
+      var video = this.viewfinder.els.video;
+      this.controller.loadStream();
+      assert.isTrue(this.camera.loadStreamInto.calledWith(video));
+    });
+  });
+
+  suite('ViewfinderController#configurePreview()', function() {
+    setup(function() {
+      this.settings.cameras.selected.withArgs('key').returns('back');
+      this.camera.getSensorAngle.returns(90);
+      this.camera.previewSize.returns({ width: 400, height: 300 });
+    });
+
+    test('Should pass current previewSize', function() {
+      this.controller.configurePreview();
+      var previewSize = this.viewfinder.updatePreview.args[0][0];
+      assert.deepEqual(previewSize, { width: 400, height: 300 });
+    });
+
+    test('Should pass the sensor angle', function() {
+      this.controller.configurePreview();
+      var arg = this.viewfinder.updatePreview.args[0][1];
+      assert.equal(arg, 90);
+    });
+
+    test('Should indicate if selected camera is front', function() {
+      var arg;
+
+      // Back
+      this.controller.configurePreview();
+      arg = this.viewfinder.updatePreview.args[0][2];
+      assert.equal(arg, false);
+      this.viewfinder.updatePreview.reset();
+
+      // Front
+      this.settings.cameras.selected.withArgs('key').returns('front');
+      this.controller.configurePreview();
+      arg = this.viewfinder.updatePreview.args[0][2];
+      assert.equal(arg, true);
+    });
+  });
+
+  suite('ViewfinderController#onZoomConfigured()', function() {
+    setup(function() {
+      this.camera.isZoomSupported.returns(true);
+      this.settings.zoom.enabled.returns(true);
+
+      this.camera.getMinimumZoom.returns(0);
+      this.camera.getMaximumZoom.returns(3);
+    });
+
+    test('Should call enableZoom on the viewfinder', function() {
+      this.controller.onZoomConfigured();
+      assert.isTrue(this.viewfinder.enableZoom.calledWith(0, 3));
+    });
+
+    test('Should disable zoom if camera doesn\'t support zoom', function() {
+      this.camera.isZoomSupported.returns(false);
+
+      this.controller.onZoomConfigured();
+      assert.isTrue(this.viewfinder.disableZoom.called);
+    });
+
+    test('Should disable zoom if zoom disabled in settings', function() {
+      this.settings.zoom.enabled.returns(false);
+
+      this.controller.onZoomConfigured();
+      assert.isTrue(this.viewfinder.disableZoom.called);
+    });
+  });
+
+  suite('ViewfinderController#onSettingsOpened()', function() {
+    setup(function() {
+      sinon.spy(this.controller, 'hideGrid');
+      this.controller.onSettingsOpened();
+    });
+
+    test('Hide grid and hide viewfinder view from the screen reader',
+      function() {
+        sinon.assert.called(this.controller.hideGrid);
+        assert.isTrue(this.viewfinder.set.calledWith('ariaHidden', true));
+      });
+  });
+
+  suite('ViewfinderController#onSettingsClosed()', function() {
+    setup(function() {
+      sinon.spy(this.controller, 'configureGrid');
+      this.controller.onSettingsClosed();
+    });
+
+    test('Configure grid and show viewfinder view to the screen reader',
+      function() {
+        sinon.assert.called(this.controller.configureGrid);
+        assert.isTrue(this.viewfinder.set.calledWith('ariaHidden', false));
+      });
+  });
+
+  suite('ViewfinderController#onGalleryOpened()', function() {
+    setup(function() {
+      this.controller.onGalleryOpened();
+    });
+
+    test('When gallery is open, the viewfinder view should be disabled and ' +
+      'hidden from screen reader', function() {
+      sinon.assert.called(this.viewfinder.disable);
+      assert.isTrue(this.viewfinder.set.calledWith('ariaHidden', true));
+    });
+  });
+
+  suite('ViewfinderController#onGalleryClosed()', function() {
+    setup(function() {
+      this.controller.onGalleryClosed();
+    });
+
+    test('When gallery is closed, the viewfinder view should be enabled and ' +
+      'visible to screen reader', function() {
+      sinon.assert.called(this.viewfinder.enable);
+      assert.isTrue(this.viewfinder.set.calledWith('ariaHidden', false));
+    });
+  });
+
+  suite('ViewfinderController#onPowerSave', function() {
+    test('When power save enabled, the viewfinder should disable screen ' +
+      'wakelocks', function() {
+      this.controller.onPowerSave(false);
+      assert.isTrue(this.viewfinder.els.video.mozUseScreenWakeLock);
+    });
+
+    test('When power save disabled, the viewfinder should enable screen ' +
+      'wakelocks', function() {
+      this.controller.onPowerSave(true);
+      assert.isFalse(this.viewfinder.els.video.mozUseScreenWakeLock);
+    });
+  });
+
+  suite('click:viewfinder', function() {
+    test('Should set the grid depending on the setting', function() {
+      this.app.settings.grid.selected.withArgs('key').returns('on');
+      this.controller = new this.ViewfinderController(this.app);
+      assert.isTrue(this.viewfinder.set.calledWith('grid', 'on'));
+
+      this.app.settings.grid.selected.withArgs('key').returns('off');
+      this.controller = new this.ViewfinderController(this.app);
+      assert.isTrue(this.viewfinder.set.calledWith('grid', 'off'));
+    });
+
+    test('Should set viewfinder fill depending on the setting', function() {
+      this.app.settings.viewfinder.get.withArgs('scaleType').returns('fill');
+      this.controller = new this.ViewfinderController(this.app);
+      assert.equal(this.viewfinder.scaleType, 'fill');
+
+      this.app.settings.viewfinder.get.withArgs('scaleType').returns('fit');
+      this.controller = new this.ViewfinderController(this.app);
+      assert.equal(this.viewfinder.scaleType, 'fit');
+    });
+  });
+
+  suite('ViewfinderController#calculateFaceCircle()', function() {
+    test('Draw circle from a square', function() {
+      var circle = this.controller.calculateFaceCircle({top: 50, left: 50, width: 10, height: 10});
+      assert.deepEqual(circle, {x: 50, y: 50, diameter: 10});
+    });
+
+    test('Draw circle from a 2:1 rectangle', function() {
+      var circle = this.controller.calculateFaceCircle({top: 100, left: 50, width: 20, height: 10});
+      assert.deepEqual(circle, {x: 50, y: 95, diameter: 20});
+    });
+
+    test('Draw circle from a 1:2 rectangle', function() {
+      var circle = this.controller.calculateFaceCircle({top: 100, left: 50, width: 10, height: 20});
+      assert.deepEqual(circle, {x: 45, y: 100, diameter: 20});
+    });
+  });
+});

gaia/apps/camera/test/unit/controllers/zoom-bar_test.js

@@ -0,0 +1,135 @@
+'use strict';
+
+suite('controllers/zoom-bar', function() {
+  suiteSetup(function(done) {
+    var self = this;
+
+    requirejs([
+      'app',
+      'lib/camera/camera',
+      'lib/settings',
+      'lib/setting',
+      'controllers/zoom-bar',
+      'views/zoom-bar'
+    ], function(
+      App, Camera, Settings, Setting, ZoomBarController, ZoomBarView) {
+      self.ZoomBarController = ZoomBarController.ZoomBarController;
+      self.ZoomBarView = ZoomBarView;
+      self.Camera = Camera;
+      self.App = App;
+      self.Settings = Settings;
+      self.Setting = Setting;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+
+    // App
+    this.app = sinon.createStubInstance(this.App);
+    this.app.camera = sinon.createStubInstance(this.Camera);
+    this.app.views = {
+      zoombar: sinon.createStubInstance(this.ZoomBarView)
+    };
+
+    // Settings
+    this.app.settings = sinon.createStubInstance(this.Settings);
+    this.app.settings.zoom = sinon.createStubInstance(this.Setting);
+
+    // Test instance
+    this.controller = new this.ZoomBarController(this.app);
+
+    // Shortcuts
+    this.zoombar = this.controller.view;
+    this.camera = this.app.camera;
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('ViewfinderController()', function() {
+    test('Should configure zoom when zoomconfigured event is emitted', function() {
+      assert.isTrue(this.camera.on.calledWith('zoomconfigured',
+        this.controller.onZoomConfigured));
+    });
+
+    test('Should set the zoom when zoomchanged event is emitted', function() {
+      assert.isTrue(this.camera.on.calledWith('zoomchanged',
+        this.controller.setZoom));
+    });
+  });
+
+  suite('ViewfinderController#createViews()', function() {
+    setup(function() {
+      this.controller.createView();
+    });
+
+    test('It appends view', function() {
+      assert.isTrue(this.zoombar.appendTo.calledWith(this.zoombar.el));
+    });
+  });
+
+  suite('ZoomBar#onChange()', function() {
+    setup(function() {
+      this.camera.getMaximumZoom.returns(10);
+      this.camera.getMinimumZoom.returns(1);
+      this.controller.onChange(5);
+    });
+
+    test('It calls setZoom with the correct value', function() {
+      assert.isTrue(this.camera.setZoom.calledWith(1.45));
+    });
+  });
+
+  suite('ZoomBar#onZoomConfigured()', function() {
+    setup(function() {
+      sinon.stub(this.controller, 'configureZoomBar');
+      sinon.stub(this.controller, 'setZoom');
+      this.controller.onZoomConfigured(5);
+    });
+
+    test('It sets zoom and hides', function() {
+      assert.isTrue(this.controller.configureZoomBar.calledOnce);
+      assert.isTrue(this.controller.setZoom.calledWith(5));
+      assert.isTrue(this.zoombar.hide.called);
+    });
+  });
+
+  suite('ZoomBar#configureZoomBar()', function() {
+    test('It disables zoom if not supported by camera', function() {
+      this.camera.isZoomSupported.returns(false);
+      this.app.settings.zoom.enabled.returns(true);
+      this.controller.configureZoomBar();
+      assert.isFalse(this.controller.enableZoom);
+    });
+
+    test('It enables zoom if supported by camera', function() {
+      this.camera.isZoomSupported.returns(true);
+      this.app.settings.zoom.enabled.returns(true);
+      this.controller.configureZoomBar();
+      assert.isTrue(this.controller.enableZoom);
+    });
+  });
+
+  suite('ZoomBar#setZoom()', function() {
+    setup(function() {
+      this.camera.getMaximumZoom.returns(11);
+      this.camera.getMinimumZoom.returns(1);
+    });
+
+    test('It sets the zoom with the correct value if enabled', function() {
+      this.controller.enableZoom = true;
+      this.controller.setZoom(4);
+      assert.isTrue(this.zoombar.setValue.calledWith(30));
+    });
+
+    test('It does not set the zoom if disabled', function() {
+      this.controller.enableZoom = false;
+      this.controller.setZoom(4);
+      assert.isFalse(this.zoombar.setValue.calledWith(30));
+    });
+  });
+
+});

gaia/apps/camera/test/unit/lib/camera-coordinates_test.js

@@ -0,0 +1,658 @@
+suite('lib/camera-coordinates', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['lib/camera-coordinates'], function(cameraCoordinates) {
+      // alias
+      self.faceToCamera = cameraCoordinates.faceToCamera;
+      self.faceToPixels = cameraCoordinates.faceToPixels;
+      self.areaToCamera = cameraCoordinates.private.areaToCamera;
+      self.areaToPixels = cameraCoordinates.private.areaToPixels;
+      self.mirrorAreaCamera = cameraCoordinates.private.mirrorAreaCamera;
+      self.mirrorAreaPixels = cameraCoordinates.private.mirrorAreaPixels;
+      self.rotateArea = cameraCoordinates.private.rotateArea;
+      self.sizeToCamera = cameraCoordinates.private.sizeToCamera;
+      self.sizeToPixels = cameraCoordinates.private.sizeToPixels;
+      self.toCamera = cameraCoordinates.private.toCamera;
+      self.toPixels = cameraCoordinates.private.toPixels;
+      self.rotatePoint = cameraCoordinates.private.rotatePoint;
+
+      self.equalAreas = function(area1, area2) {
+        var equal = area1.top === area2.top &&
+        area1.left === area2.left &&
+        area1.bottom === area2.bottom &&
+        area1.right === area2.right &&
+        area1.width === area2.width &&
+        area1.height === area2.height;
+        if (!equal) {
+          console.log('Areas are not equal: ' +
+          JSON.stringify(area1) + ' /= ' + JSON.stringify(area2));
+        }
+        return equal;
+      };
+      done();
+    });
+    this.viewportWidth = 800;
+    this.viewportHeight = 600;
+  });
+
+  suite('#faceToCamera', function() {
+    suite('The face should be converted from pixel coordinates to camera and back to pixels', function() {
+
+      test('face is at the center of the viewport', function() {
+        var face = {
+          top: 200,
+          left: 300,
+          bottom: 400,
+          right: 600,
+          height: 200,
+          width: 300
+        };
+        var faceCameraCoordinates = this.faceToCamera(face, this.viewportWidth, this.viewportHeight, 0);
+        var facePixelCooordinates = this.faceToPixels(faceCameraCoordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, facePixelCooordinates));
+      });
+
+      test('face is at the top left quadrant of the viewport', function() {
+        var face = {
+          top: 0,
+          left: 0,
+          bottom: 230,
+          right: 230,
+          height: 230,
+          width: 230
+        };
+        var faceCameraCoordinates = this.faceToCamera(face, this.viewportWidth, this.viewportHeight, 0);
+        var facePixelCooordinates = this.faceToPixels(faceCameraCoordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, facePixelCooordinates));
+      });
+
+      test('face is at the top right quadrant of the viewport', function() {
+        var face = {
+          top: 50,
+          left: 500,
+          bottom: 80,
+          right: 530,
+          height: 30,
+          width: 30
+        };
+        var faceCameraCoordinates = this.faceToCamera(face, this.viewportWidth, this.viewportHeight, 0);
+        var facePixelCooordinates = this.faceToPixels(faceCameraCoordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, facePixelCooordinates));
+      });
+
+      test('face is at the bottom left quadrant of the viewport', function() {
+        var face = {
+          top: 400,
+          left: 200,
+          bottom: 475,
+          right: 275,
+          height: 75,
+          width: 75
+        };
+        var faceCameraCoordinates = this.faceToCamera(face, this.viewportWidth, this.viewportHeight, 0);
+        var facePixelCooordinates = this.faceToPixels(faceCameraCoordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, facePixelCooordinates));
+      });
+
+      test('face is at the bottom right quadrant of the viewport', function() {
+        var face = {
+          top: 400,
+          left: 500,
+          bottom: 500,
+          right: 600,
+          height: 100,
+          width: 100
+        };
+        var faceCameraCoordinates = this.faceToCamera(face, this.viewportWidth, this.viewportHeight, 0);
+        var facePixelCooordinates = this.faceToPixels(faceCameraCoordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, facePixelCooordinates));
+      });
+
+    });
+  });
+
+  suite('#faceToPixels', function() {
+    suite('The face should be converted from camera to pixel coordinates and back to camera coordinates', function() {
+
+      test('face is at the center of the viewport', function() {
+        // var face = {
+        //   top: -25,
+        //   left: -25,
+        //   bottom: 25,
+        //   right: 25,
+        //   height: 50,
+        //   width: 50
+        // };
+        var face = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var facePixelCooordinates = this.faceToPixels(face, this.viewportWidth, this.viewportHeight, 0);
+        var faceCameraCoordinates = this.faceToCamera(facePixelCooordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, faceCameraCoordinates));
+      });
+
+      test('face is at the top left quadrant of the viewport', function() {
+        var face = {
+          top: -1000,
+          left: -1000,
+          bottom: -950,
+          right: -950,
+          height: 50,
+          width: 50
+        };
+        var facePixelCooordinates = this.faceToPixels(face, this.viewportWidth, this.viewportHeight, 0);
+        var faceCameraCoordinates = this.faceToCamera(facePixelCooordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, faceCameraCoordinates));
+      });
+
+      test('face is at the top right quadrant of the viewport', function() {
+        var face = {
+          top: -500,
+          left: 500,
+          bottom: -450,
+          right: 550,
+          height: 50,
+          width: 50
+        };
+        var facePixelCooordinates = this.faceToPixels(face, this.viewportWidth, this.viewportHeight, 0);
+        var faceCameraCoordinates = this.faceToCamera(facePixelCooordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, faceCameraCoordinates));
+      });
+
+      test('face is at the bottom left quadrant of the viewport', function() {
+        var face = {
+          top: 500,
+          left: -500,
+          bottom: 550,
+          right: -450,
+          height: 50,
+          width: 50
+        };
+        var facePixelCooordinates = this.faceToPixels(face, this.viewportWidth, this.viewportHeight, 0);
+        var faceCameraCoordinates = this.faceToCamera(facePixelCooordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, faceCameraCoordinates));
+      });
+
+      test('face is at the bottom right quadrant of the viewport', function() {
+        var face = {
+          top: 500,
+          left: 500,
+          bottom: 550,
+          right: 550,
+          height: 50,
+          width: 50
+        };
+        var facePixelCooordinates = this.faceToPixels(face, this.viewportWidth, this.viewportHeight, 0);
+        var faceCameraCoordinates = this.faceToCamera(facePixelCooordinates, this.viewportWidth, this.viewportHeight, 0);
+        assert.ok(this.equalAreas(face, faceCameraCoordinates));
+      });
+
+    });
+  });
+
+  suite('#areaToCamera', function() {
+    suite('The area should be converted from pixel coordinates to camera and back to pixels', function() {
+
+      test('area is at the center of the viewport', function() {
+        var area = {
+          top: 200,
+          left: 300,
+          bottom: 400,
+          right: 600,
+          height: 200,
+          width: 300
+        };
+        var areaCamera = this.areaToCamera(area, this.viewportWidth, this.viewportHeight);
+        var areaPixels = this.areaToPixels(areaCamera, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaPixels));
+      });
+
+      test('area is at the top left quadrant of the viewport', function() {
+        var area = {
+          top: 0,
+          left: 0,
+          bottom: 230,
+          right: 230,
+          height: 230,
+          width: 230
+        };
+        var areaCamera = this.areaToCamera(area, this.viewportWidth, this.viewportHeight);
+        var areaPixels = this.areaToPixels(areaCamera, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaPixels));
+      });
+
+      test('area is at the top right quadrant of the viewport', function() {
+        var area = {
+          top: 50,
+          left: 500,
+          bottom: 80,
+          right: 530,
+          height: 30,
+          width: 30
+        };
+        var areaCamera = this.areaToCamera(area, this.viewportWidth, this.viewportHeight);
+        var areaPixels = this.areaToPixels(areaCamera, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaPixels));
+      });
+
+      test('area is at the bottom left quadrant of the viewport', function() {
+        var area = {
+          top: 400,
+          left: 200,
+          bottom: 475,
+          right: 275,
+          height: 75,
+          width: 75
+        };
+        var areaCamera = this.areaToCamera(area, this.viewportWidth, this.viewportHeight);
+        var areaPixels = this.areaToPixels(areaCamera, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaPixels));
+      });
+
+      test('area is at the bottom right quadrant of the viewport', function() {
+        var area = {
+          top: 400,
+          left: 500,
+          bottom: 500,
+          right: 600,
+          height: 100,
+          width: 100
+        };
+        var areaCamera = this.areaToCamera(area, this.viewportWidth, this.viewportHeight);
+        var areaPixels = this.areaToPixels(areaCamera, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaPixels));
+      });
+
+    });
+  });
+
+  suite('#areaToPixels', function() {
+    suite('The area should be converted from camera to pixel coordinates and back to camera coordinates', function() {
+      test('area is at the center of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var areaPixels = this.areaToPixels(area, this.viewportWidth, this.viewportHeight);
+        var areaCamera = this.areaToCamera(areaPixels, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaCamera));
+      });
+
+      test('area is at the top left quadrant of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var areaPixels = this.areaToPixels(area, this.viewportWidth, this.viewportHeight);
+        var areaCamera = this.areaToCamera(areaPixels, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaCamera));
+      });
+
+      test('area is at the top right quadrant of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var areaPixels = this.areaToPixels(area, this.viewportWidth, this.viewportHeight);
+        var areaCamera = this.areaToCamera(areaPixels, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaCamera));
+      });
+
+      test('area is at the bottom left quadrant of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var areaPixels = this.areaToPixels(area, this.viewportWidth, this.viewportHeight);
+        var areaCamera = this.areaToCamera(areaPixels, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaCamera));
+      });
+
+      test('area is at the bottom right quadrant of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var areaPixels = this.areaToPixels(area, this.viewportWidth, this.viewportHeight);
+        var areaCamera = this.areaToCamera(areaPixels, this.viewportWidth, this.viewportHeight);
+        assert.ok(this.equalAreas(area, areaCamera));
+      });
+
+    });
+  });
+
+  suite('#mirrorAreaCamera', function() {
+    suite('The area should be properly mirrored', function() {
+      test('area is at the center of the viewport', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var mirroredArea = this.mirrorAreaCamera(area);
+        var doubledMirrorArea = this.mirrorAreaCamera(mirroredArea);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+
+      test('area is at the top left quadrant of the viewport', function() {
+        var area = {
+          top: -100,
+          left: -100,
+          bottom: -50,
+          right: -50,
+          height: 50,
+          width: 50
+        };
+        var mirroredArea = this.mirrorAreaCamera(area);
+        var doubledMirrorArea = this.mirrorAreaCamera(mirroredArea);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+
+      test('area is at the top right quadrant of the viewport', function() {
+        var area = {
+          top: -100,
+          left: 300,
+          bottom: -50,
+          right: 350,
+          height: 50,
+          width: 50
+        };
+        var mirroredArea = this.mirrorAreaCamera(area);
+        var doubledMirrorArea = this.mirrorAreaCamera(mirroredArea);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+
+      test('area is at the bottom left quadrant of the viewport', function() {
+        var area = {
+          top: 100,
+          left: -200,
+          bottom: 200,
+          right: -100,
+          height: 100,
+          width: 100
+        };
+        var mirroredArea = this.mirrorAreaCamera(area);
+        var doubledMirrorArea = this.mirrorAreaCamera(mirroredArea);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+
+      test('area is at the bottom right quadrant of the viewport', function() {
+        var area = {
+          top: 800,
+          left: 800,
+          bottom: 900,
+          right: 900,
+          height: 100,
+          width: 100
+        };
+        var mirroredArea = this.mirrorAreaCamera(area);
+        var doubledMirrorArea = this.mirrorAreaCamera(mirroredArea);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+
+    });
+  });
+
+  suite('#mirrorAreaPixels', function() {
+    suite('The area should be properly mirrored', function() {
+      test('area is at the center of the viewport', function() {
+        var area = {
+          top: 100,
+          left: 300,
+          bottom: 200,
+          right: 400,
+          height: 100,
+          width: 100
+        };
+        var mirroredArea = this.mirrorAreaPixels(area, this.viewportWidth);
+        var doubledMirrorArea = this.mirrorAreaPixels(mirroredArea, this.viewportWidth);
+        assert.ok(this.equalAreas(area, doubledMirrorArea));
+      });
+    });
+  });
+
+  suite('#rotateArea', function() {
+    suite('The area should be properly rotated', function() {
+      test('area rotates 0 degrees', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var expectedResult = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var rotatedArea = this.rotateArea(area, 0);
+        assert.ok(this.equalAreas(rotatedArea, expectedResult));
+      });
+
+      test('area rotates 90 degrees', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var expectedResult = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var rotatedArea = this.rotateArea(area, 90);
+        assert.ok(this.equalAreas(rotatedArea, expectedResult));
+      });
+
+      test('area rotates 180 degrees', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var expectedResult = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var rotatedArea = this.rotateArea(area, 180);
+        assert.ok(this.equalAreas(rotatedArea, expectedResult));
+      });
+
+      test('area rotates 270 degrees', function() {
+        var area = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var expectedResult = {
+          top: -50,
+          left: -50,
+          bottom: 50,
+          right: 50,
+          height: 100,
+          width: 100
+        };
+        var rotatedArea = this.rotateArea(area, 270);
+        assert.ok(this.equalAreas(rotatedArea, expectedResult));
+      });
+
+    });
+  });
+
+  suite('#sizeToCamera', function() {
+    test('The size should be converted from pixels to camera coordinates and back to pixels', function() {
+      var width = 50;
+      var height = 100;
+      var sizeCamera = this.sizeToCamera(width, height, this.viewportWidth, this.viewportHeight);
+      var sizePixels = this.sizeToPixels(sizeCamera.width, sizeCamera.height, this.viewportWidth, this.viewportHeight);
+      assert.ok(sizePixels.width === width);
+      assert.ok(sizePixels.height === height);
+    });
+  });
+
+  suite('#sizeToPixels', function() {
+    test('The size should be converted from camera coordinates to pixels and back to camera', function() {
+      var width = 50;
+      var height = 100;
+      var sizePixels = this.sizeToPixels(width, height, this.viewportWidth, this.viewportHeight);
+      var sizeCamera = this.sizeToCamera(sizePixels.width, sizePixels.height, this.viewportWidth, this.viewportHeight);
+      assert.ok(sizeCamera.width === width);
+      assert.ok(sizeCamera.height === height);
+    });
+  });
+
+  suite('#toCamera', function() {
+    test('The coordinate should be transformed from pixels to camera coordinates', function() {
+      var x = 50;
+      var y = 100;
+      var camera = this.toCamera(x, y, this.viewportWidth, this.viewportHeight);
+      var pixels = this.toPixels(camera.x, camera.y, this.viewportWidth, this.viewportHeight);
+      assert.ok(pixels.x === x);
+      assert.ok(pixels.y === y);
+    });
+  });
+
+  suite('#toPixels', function() {
+    test('The coordinate should be transformed from camera coordinates to pixels', function() {
+      var x = 50;
+      var y = 100;
+      var pixels = this.toPixels(x, y, this.viewportWidth, this.viewportHeight);
+      var camera = this.toCamera(pixels.x, pixels.y, this.viewportWidth, this.viewportHeight);
+      assert.ok(camera.x === x);
+      assert.ok(camera.y === y);
+    });
+  });
+
+  suite('#rotatePoint', function() {
+    test('The point coordinates should rotate 0 degrees', function() {
+      var x = 50;
+      var y = 100;
+      var point = this.rotatePoint(x, y, 0);
+      assert.ok(x === point.x);
+      assert.ok(y === point.y);
+    });
+
+    test('The point coordinates should rotate 90 degrees', function() {
+      var x = 760;
+      var y = 134;
+      var point = this.rotatePoint(x, y, 90);
+      assert.ok(x === point.y);
+      assert.ok(y === -point.x);
+    });
+
+    test('The point coordinates should rotate 180 degrees', function() {
+      var x = 34;
+      var y = 100;
+      var point = this.rotatePoint(x, y, 180);
+      assert.ok(x === -point.x);
+      assert.ok(y === -point.y);
+    });
+
+    test('The point coordinates should rotate 270 degrees', function() {
+      var x = 200;
+      var y = 200;
+      var point = this.rotatePoint(x, y, 270);
+      assert.ok(x === -point.y);
+      assert.ok(y === point.x);
+    });
+
+    test('Angle should be clamped to 0 degrees', function() {
+      var x = 0;
+      var y = 240;
+      var point1 = this.rotatePoint(x, y, 0);
+      var point2 = this.rotatePoint(x, y, -20);
+      assert.ok(point1.x === point2.x);
+      assert.ok(point1.y === point2.y);
+    });
+
+    test('Angle should be clamped to 90 degrees', function() {
+      var x = 123;
+      var y = -321;
+      var point1 = this.rotatePoint(x, y, 90);
+      var point2 = this.rotatePoint(x, y, -260);
+      assert.ok(point1.x === point2.x);
+      assert.ok(point1.y === point2.y);
+    });
+
+    test('Angle should be clamped to 90 degrees', function() {
+      var x = 123;
+      var y = 321;
+      var point1 = this.rotatePoint(x, y, 90);
+      var point2 = this.rotatePoint(x, y, 123);
+      assert.ok(point1.x === point2.x);
+      assert.ok(point1.y === point2.y);
+    });
+
+    test('Angle should be clamped to 180 degrees', function() {
+      var x = -100;
+      var y = 100;
+      var point1 = this.rotatePoint(x, y, 180);
+      var point2 = this.rotatePoint(x, y, 140);
+      assert.ok(point1.x === point2.x);
+      assert.ok(point1.y === point2.y);
+    });
+
+    test('Angle should be clamped to 270 degrees', function() {
+      var x = -500;
+      var y = -500;
+      var point1 = this.rotatePoint(x, y, 230);
+      var point2 = this.rotatePoint(x, y, 270);
+      assert.ok(point1.x === point2.x);
+      assert.ok(point1.y === point2.y);
+    });
+
+  });
+
+});

gaia/apps/camera/test/unit/lib/camera-utils_test.js

@@ -0,0 +1,235 @@
+/*jshint maxlen:false*/
+/*global req*/
+'use strict';
+
+suite('utils/camera-utils', function() {
+  var CameraUtils;
+
+  suiteSetup(function(done) {
+    var self = this;
+
+    this.modules = {};
+
+    requirejs([
+      'lib/camera-utils'
+    ], function(_CameraUtils) {
+      CameraUtils = self.modules.CameraUtils = _CameraUtils;
+
+      done();
+    });
+  });
+
+  setup(function() {
+
+  });
+
+  suite('scaleSizeToFitViewport', function() {
+    setup(function() {
+
+    });
+
+    test('Should scale image size to *FIT* viewport ' +
+         'preserving aspect ratio', function() {
+      var viewportSize, imageSize, outputSize;
+
+      // Case where image size exactly matches viewport size
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 720,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has larger width, smaller height than viewport
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 800,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1152);
+
+      // Case where image size has larger height, smaller width than viewport
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 720,
+        height: 1440
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 640);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has larger width, larger height than viewport
+      // (different aspect ratio)
+      viewportSize = {
+        width: 600,
+        height: 800
+      };
+      imageSize = {
+        width: 720,
+        height: 1152
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 500);
+      assert.equal(outputSize.height, 800);
+
+      // Case where image size has larger width, larger height than viewport
+      // (same aspect ratio)
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 1080,
+        height: 1920
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has smaller width, smaller height than viewport
+      // (different aspect ratio)
+      viewportSize = {
+        width: 720,
+        height: 1152
+      };
+      imageSize = {
+        width: 600,
+        height: 800
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 960);
+
+      // Case where image size has smaller width, smaller height than viewport
+      // (same aspect ratio)
+      viewportSize = {
+        width: 1080,
+        height: 1920
+      };
+      imageSize = {
+        width: 720,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFitViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 1080);
+      assert.equal(outputSize.height, 1920);
+    });
+  });
+
+  suite('scaleSizeToFillViewport', function() {
+    setup(function() {});
+
+    test('Should scale image size to *FILL* viewport ' +
+         'preserving aspect ratio', function() {
+      var viewportSize, imageSize, outputSize;
+
+      // Case where image size exactly matches viewport size
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 720,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has larger width, smaller height than viewport
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 800,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 800);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has larger height, smaller width than viewport
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 720,
+        height: 1440
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1440);
+
+      // Case where image size has larger width, larger height than viewport
+      // (different aspect ratio)
+      viewportSize = {
+        width: 600,
+        height: 800
+      };
+      imageSize = {
+        width: 720,
+        height: 1152
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 600);
+      assert.equal(outputSize.height, 960);
+
+      // Case where image size has larger width, larger height than viewport
+      // (same aspect ratio)
+      viewportSize = {
+        width: 720,
+        height: 1280
+      };
+      imageSize = {
+        width: 1080,
+        height: 1920
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 720);
+      assert.equal(outputSize.height, 1280);
+
+      // Case where image size has smaller width, smaller height than viewport
+      // (different aspect ratio)
+      viewportSize = {
+        width: 720,
+        height: 1152
+      };
+      imageSize = {
+        width: 600,
+        height: 800
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 864);
+      assert.equal(outputSize.height, 1152);
+
+      // Case where image size has smaller width, smaller height than viewport
+      // (same aspect ratio)
+      viewportSize = {
+        width: 1080,
+        height: 1920
+      };
+      imageSize = {
+        width: 720,
+        height: 1280
+      };
+      outputSize = CameraUtils.scaleSizeToFillViewport(viewportSize, imageSize);
+      assert.equal(outputSize.width, 1080);
+      assert.equal(outputSize.height, 1920);
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/camera/focus_test.js

@@ -0,0 +1,677 @@
+suite('lib/camera/focus', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['lib/camera/focus'], function(Focus) {
+      self.Focus = Focus;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+
+    // Fake mozCamera
+    this.mozCamera = {
+      _listeners: {},
+      capabilities: {
+        focusModes : ["auto", "infinity", "normal",
+          "macro", "continuous-picture", "continuous-video" ],
+      },
+      autoFocus: sinon.stub().returns({
+        then: function(onSuccess, onError) {
+          onSuccess(true);
+        }
+      }),
+      setFocusAreas: sinon.stub(),
+      setMeteringAreas: sinon.stub(),
+      stopContinuousFocus: sinon.stub(),
+      resumeContinuousFocus: sinon.stub(),
+      startFaceDetection: sinon.spy(),
+      stopFaceDetection: sinon.spy(),
+      addEventListener: function(eventname, listener) {
+        this._listeners[eventname] = listener;
+      },
+      removeEventListener: function(eventname, listener) {
+        if (this._listeners.hasOwnProperty(eventname)) {
+          if (this._listeners[eventname] === listener) {
+            delete this._listeners[eventname];
+          }
+        }
+      }
+    };
+
+    this.focus = new this.Focus({});
+    this.focus.mozCamera = this.mozCamera;
+  });
+
+  suite('Focus#configure()', function() {
+    setup(function() {
+      this.focus.configureFocusModes = sinon.spy();
+    });
+
+    test('mozCamera should be assigned \'auto\' mode by default', function() {
+      this.focus.configure(this.mozCamera);
+      assert.ok(this.focus.configureFocusModes.called);
+      assert.equal(this.mozCamera.focusMode, 'auto');
+    });
+
+    test('user preferences override defaults', function() {
+      this.focus.continuousAutoFocus = false;
+      this.focus.configure(this.mozCamera, 'continuous-picture');
+      assert.ok(this.focus.configureFocusModes.called);
+      assert.equal(this.mozCamera.focusMode, 'auto');
+    });
+
+    test('continuous-picture selected on picture mode if user pref is set to CAF', function() {
+      this.focus.continuousAutoFocus = true;
+      this.focus.configure(this.mozCamera, 'picture');
+      assert.ok(this.focus.configureFocusModes.called);
+      assert.equal(this.mozCamera.focusMode, 'continuous-picture');
+    });
+
+    test('continuous-video selected on video mode if user pref is set to CAF', function() {
+      this.focus.continuousAutoFocus = true;
+      this.focus.configure(this.mozCamera, 'video');
+      assert.ok(this.focus.configureFocusModes.called);
+      assert.equal(this.mozCamera.focusMode, 'continuous-video');
+    });
+
+    test('if not valid focus mode is passed the first available is picked', function() {
+      this.focus.configure(this.mozCamera, 'invalid-focus-mode');
+      assert.ok(this.focus.configureFocusModes.called);
+      assert.equal(this.mozCamera.focusMode, 'auto');
+    });
+
+  });
+
+  suite('Focus#getMode', function() {
+    setup(function() {
+      this.mozCamera.focusMode = 'auto';
+    });
+
+    test('it returns the current focus mode', function() {
+      this.focus.startFaceDetection();
+      assert.ok(this.focus.getMode() === 'auto');
+    });
+
+    test('it returns the suspended focus mode', function() {
+      this.mozCamera.focusMode  = 'continuous-picture';
+      assert.ok(this.focus.getMode() === 'continuous-picture');
+    });
+  });
+
+  suite('Focus#configureFocusModes()', function() {
+    setup(function() {
+      var userPreferences = {
+        touchFocus: true,
+        faceDetection: false
+      };
+
+      this.focus = new this.Focus(userPreferences);
+      this.focus.mozCamera = this.mozCamera;
+      this.sandbox.stub(this.focus, 'isTouchFocusSupported');
+      this.sandbox.stub(this.focus, 'isFaceDetectionSupported');
+      this.sandbox.stub(this.focus, 'startFaceDetection');
+      this.focus.isTouchFocusSupported.returns(true);
+      this.focus.isFaceDetectionSupported.returns(true);
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('continous autofocus is enabled by default if supported', function() {
+      this.focus.configureFocusModes();
+      assert.equal(this.focus.continuousAutoFocus, true);
+    });
+
+    test('continous autofocus is disabled if user preferences desable it', function() {
+      this.focus.userPreferences.continuousAutoFocus = false;
+      this.focus.configureFocusModes();
+      assert.equal(this.focus.continuousAutoFocus, false);
+    });
+
+    test('touch to focus is enabled by default if available', function() {
+      this.focus.configureFocusModes();
+      assert.equal(this.focus.touchFocus, true);
+    });
+
+    test('touch to focus is disabled if user preferences disable it', function() {
+      this.focus.userPreferences.touchFocus = false;
+      this.focus.configureFocusModes();
+      assert.equal(this.focus.touchFocus, false);
+    });
+
+    test('touch to focus is disabled if hardware doesn\'t support it', function() {
+      this.focus.isTouchFocusSupported.returns(false);
+      this.focus.configureFocusModes();
+      assert.equal(this.focus.touchFocus, false);
+    });
+
+    test('touch to focus disabled if hardware doesn\'t support it and even if user preferences enable it', function() {
+      this.focus.userPreferences.touchFocus = true;
+      this.focus.isTouchFocusSupported.returns(false);
+      this.focus.configureFocusModes('picture');
+      assert.equal(this.focus.touchFocus, false);
+    });
+
+    test('face detection is disabled if not supported by HW', function() {
+      this.focus.userPreferences.faceDetection = true;
+      this.focus.isFaceDetectionSupported.returns(false);
+      this.focus.configureFocusModes('picture');
+      assert.ok(!this.focus.faceDetection);
+    });
+
+    test('face detection is disabled if disabled in user preferences', function() {
+      this.focus.userPreferences.faceDetection = false;
+      this.focus.isFaceDetectionSupported.returns(true);
+      this.focus.configureFocusModes('picture');
+      assert.ok(!this.focus.faceDetection);
+    });
+
+    test('face detection is disabled in video mode', function() {
+      this.focus.userPreferences.faceDetection = true;
+      this.focus.isFaceDetectionSupported.returns(true);
+      this.focus.configureFocusModes('video');
+      assert.ok(!this.focus.faceDetection);
+    });
+
+    test('face detection is enabled in picture mode if supported by HW and enabled in user preferences', function() {
+      this.focus.userPreferences.faceDetection = true;
+      this.focus.isFaceDetectionSupported.returns(true);
+      this.focus.configureFocusModes('picture');
+      assert.ok(this.focus.faceDetection);
+    });
+
+  });
+
+  suite('Focus#startFaceDetection', function() {
+    setup(function() {
+      this.focus.faceDetection = true;
+    });
+
+    test('mozCamera startFaceDetection is called to start face detection if face detection enabled', function() {
+      this.focus.startFaceDetection();
+      assert.ok(this.mozCamera.startFaceDetection.called);
+    });
+
+    test('mozCamera startFaceDetection is not called to start face detection if face detection disabled', function() {
+      this.focus.faceDetection = false;
+      this.focus.startFaceDetection();
+      assert.ok(!this.mozCamera.startFaceDetection.called);
+    });
+
+  });
+
+  suite('Focus#clearFaceDetection', function() {
+    setup(function() {
+      this.focus.faceDetection = true;
+      this.sandbox.spy(this.focus, 'focusOnLargestFace');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('focusOnLargestFace is called to start face detection if face detection enabled', function() {
+      this.focus.clearFaceDetection();
+      assert.ok(this.focus.focusOnLargestFace.calledWith([]));
+    });
+
+    test('focusOnLargestFace is called with empty list when clearing faces', function() {
+      this.focus.faceDetection = false;
+      this.focus.clearFaceDetection();
+      assert.ok(this.focus.focusOnLargestFace.calledWith([]));
+    });
+
+  });
+
+  suite('Focus#stopFaceDetection', function() {
+    setup(function() {
+      this.focus.faceDetection = true;
+      this.focus.mozCamera = this.mozCamera;
+      this.sandbox.spy(this.focus, 'stopFaceDetection');
+      this.sandbox.spy(this.focus, 'clearFaceDetection');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('mozCamera stopFaceDetection is called to stop face detection', function() {
+      this.focus.stopFaceDetection();
+      assert.ok(this.mozCamera.stopFaceDetection.called);
+    });
+
+    test('mozCamera stopFaceDetection is not called if face detection is not available', function() {
+      this.mozCamera.stopFaceDetection = false;
+      this.focus.stopFaceDetection();
+      assert.ok(!this.mozCamera.stopFaceDetection.called);
+      assert.ok(this.focus.clearFaceDetection.called);
+    });
+
+  });
+
+  suite('Focus#suspendFaceDetection', function() {
+    setup(function() {
+      this.clock = sinon.useFakeTimers();
+      this.focus.faceDetection = true;
+      this.focus.faceDetectionSuspended = undefined;
+      this.focus.faceFocused = true;
+    });
+
+    teardown(function() {
+      this.clock.restore();
+    });
+
+    test('mozCamera suspendFaceDetection resets timers', function() {
+      this.focus.suspendFaceDetection(500, 300);
+      this.clock.tick(500);
+      assert.ok(this.focus.faceDetectionSuspended);
+      this.clock.tick(300);
+      assert.ok(!this.focus.faceFocused);
+    });
+  });
+
+  suite('Focus#resumeContinuousFocus', function() {
+    setup(function() {
+      this.focus.mozCamera = this.mozCamera;
+      this.focus.previousMode = 'auto';
+      this.mozCamera.focusMode = 'continuous-picture';
+    });
+
+    test('mozCamera resumeContinuousFocus is called', function() {
+      this.focus.resumeContinuousFocus();
+      assert.ok(!this.focus.suspendedMode);
+      assert.ok(this.focus.mozCamera.resumeContinuousFocus.called);
+    });
+  });
+
+  suite('Focus#onfocus', function() {
+    setup(function() {
+      this.sandbox.spy(this.focus, 'updateFocusState');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('should call updateFocusState', function() {
+      this.focus.configureFocusModes();
+      var listener = this.mozCamera._listeners['focus'];
+      assert.ok(listener);
+      listener({ newState: 'focusing' });
+      assert.ok(this.focus.updateFocusState.calledWith('focusing'));
+      listener({ newState: 'focused' });
+      assert.ok(this.focus.updateFocusState.calledWith('focused'));
+      listener({ newState: 'unfocused' });
+      assert.ok(this.focus.updateFocusState.calledWith('fail'));
+    });
+  });
+
+  suite('Focus#updateFocusState', function() {
+    setup(function() {
+      this.sandbox.spy(this.focus, 'onAutoFocusChanged');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('should call onAutoFocusChanged', function() {
+      this.focus.focusState = 'focused';
+      this.focus.updateFocusState('focusing');
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      this.focus.updateFocusState('focused');
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focused'));
+      this.focus.updateFocusState('focusing');
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      this.focus.updateFocusState('fail');
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('fail'));
+    });
+
+    test('should not call onAutoFocusChanged', function() {
+      this.focus.focusState = 'focused';
+      this.focus.updateFocusState('focused');
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+      this.focus.updateFocusState('fail');
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+      this.focus.focusState = 'focusing';
+      this.focus.updateFocusState('focusing');
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+    });
+  });
+
+  suite('Focus#suspendContinuousFocus', function() {
+    setup(function() {
+      this.clock = sinon.useFakeTimers();
+      this.focus.mozCamera = this.mozCamera;
+      this.sandbox.spy(this.focus, 'resumeContinuousFocus');
+      this.focus.continuousModeTimer = undefined;
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+      this.clock.restore();
+    });
+
+    test('mozCamera resumeContinuousFocus is called', function() {
+      this.focus.suspendContinuousFocus(500);
+      assert.ok(this.focus.continuousModeTimer !== undefined);
+      this.clock.tick(500);
+      assert.ok(this.focus.resumeContinuousFocus.called);
+    });
+  });
+
+  suite('Focus#focusOnLargestFace', function() {
+    setup(function() {
+      this.sandbox.spy(this.focus, 'onFacesDetected');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('it should not focus on any face if face detection is suspended', function() {
+      this.focus.touchFocus = true;
+      this.focus.faceDetectionSuspended = true;
+      this.focus.focusOnLargestFace([{
+        id: 3,
+        score: 80,
+        bounds: {
+          height: 300,
+          width: 300
+        }
+      }]);
+      assert.ok(this.focus.onFacesDetected.calledWith([]));
+    });
+
+    test('it should focus on the singleton face', function() {
+      this.focus.touchFocus = true;
+      this.focus.faceDetectionSuspended = false;
+      var face = {
+        id: 3,
+        score: 80,
+        bounds: {
+          height: 300,
+          width: 300
+        }
+      };
+      this.focus.focusOnLargestFace([face]);
+      assert.ok(
+        Object.is(this.focus.onFacesDetected.firstCall.args[0][0], face)
+      );
+    });
+
+    test('it should focus on the singleton face (event)', function() {
+      this.focus.touchFocus = true;
+      this.focus.faceDetectionSuspended = false;
+      var face = {
+        id: 3,
+        score: 80,
+        bounds: {
+          height: 300,
+          width: 300
+        }
+      };
+      var event = { faces: [face] };
+      this.focus.handleFaceDetectionEvent(event);
+      assert.ok(
+        Object.is(this.focus.onFacesDetected.firstCall.args[0][0], face)
+      );
+    });
+  });
+
+  suite('Focus#focus()', function() {
+    setup(function() {
+      this.focus.focusMode = 'auto';
+      this.focus.onAutoFocusChanged = sinon.spy();
+    });
+
+    test('mozCamera autoFocus is called if focus mode is auto', function() {
+      this.mozCamera.focusMode = 'auto';
+      this.focus.focus(function() {});
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      assert.ok(this.mozCamera.autoFocus.called);
+    });
+
+    test('mozCamera autoFocus is called if focus mode is continuous-picture', function() {
+      this.mozCamera.focusMode = 'continuous-picture';
+      this.focus.focus(function() {});
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      assert.ok(this.mozCamera.autoFocus.called);
+    });
+
+    test('mozCamera autoFocus is not called if focus mode is neither auto nor continuous-picture', function() {
+      this.mozCamera.focusMode = 'infinity';
+      this.focus.focus(function() {});
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+      assert.ok(!this.mozCamera.autoFocus.called);
+    });
+
+    test('mozCamera autoFocus callback is called with error and focus state switches to false', function() {
+      var onFocused = sinon.spy();
+      this.mozCamera.autoFocus = sinon.stub();
+      this.mozCamera.focusMode = 'auto';
+      this.mozCamera.autoFocus.returns({
+        then: function(resolve, reject) {
+          resolve(false);
+        }
+      });
+      this.focus.focus(onFocused);
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      assert.ok(this.mozCamera.autoFocus.called);
+      assert.ok(onFocused.calledWith('failed'));
+      assert.ok(!this.focus.focused);
+    });
+
+    test('mozCamera autoFocus callback is called with success and focus state switches to true', function() {
+      var onFocused = sinon.spy();
+      this.mozCamera.autoFocus = sinon.stub();
+      this.mozCamera.focusMode = 'auto';
+      this.mozCamera.autoFocus.returns({
+        then: function(resolve, reject) {
+          resolve(true);
+        }
+      });
+      this.focus.focus(onFocused);
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      assert.ok(this.mozCamera.autoFocus.called);
+      assert.ok(onFocused.calledWith('focused'));
+      assert.ok(this.focus.focused);
+    });
+
+    test('with focus mode different than auto or continuous-picture callback is called with no arguments and focus state doesn\'t change', function(done) {
+      var onFocused = function(result) {
+        assert.equal(result, undefined);
+        done();
+      };
+      var previousFocusState;
+      this.focus.focused = true;
+      previousFocusState = this.focus.focused;
+      this.mozCamera.autoFocus = sinon.stub();
+      this.mozCamera.focusMode = 'infinity';
+      this.focus.focus(onFocused);
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+      assert.ok(!this.mozCamera.autoFocus.called);
+      assert.ok(previousFocusState === this.focus.focused);
+    });
+
+    test('Should call the focus callback with interrupted state if autofocus is interrupted', function() {
+      var onFocused = sinon.spy();
+      this.mozCamera.autoFocus = sinon.stub();
+      this.mozCamera.autoFocus.returns({
+        then: function(resolve, reject) {
+          var error = new Error();
+          error.name = 'NS_ERROR_IN_PROGRESS';
+          reject(error);
+        }
+      });
+      this.mozCamera.focusMode = 'auto';
+      this.focus.focused = true;
+      this.focus.focus(onFocused);
+      assert.ok(onFocused.calledWith('interrupted'));
+      assert.ok(this.focus.focused === false);
+    });
+  });
+
+  suite('Focus#pause()', function() {
+    setup(function() {
+      this.focus.stopContinuousFocus = sinon.spy();
+      this.focus.stopFaceDetection = sinon.spy();
+    });
+
+    test('Should do nothing if already paused', function() {
+      this.focus.paused = true;
+      this.focus.pause();
+      assert.ok(!this.focus.stopContinuousFocus.called);
+      assert.ok(!this.focus.stopFaceDetection.called);
+      assert.ok(this.focus.paused);
+
+    });
+
+    test('Should stop face detection and continuous focus', function() {
+      this.focus.paused = false;
+      this.focus.pause();
+      assert.ok(this.focus.stopContinuousFocus.called);
+      assert.ok(this.focus.stopFaceDetection.called);
+      assert.ok(this.focus.paused);
+    });
+  });
+
+  suite('Focus#reset()', function() {
+    test('metering areas and focus areas are reset if touch focus enabled', function() {
+      this.focus.touchFocus = true;
+      this.focus.resetFocusAreas();
+      assert.ok(this.focus.mozCamera.setFocusAreas.calledWith([]));
+      assert.ok(this.focus.mozCamera.setMeteringAreas.calledWith([]));
+    });
+
+    test('metering areas and focus areas are not reset if touch focus disabled', function() {
+      this.focus.touchFocus = false;
+      this.focus.resetFocusAreas();
+      assert.ok(!this.focus.mozCamera.setFocusAreas.called);
+      assert.ok(!this.focus.mozCamera.setMeteringAreas.called);
+    });
+  });
+
+  suite('Focus#resume()', function() {
+    setup(function() {
+      this.focus.resumeContinuousFocus = sinon.spy();
+    });
+
+    test('should do nothing if not paused', function() {
+      this.focus.paused = false;
+      this.focus.resume();
+      assert.ok(!this.focus.resumeContinuousFocus.called);
+      assert.ok(!this.focus.paused);
+    });
+
+    test('resumeContinuousFocus called if focus mode is continuous-picture', function() {
+      this.focus.paused = true;
+      this.focus.mozCamera.focusMode = 'continuous-picture'
+      this.focus.resume();
+      assert.ok(this.focus.resumeContinuousFocus.called);
+      assert.ok(!this.focus.paused);
+    });
+
+  });
+
+  suite('Focus#isTouchFocusSupported()', function() {
+    setup(function() {
+      this.focus.mozCamera.capabilities = {};
+    });
+
+    test('it returns false if touch to focus not supported by hardware', function() {
+      this.focus.mozCamera.capabilities.maxFocusAreas = 0;
+      this.focus.mozCamera.capabilities.maxMeteringAreas = 0;
+      assert.ok(!this.focus.isTouchFocusSupported());
+    });
+
+    test('it returns true if touch to focus supported by hardware', function() {
+      this.focus.mozCamera.capabilities.maxFocusAreas = 4;
+      this.focus.mozCamera.capabilities.maxMeteringAreas = 4;
+      assert.ok(this.focus.isTouchFocusSupported());
+    });
+  });
+
+  suite('Focus#isFaceDetectionSupported()', function() {
+
+    test('it returns true if hardware supports face detection', function() {
+      this.focus.mozCamera.capabilities = {
+        maxDetectedFaces: 5
+      };
+      this.focus.mozCamera.startFaceDetection = sinon.stub();
+      assert.ok(this.focus.isFaceDetectionSupported() === true);
+    });
+
+    test('it returns false if hardware doesn\'t support face detection', function() {
+      this.focus.mozCamera.capabilities = {
+        maxDetectedFaces: 0
+      };
+      this.focus.mozCamera.startFaceDetection = undefined;
+      assert.ok(this.focus.isFaceDetectionSupported() === false);
+    });
+
+  });
+
+  suite('Focus#updateFocusArea()', function() {
+    setup(function() {
+      this.focus.focus = sinon.spy();
+      this.focus.stopContinuousFocus = sinon.spy();
+      this.focus.suspendFaceDetection = sinon.spy();
+      this.focus.onAutoFocusChanged = sinon.spy();
+    });
+
+    test('it returns without doing anything if touch to focus disabled', function() {
+      this.focus.touchFocus = false;
+      this.focus.updateFocusArea();
+      assert.ok(!this.focus.stopContinuousFocus.called);
+      assert.ok(!this.focus.suspendFaceDetection.calledWith(10000));
+      assert.ok(!this.focus.mozCamera.setFocusAreas.called);
+      assert.ok(!this.focus.mozCamera.setMeteringAreas.called);
+      assert.ok(!this.focus.focus.called);
+      assert.ok(!this.focus.onAutoFocusChanged.called);
+    });
+
+    test('it updates focus area if touch to focus is enabled', function() {
+      this.focus.touchFocus = true;
+      this.focus.updateFocusArea();
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+      assert.ok(this.focus.stopContinuousFocus.called);
+      assert.ok(this.focus.suspendFaceDetection.calledWith(10000));
+      assert.ok(this.focus.mozCamera.setFocusAreas.called);
+      assert.ok(this.focus.mozCamera.setMeteringAreas.called);
+      assert.ok(this.focus.focus.called);
+    });
+
+    test('Should call focus callback with fail state if updating the focus area fails', function() {
+      this.focus.touchFocus = true;
+      var onFocused = sinon.spy();
+      this.focus.updateFocusArea(null, onFocused);
+      assert.ok(this.focus.focus.called);
+      this.focus.focus.callArgWith(0, 'failed');
+      assert.ok(onFocused.calledWith('failed'));
+    });
+  });
+
+  suite('Focus#resumeCamera', function() {
+    setup(function() {
+      this.sandbox.spy(this.focus, 'onAutoFocusChanged');
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('should call onAutoFocusChanged after pause', function() {
+      this.focus.focusState = 'focusing';
+      this.focus.pause();
+      this.focus.updateFocusState('focusing');
+      assert.ok(this.focus.onAutoFocusChanged.calledWith('focusing'));
+    });
+  });
+
+});

gaia/apps/camera/test/unit/lib/dcf_test.js

@@ -0,0 +1,43 @@
+require('/shared/js/format.js');
+
+suite('Format Timer Unit Tests', function() {
+  /*global asyncStorage*/
+  'use strict';
+  var subject;
+
+  suiteSetup(function(done) {
+    requirejs([
+      'lib/dcf'
+    ], function(dcf) {
+      subject = dcf;
+      done();
+    });
+  });
+
+  suite('#createDCFFilename', function() {
+
+    setup(function() {
+      this.sandbox = sinon.sandbox.create();
+      var stub = this.sandbox.stub(asyncStorage, 'getItem');
+      subject.init();
+      // Trigger the callback
+      stub.getCall(0).args[1]({
+        file: 'moz',
+        dir: '1'
+      });
+    });
+
+    test('=> pads the filename', function() {
+      var result;
+      var storage = {
+        get: function(filename) {
+          result = filename;
+          return {};
+        }
+      };
+
+      subject.createDCFFilename(storage, 'image');
+      assert.equal(result, 'DCIM/1MZLLA/IMG_0moz.jpg');
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/format-picture-sizes_test.js

@@ -0,0 +1,64 @@
+suite('lib/picture-sizes/format-picture-sizes', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['lib/format-picture-sizes'], function(formatPictureSizes) {
+      self.formatPictureSizes = formatPictureSizes;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sizes = [
+     {
+      height: 1536,
+      width: 2048
+     },
+     {
+      height: 1200,
+      width: 1600
+     },
+     {
+      height: 240,
+      width: 320
+     },
+     {
+      height: 480,
+      width: 640
+     },
+     {
+      height: 288,
+      width: 352
+     }
+    ];
+
+    this.options = this.formatPictureSizes(this.sizes);
+  });
+
+  test('Should be sorted by resolution', function() {
+    assert.equal(this.options[0].key, '2048x1536');
+    assert.equal(this.options[4].key, '320x240');
+  });
+
+  test('Should exlude given keys', function() {
+    var options = this.formatPictureSizes(this.sizes, { exclude: { keys: ['2048x1536'] }});
+    var found = options.some(function(size) { return size.key === '2048x1536'; });
+    assert.isFalse(found);
+  });
+
+  test('Should exlude given aspects', function() {
+    var options = this.formatPictureSizes(this.sizes, { exclude: { aspects: ['11:9'] }});
+    var found = options.some(function(size) { return size.data.aspect === '11:9'; });
+    assert.isFalse(found);
+  });
+
+  test('Should not include sizes above the `maxPixelSize` option', function() {
+    var maxPixelSize = 307200;
+    var options = this.formatPictureSizes(this.sizes, { maxPixelSize: maxPixelSize });
+    var someGreater = options.some(function(item) { return item.pixelSize > maxPixelSize; });
+
+    assert.isFalse(someGreater, 'should be none greater than: ' + maxPixelSize);
+  });
+});

gaia/apps/camera/test/unit/lib/format-recorder-profiles_test.js

@@ -0,0 +1,155 @@
+suite('lib/format-recorder-profiles', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['lib/format-recorder-profiles'], function(formatRecorderProfiles) {
+      self.formatRecorderProfiles = formatRecorderProfiles;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.profiles = {
+      'low': {
+        format: '3gp',
+        video: {
+          codec: 'mpeg4sp',
+          bitrate: 128000,
+          framerate: 15,
+          width: 320,
+          height: 240
+        },
+        audio: {
+          codec: 'amrnb',
+          bitrate: 12200,
+          samplerate: 8000,
+          channels: 1
+        }
+      },
+      'high': {
+        format: 'mp4',
+        video: {
+          codec: 'h264',
+          bitrate: 12000000,
+          framerate: 30,
+          width: 1920,
+          height: 1080
+        },
+        audio: {
+          codec: 'aac',
+          bitrate: 96000,
+          samplerate: 48000,
+          channels: 1
+        }
+      },
+      'cif': {
+        format: 'mp4',
+        video: {
+          codec: 'h264',
+          bitrate: 1200000,
+          framerate: 30,
+          width: 352,
+          height: 288
+        },
+        audio: {
+          codec: 'aac',
+          bitrate: 96000,
+          samplerate: 48000,
+          channels: 1
+        },
+        key: 'cif'
+      },
+      '480p': {
+        format: 'mp4',
+        video: {
+          codec: 'h264',
+          bitrate: 5000000,
+          framerate: 30,
+          width: 720,
+          height: 480
+        },
+        audio: {
+          codec: 'aac',
+          bitrate: 96000,
+          samplerate: 48000,
+          channels: 1
+        }
+      },
+      '720p': {
+        format: 'mp4',
+        video: {
+          codec: 'h264',
+          bitrate: 8000000,
+          framerate: 30,
+          width: 1280,
+          height: 720
+        },
+        audio: {
+          codec: 'aac',
+          bitrate: 96000,
+          samplerate: 48000,
+          channels: 1
+        }
+      },
+      '1080p': {
+        format: 'mp4',
+        video: {
+          codec: 'h264',
+          bitrate: 12000000,
+          framerate: 30,
+          width: 1920,
+          height: 1080
+        },
+        audio: {
+          codec: 'aac',
+          bitrate: 96000,
+          samplerate: 48000,
+          channels: 1
+        }
+      }
+    };
+
+    this.profiles.default = this.profiles['720p'];
+
+    this.result = this.formatRecorderProfiles(this.profiles, {
+      exclude: ['high', 'low', 'default']
+    });
+  });
+
+  test('Should have formatted title string', function() {
+    var items = this.result;
+
+    assert.equal(items[0].title, '1080p 1920x1080 16:9');
+    assert.equal(items[1].title, '720p 1280x720 16:9');
+    assert.equal(items[2].title, '480p 720x480 3:2');
+    assert.equal(items[3].title, 'cif 352x288 11:9');
+  });
+
+  test('Should be sorted by pixel count', function() {
+    var items = this.result;
+    var first = items[0];
+    var last = items[items.length - 1];
+
+    assert.equal(first.key, '1080p');
+    assert.equal(last.key, 'cif');
+  });
+
+  test('Should exclude given keys', function() {
+    var exclude = ['default', 'low', 'high', 'other'];
+    var items = this.formatRecorderProfiles(this.profiles, { exclude: exclude });
+    var found = items.some(function(item) { return exclude.indexOf(item.key) > -1; });
+
+    assert.isFalse(found);
+    assert.equal(items.length, 4);
+  });
+
+  test('Should store the raw profile', function() {
+    assert.equal(this.result[0].raw, this.profiles['1080p']);
+  });
+
+  test('Should store the `key`', function() {
+    assert.equal(this.result[0].key, '1080p');
+  });
+});

gaia/apps/camera/test/unit/lib/format-timer_test.js

@@ -0,0 +1,27 @@
+/*
+  Formattimer Test.
+*/
+'use strict';
+
+require('/shared/js/format.js');
+
+suite('Format Timer Unit Tests', function() {
+  var subject;
+
+  suiteSetup(function(done) {
+    requirejs([
+      'lib/format-timer'
+    ], function(formattimer) {
+      subject = formattimer;
+      done();
+    });
+  });
+
+  suite('#exports', function() {
+    test('=> pads minutes and seconds', function() {
+      assert.equal(subject(0), '00:00');
+      assert.equal(subject(60000), '01:00');
+      assert.equal(subject(1000000), '16:40');
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/geo-location_test.js

@@ -0,0 +1,74 @@
+/*jshint maxlen:false*/
+'use strict';
+
+suite('geolocation', function() {
+  var GeoLocation;
+
+  suiteSetup(function(done) {
+    requirejs(['lib/geo-location'], function(geolocation) {
+      GeoLocation = geolocation;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.geolocation = new GeoLocation();
+    sinon.stub(navigator.geolocation, 'watchPosition');
+    sinon.stub(navigator.geolocation, 'clearWatch');
+  });
+
+  teardown(function() {
+    navigator.geolocation.watchPosition.restore();
+    navigator.geolocation.clearWatch.restore();
+  });
+
+  suite('GeoLocation#watch()', function() {
+    test('Should begin watching geolocation position if' +
+         'no watcher currently in place', function() {
+      this.geolocation.watch();
+      assert.isTrue(navigator.geolocation.watchPosition.calledOnce);
+    });
+
+    test('Should begin watching geolocation position if' +
+         'no watcher currently in place', function() {
+      this.geolocation.watcher = 1;
+      this.geolocation.watch();
+      assert.isFalse(navigator.geolocation.watchPosition.called);
+    });
+  });
+
+  suite('GeoLocation#stopWatching()', function() {
+    test('Should call navigator.geolocation.clearWatch passing' +
+         'a reference to the watcher', function() {
+      this.geolocation.watcher = 1;
+      this.geolocation.stopWatching();
+      assert.isTrue(navigator.geolocation.clearWatch.calledWith(1));
+    });
+
+    test('Should unset the watcher', function() {
+      this.geolocation.watcher = 1;
+      this.geolocation.stopWatching();
+      assert.ok(!this.geolocation.watcher);
+    });
+  });
+
+  suite('GeoLocation#setPosition()', function() {
+    test('Should store passed geolocation object on instance', function() {
+      this.geolocation.setPosition({
+        timestamp: 1234,
+        coords: {
+          latitude: 1,
+          longitude: 2,
+          altitude: 3
+        }
+      });
+
+      var position = this.geolocation.position;
+
+      assert.ok(position.timestamp === 1234);
+      assert.ok(position.latitude === 1);
+      assert.ok(position.longitude === 2);
+      assert.ok(position.altitude === 3);
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/pinch_test.js

@@ -0,0 +1,191 @@
+suite('lib/pinch', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'lib/pinch'
+    ], function(Pinch) {
+      self.Pinch = Pinch;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.el = {
+      addEventListener: sinon.spy(),
+      removeEventListener: sinon.spy()
+    };
+
+    this.pinch = new this.Pinch(this.el);
+    this.pinch.emit = sinon.spy();
+  });
+
+  suite('Pinch()', function() {
+    test('Should attach to specified element', function() {
+      assert.isTrue(this.el.addEventListener.called);
+    });
+  });
+
+  suite('Pinch#attach()', function() {
+    test('Should attach touchstart to specified element', function() {
+      this.pinch.attach(this.el);
+
+      assert.isTrue(this.el.addEventListener.calledWith('touchstart',
+        this.pinch.onTouchStart));
+    });
+  });
+
+  suite('Pinch#detach()', function() {
+    test('Should detach touchstart from specified element', function() {
+      this.pinch.detach(this.el);
+
+      assert.isTrue(this.el.removeEventListener.calledWith('touchstart',
+        this.pinch.onTouchStart));
+    });
+  });
+
+  suite('Pinch#onTouchStart()', function() {
+    setup(function() {
+      this.pinch.isPinching = false;
+    });
+
+    test('Should NOT emit `started` for one touch', function() {
+      this.pinch.onTouchStart({
+        touches: [{}]
+      });
+
+      assert.isFalse(this.pinch.emit.calledWith('started'));
+    });
+
+    test('Should emit `started` for two touches', function() {
+      this.pinch.onTouchStart({
+        touches: [{}]
+      });
+      this.pinch.onTouchStart({
+        touches: [{}, {}]
+      });
+
+      assert.isTrue(this.pinch.isPinching);
+      assert.isTrue(this.pinch.emit.calledWith('started'));
+    });
+
+    test('Should remember last two touches for two touches', function() {
+      var touchA = { identifier: 0 };
+      var touchB = { identifier: 1 };
+      this.pinch.onTouchStart({
+        touches: [touchA, touchB]
+      });
+
+      assert.equal(this.pinch.lastTouchA, touchA);
+      assert.equal(this.pinch.lastTouchB, touchB);
+    });
+  });
+
+  suite('Pinch#onTouchMove()', function() {
+    setup(function() {
+      this.pinch.isPinching = false;
+    });
+
+    test('Should NOT emit `change` for one touch', function() {
+      this.pinch.onTouchStart({
+        touches: [{}]
+      });
+      this.pinch.onTouchMove({
+        touches: [{}]
+      });
+
+      assert.isFalse(this.pinch.emit.calledWith('changed'));
+    });
+
+    test('Should emit `change` for two touches', function() {
+      this.pinch.onTouchStart({
+        touches: [{}]
+      });
+      this.pinch.onTouchStart({
+        touches: [{}, {}]
+      });
+      this.pinch.onTouchMove({
+        touches: [{}, {}]
+      });
+
+      assert.isTrue(this.pinch.emit.calledWith('changed'));
+    });
+
+    test('Should track touch "A" for two touches', function() {
+      var touchA1 = { identifier: 0 };
+      var touchA2 = { identifier: 0 };
+      this.pinch.onTouchStart({
+        touches: [touchA1, {}]
+      });
+
+      assert.equal(this.pinch.lastTouchA, touchA1);
+
+      this.pinch.onTouchMove({
+        touches: [touchA2, {}]
+      });
+
+      assert.equal(this.pinch.lastTouchA, touchA2);
+    });
+
+    test('Should track touch "B" for two touches', function() {
+      var touchB1 = { identifier: 1 };
+      var touchB2 = { identifier: 1 };
+      this.pinch.onTouchStart({
+        touches: [{}, touchB1]
+      });
+
+      assert.equal(this.pinch.lastTouchB, touchB1);
+
+      this.pinch.onTouchMove({
+        touches: [{}, touchB2]
+      });
+
+      assert.equal(this.pinch.lastTouchB, touchB2);
+    });
+
+    test('Should calculate delta for two touches', function() {
+      var touchA1 = { identifier: 0, pageX: -1, pageY: -1 };
+      var touchA2 = { identifier: 0, pageX: -2, pageY: -2 };
+      var touchB1 = { identifier: 1, pageX:  1, pageY:  1 };
+      var touchB2 = { identifier: 1, pageX:  2, pageY:  2 };
+      this.pinch.onTouchStart({
+        touches: [touchA1, touchB1]
+      });
+      this.pinch.onTouchMove({
+        touches: [touchA2, touchB2]
+      });
+
+      assert.equal(this.pinch.emit.args[1][1].toFixed(4), '2.8284');
+    });
+  });
+
+  suite('Pinch#onTouchEnd()', function() {
+    setup(function() {
+      this.pinch.isPinching = false;
+    });
+
+    test('Should NOT emit `ended` for one touch', function() {
+      this.pinch.onTouchStart({
+        touches: [{}]
+      });
+      this.pinch.onTouchEnd({
+        touches: []
+      });
+
+      assert.isFalse(this.pinch.emit.calledWith('ended'));
+    });
+
+    test('Should emit `ended` for two touches', function() {
+      this.pinch.onTouchStart({
+        touches: [{}, {}]
+      });
+      this.pinch.onTouchEnd({
+        touches: [{}]
+      });
+
+      assert.isFalse(this.pinch.isPinching);
+      assert.isTrue(this.pinch.emit.calledWith('ended'));
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/setting-alias_test.js

@@ -0,0 +1,156 @@
+suite('lib/setting-alias', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'lib/setting',
+      'lib/setting-alias',
+    ], function(Setting, SettingAlias) {
+      self.Setting = Setting;
+      self.SettingAlias = SettingAlias;
+      done();
+    });
+  });
+
+  setup(function() {
+    var self = this;
+
+    // We use this object to store state
+    // as nested Suites and tests' context
+    // inherits from this context.
+    this.state = {};
+    this.state.value = 'a';
+
+    this.settings = {
+      a: new this.Setting({ key: 'a' }),
+      b: new this.Setting({ key: 'b' })
+    };
+
+    this.alias = new this.SettingAlias({
+      key: 'my-alias',
+      settings: this.settings,
+      get: function() {
+        return this.settings[self.state.value];
+      }
+    });
+  });
+
+  suite('SettingAlias()', function() {
+    test('It stores `key` and `settings` options', function() {
+      assert.equal(this.alias.key, 'my-alias');
+      assert.equal(this.alias.settings, this.settings);
+    });
+  });
+
+  suite('SettingAlias#current()', function() {
+    test('It returns the current setting', function() {
+      assert.equal(this.alias.current().key, 'a');
+      this.state.value = 'b';
+      assert.equal(this.alias.current().key, 'b');
+    });
+  });
+
+  suite('SettingAlias#on()', function() {
+    test('Should fire callback when *current* setting emits event', function() {
+      var callback = sinon.spy();
+      this.alias.on('event', callback);
+      this.settings.a.fire('event');
+      this.settings.b.fire('event');
+      sinon.assert.calledOnce(callback);
+    });
+
+    test('Should pass arguments to the callback', function() {
+      var callback = sinon.spy();
+      this.alias.on('event', callback);
+      this.settings.a.fire('event', 'a', 'b');
+      assert.ok(callback.calledWith('a', 'b'));
+    });
+  });
+
+  suite('SettingAlias#off()', function() {
+    test('it calls the callback once', function() {
+      var callback = sinon.spy();
+
+      this.alias.on('event', callback);
+      this.settings.a.fire('event');
+
+      sinon.assert.calledOnce(callback);
+    });
+
+    test('It only removes the listeners that match the callback given', function() {
+      var callback1 = sinon.spy();
+      var callback2 = sinon.stub();
+
+      this.alias.on('event', callback1);
+      this.alias.on('event', callback2);
+
+      this.settings.a.fire('event');
+
+      sinon.assert.calledOnce(callback1);
+      sinon.assert.calledOnce(callback2);
+
+      callback1.reset();
+      callback2.reset();
+
+      this.alias.off('event', callback1);
+      this.settings.a.fire('event');
+
+      sinon.assert.calledOnce(callback2);
+      sinon.assert.notCalled(callback1);
+    });
+  });
+
+  suite('SettingAlias#get()', function() {
+    test('It calls the underlying Setting\'s `.get()` method', function() {
+      assert.equal(this.alias.get('key'), 'a');
+      this.state.value = 'b';
+      assert.equal(this.alias.get('key'), 'b');
+    });
+  });
+
+  test('It forwards the setting mathod calls onto the current setting', function() {
+    sinon.stub(this.settings.a);
+    sinon.stub(this.settings.b);
+
+    this.alias.filterOptions();
+    this.alias.resetOptions();
+    this.alias.supported();
+    this.alias.selected();
+    this.alias.select();
+    this.alias.next();
+    this.alias.get();
+    this.alias.set();
+
+    sinon.assert.calledOnce(this.settings.a.filterOptions);
+    sinon.assert.calledOnce(this.settings.a.resetOptions);
+    sinon.assert.calledOnce(this.settings.a.supported);
+    sinon.assert.calledOnce(this.settings.a.selected);
+    sinon.assert.calledOnce(this.settings.a.select);
+    sinon.assert.calledOnce(this.settings.a.next);
+    sinon.assert.calledOnce(this.settings.a.get);
+    sinon.assert.calledOnce(this.settings.a.set);
+
+    // Change state
+    this.state.value = 'b';
+
+    this.alias.filterOptions();
+    this.alias.resetOptions();
+    this.alias.supported();
+    this.alias.selected();
+    this.alias.select();
+    this.alias.next();
+    this.alias.get();
+    this.alias.set();
+
+    sinon.assert.calledOnce(this.settings.b.filterOptions);
+    sinon.assert.calledOnce(this.settings.b.resetOptions);
+    sinon.assert.calledOnce(this.settings.b.supported);
+    sinon.assert.calledOnce(this.settings.b.selected);
+    sinon.assert.calledOnce(this.settings.b.select);
+    sinon.assert.calledOnce(this.settings.b.next);
+    sinon.assert.calledOnce(this.settings.b.get);
+    sinon.assert.calledOnce(this.settings.b.set);
+  });
+});

gaia/apps/camera/test/unit/lib/setting_test.js

@@ -0,0 +1,409 @@
+suite('lib/setting', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['lib/setting'], function(Setting) {
+      self.Setting = Setting;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.storage = {
+      getItem: sinon.stub(),
+      setItem: sinon.stub()
+    };
+  });
+
+  suite('Setting()', function() {
+    setup(function() {
+      this.sandbox = sinon.sandbox.create();
+    });
+
+    teardown(function() {
+      this.sandbox.restore();
+    });
+
+    test('Should store the key on self', function() {
+      var setting = new this.Setting({ key: 'mykey', options: [] });
+      assert.ok(setting.key === 'mykey');
+    });
+
+    test('Should save when selection is change, only if marked as `persistent`', function() {
+      var on = this.sandbox.spy(this.Setting.prototype, 'on');
+      var settings1 = new this.Setting({
+        key: 'key',
+        persistent: true,
+        options: []
+      });
+
+      assert.ok(on.calledWith('change:selected', settings1.save));
+      on.reset();
+
+      var settings2 = new this.Setting({ key: 'key', options: [] });
+      assert.ok(!on.calledWith('change:selected', settings2.save));
+    });
+
+    test('Should default to selecting first option if ' +
+    '`selected` is undefined', function() {
+      var setting = new this.Setting({
+        key: 'key',
+        options: [
+          { key: 'a' },
+          { key: 'b' }
+        ]
+      });
+
+      assert.ok(setting.get('selected') === 'a');
+    });
+
+    test('Should flag `options.defined` if options initially defined', function() {
+      var setting = new this.Setting({
+        key: 'key',
+        options: [
+          { key: 'a' },
+          { key: 'b' }
+        ]
+      });
+
+      assert.isTrue(setting.options.defined);
+
+      setting = new this.Setting({
+        key: 'key',
+        options: []
+      });
+
+      assert.isFalse(setting.options.defined);
+    });
+  });
+
+  suite('Setting#select()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'key',
+        options: [
+          { key: 'a' },
+          { key: 'b' }
+        ]
+      });
+    });
+
+    test('Should select the first option if no key match', function() {
+      this.setting.select('b');
+      assert.ok(this.setting.get('selected') === 'b');
+
+      // Fallback to first
+      this.setting.select('c');
+      assert.ok(this.setting.get('selected') === 'a');
+      this.setting.select(3);
+      assert.ok(this.setting.get('selected') === 'a');
+    });
+  });
+
+  suite('Setting#resetOptions()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        selected: 'b',
+        options: [
+          { key: 'a' },
+          { key: 'b' },
+          { key: 'c' }
+        ]
+      });
+    });
+
+    test('Should update the `selected` option to first if no new options match selected', function() {
+      this.setting.resetOptions([
+        { key: 'd' },
+        { key: 'e' },
+        { key: 'f' }
+      ]);
+
+      assert.equal(this.setting.selected('key'), 'd');
+    });
+
+    test('Should maintain the selected key if a key of new options matches', function() {
+      this.setting.resetOptions([
+        { key: 'c' },
+        { key: 'b' },
+        { key: 'a' }
+      ]);
+
+      assert.equal(this.setting.selected('key'), 'b');
+    });
+
+    test('Should maintain the order', function() {
+      var options;
+
+      this.setting.resetOptions([
+        { key: 'a' },
+        { key: 'b' },
+        { key: 'c' }
+      ]);
+
+      options = this.setting.get('options');
+      assert.equal(options[0].key, 'a');
+      assert.equal(options[1].key, 'b');
+      assert.equal(options[2].key, 'c');
+
+      this.setting.resetOptions([
+        { key: 'c' },
+        { key: 'b' },
+        { key: 'a' }
+      ]);
+
+      options = this.setting.get('options');
+      assert.equal(options[0].key, 'c');
+      assert.equal(options[1].key, 'b');
+      assert.equal(options[2].key, 'a');
+    });
+
+    test('Should not fire a `change` event', function() {
+      var spy = sinon.spy();
+
+      this.setting.on('change', spy);
+      this.setting.resetOptions([{ key: 'c' }]);
+
+      assert.isFalse(spy.called);
+    });
+  });
+
+  suite('Setting#filterOptions()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'key',
+        selected: 'b',
+        options: [
+          { key: 'a' },
+          { key: 'b' },
+          { key: 'c' }
+        ]
+      });
+    });
+
+    test('Should filter down the available options', function() {
+      this.setting.filterOptions(['a', 'b']);
+
+      var available = this.setting.get('options');
+      var found = available.some(function(option) { return option.key === 'c'; });
+
+      assert.isFalse(found, 'c should not longer be present');
+    });
+
+    test('Should have no available options if argument is falsy', function() {
+      var available;
+
+      this.setting.filterOptions(null);
+      available = this.setting.get('options');
+      assert.equal(available.length, 0);
+
+      this.setting.filterOptions(undefined);
+      available = this.setting.get('options');
+      assert.equal(available.length, 0);
+
+      this.setting.filterOptions(false);
+      available = this.setting.get('options');
+      assert.equal(available.length, 0);
+    });
+
+    test('Should always filter the original config', function() {
+      var available;
+
+      this.setting.filterOptions(['a', 'b']);
+      available = this.setting.get('options');
+      assert.equal(available.length, 2);
+      assert.equal(available[0].key, 'a');
+      assert.equal(available[1].key, 'b');
+
+      this.setting.filterOptions(['c']);
+      available = this.setting.get('options');
+      assert.equal(available.length, 1);
+      assert.equal(available[0].key, 'c');
+    });
+
+    test('Should maintain `selected` if in filter list', function() {
+      this.setting.filterOptions(['c', 'b']);
+      assert.equal(this.setting.selected('key'), 'b');
+    });
+
+    test('Should update the `selected` match first if not in filter list', function() {
+      this.setting.filterOptions(['c', 'a']);
+      assert.equal(this.setting.selected('key'), 'a');
+    });
+
+    test('Should fire a `change` event', function() {
+      var spy = sinon.spy();
+
+      this.setting.on('change', spy);
+      this.setting.filterOptions(['c']);
+
+      assert.isTrue(spy.called);
+    });
+
+    test('Should cope with keys that aren\'t defined', function() {
+      this.setting.filterOptions(['a', 'c', 'jibberish']);
+      var options = this.setting.get('options');
+
+      assert.equal(options.length, 2);
+      assert.equal(options[0].key, 'a');
+      assert.equal(options[1].key, 'c');
+    });
+  });
+
+  suite('Setting#selected()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'key',
+        options: [
+          { key: 'a', title: 'i am a' },
+          { key: 'b', title: 'i am b'  },
+          { key: 'c', title: 'i am c'  }
+        ]
+      });
+    });
+
+    test('Should return the currently selected option', function() {
+      var selected = this.setting.selected();
+      assert.ok(selected.title === 'i am a');
+
+      this.setting.select('b');
+
+      selected = this.setting.selected();
+      assert.ok(selected.title === 'i am b');
+    });
+
+    test('Should return the given key from the selected option', function() {
+      var title = this.setting.selected('title');
+      assert.ok(title === 'i am a');
+
+      this.setting.select('b');
+
+      var key = this.setting.selected('key');
+      assert.ok(key === 'b');
+    });
+
+    test('Should return `undefined` if no available options', function() {
+      this.setting.filterOptions([]);
+
+      assert.equal(this.setting.selected(), undefined);
+      assert.equal(this.setting.selected('key'), undefined);
+    });
+  });
+
+  suite('Setting#next()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'key',
+        options: [
+          { key: 'a' },
+          { key: 'b' },
+          { key: 'c' }
+        ]
+      });
+    });
+
+    test('Should set the `selected` value to the next option', function() {
+      this.setting.next();
+      assert.ok(this.setting.selected().key === 'b');
+      this.setting.next();
+      assert.ok(this.setting.selected().key === 'c');
+      this.setting.next();
+      assert.ok(this.setting.selected().key === 'a');
+    });
+  });
+
+  suite('Setting#supported()', function() {
+    setup(function() {
+      this.config = {
+        title: 'My title',
+        options: [{ key: 'a' }, { key: 'b' }]
+      };
+    });
+
+    test('Should return false if disabled', function() {
+      var setting;
+
+      this.config.disabled = true;
+      setting = new this.Setting(this.config);
+      assert.isFalse(setting.supported());
+
+      this.config.disabled = false;
+      setting = new this.Setting(this.config);
+      assert.isTrue(setting.supported());
+
+      delete this.config.disabled;
+      setting = new this.Setting(this.config);
+      assert.isTrue(setting.supported());
+    });
+
+    test('Should return true if not disabled and has options', function() {
+      var setting;
+
+      setting = new this.Setting(this.config);
+      assert.isTrue(setting.supported());
+
+      this.config.options = [];
+      setting = new this.Setting(this.config);
+      assert.isFalse(setting.supported());
+    });
+  });
+
+  suite('Setting#fetch()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'foo',
+        storage: this.storage
+      });
+    });
+
+    test('Should `select` silently the given key if one is in storage', function() {
+      sinon.spy(this.setting, 'selected');
+
+      this.setting.fetch();
+      assert.isFalse(this.setting.selected.called);
+
+      this.storage.getItem
+        .withArgs('setting:' + this.setting.key)
+        .returns('the-key');
+
+      this.setting.fetch();
+      assert.isFalse(this.setting.selected.calledWith('the-key'));
+    });
+
+    test('Should not fire a `change` event', function() {
+      var spy = sinon.spy();
+
+      this.storage.getItem
+        .withArgs('setting:' + this.setting.key)
+        .returns('the-key');
+
+      this.setting.on('change', spy);
+      this.setting.fetch();
+
+      assert.isFalse(spy.called);
+    });
+  });
+
+  suite('Setting#save()', function() {
+    setup(function() {
+      this.setting = new this.Setting({
+        key: 'foo',
+        storage: this.storage,
+        options: [
+          { key: 'a' },
+          { key: 'b' }
+        ]
+      });
+    });
+
+    test('Should call `setItem` with the current selected option key', function() {
+      var key = 'setting:' + this.setting.key;
+      var value = this.setting.selected('key');
+
+      this.setting.save();
+      assert.isTrue(this.storage.setItem.calledWith(key, value));
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/settings_test.js

@@ -0,0 +1,100 @@
+suite('lib/settings', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'lib/settings',
+      'lib/setting'
+    ], function(Settings, Setting) {
+      self.Settings = Settings;
+      self.Setting = Setting;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.settings = new this.Settings({
+      setting1: {
+        some: 'stuff',
+        options: [
+          { key: 'a' },
+          { key: 'b' },
+          { key: 'c' }
+        ],
+        persistent: true
+      },
+      setting2: { some: 'stuff' },
+      setting3: { some: 'stuff' }
+    });
+  });
+
+  suite('Settings()', function() {
+    test('Should store each setting on self by key', function() {
+      assert.isTrue(this.settings.setting1 instanceof this.Setting);
+      assert.isTrue(this.settings.setting2 instanceof this.Setting);
+      assert.isTrue(this.settings.setting3 instanceof this.Setting);
+    });
+  });
+
+  suite('Settings#fetch()', function() {
+    setup(function() {
+      sinon.stub(this.settings.setting1, 'fetch');
+      sinon.stub(this.settings.setting2, 'fetch');
+      sinon.stub(this.settings.setting3, 'fetch');
+    });
+
+    test('Should call fetch() on each setting', function() {
+      this.settings.fetch();
+      assert.isTrue(this.settings.setting1.fetch.called);
+      assert.isTrue(this.settings.setting2.fetch.called);
+      assert.isTrue(this.settings.setting3.fetch.called);
+    });
+  });
+
+  suite('Settings#alias()', function() {
+    setup(function() {
+      sinon.spy(this.settings, 'SettingAlias');
+      this.settings.alias({
+        key: 'myAlias',
+        settings: {},
+        get: function() {}
+      });
+    });
+
+    teardown(function() {
+      this.settings.SettingAlias.restore();
+    });
+
+    test('Should call SettingAlias', function() {
+      assert.isTrue(this.settings.SettingAlias.called);
+    });
+
+    test('Should store the alias on self by key', function() {
+      assert.isDefined(this.settings.myAlias);
+    });
+
+    test('Should pass in the given key', function() {
+      var options = this.settings.SettingAlias.args[0][0];
+      assert.equal(options.key, 'myAlias');
+    });
+  });
+
+  suite('Settings#dontSave()', function() {
+    test('Should remove any save event handlers', function() {
+      var setting1 = this.settings.setting1;
+      var setting2 = this.settings.setting2;
+      var setting3 = this.settings.setting3;
+
+      sinon.spy(setting1, 'off');
+      sinon.spy(setting2, 'off');
+      sinon.spy(setting3, 'off');
+
+      this.settings.dontSave();
+
+      assert.isTrue(setting1.off.calledWith('change:selected', setting1.save));
+      assert.isTrue(setting2.off.calledWith('change:selected', setting2.save));
+      assert.isTrue(setting3.off.calledWith('change:selected', setting3.save));
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/sounds_test.js

@@ -0,0 +1,230 @@
+require('/shared/test/unit/mocks/mock_audio.js')
+
+var mocksHelperForSounds = new MocksHelper([
+  'Audio'
+]).init();
+
+suite('Sounds', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  /**
+   * Locals
+   */
+
+  var Sounds;
+  var list = [
+    {
+      name: 'shutter',
+      url: 'resources/sounds/shutter.opus',
+      setting: 'camera.sound.enabled'
+    },
+    {
+      name: 'countdown',
+      url: 'resources/sounds/countdown.opus',
+      setting: 'camera.sound.enabled'
+    },
+    {
+      name: 'recordingStart',
+      url: 'resources/sounds/camcorder_start.opus',
+      setting: 'camera.sound.enabled'
+    },
+    {
+      name: 'recordingEnd',
+      url: 'resources/sounds/camcorder_end.opus',
+      setting: 'camera.sound.enabled'
+    }
+  ];
+
+  mocksHelperForSounds.attachTestHelpers();
+
+  suiteSetup(function(done) {
+    requirejs(['lib/sounds'], function(sounds) {
+      Sounds = sounds;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+    this.clock = sinon.useFakeTimers();
+    this.sounds = new Sounds();
+
+    // A sound to pass to APIs
+    this.mockSound = {
+      name: 'camera',
+      url: 'resources/sounds/shutter.opus',
+      setting: 'camera.sound.enabled'
+    };
+
+    // Keep reference of
+    // things we want to restore
+    this.backup = {
+      mozSettings: navigator.mozSettings
+    };
+  });
+
+  teardown(function() {
+    navigator.mozSettings = this.backup.mozSettings;
+    this.sandbox.restore();
+    this.clock.restore();
+  });
+
+  suite('Sounds()', function() {
+    test('Should have an empty items object', function() {
+      var items = this.sounds.items;
+      assert.ok(this.sounds.hasOwnProperty('items'));
+      assert.ok(typeof items === 'object');
+      assert.ok(Object.keys(items).length === 0);
+    });
+  });
+
+  suite('Sounds#add()', function() {
+    setup(function() {
+
+      // Stub `isEnabled` and call the callback with `true`
+      this.sandbox.stub(this.sounds, 'isEnabled');
+      this.sounds.isEnabled.callsArgWith(1, true);
+
+      // Simple stubs
+      this.sandbox.stub(this.sounds, 'setEnabled');
+      this.sandbox.stub(this.sounds, 'observeSetting');
+    });
+
+    test('Should add each of the sounds to the this.items hash', function() {
+      this.sounds.add(list[0]);
+      this.sounds.add(list[1]);
+      this.sounds.add(list[2]);
+      this.sounds.add(list[3]);
+      assert.ok(this.sounds.items.shutter);
+      assert.ok(this.sounds.items.countdown);
+      assert.ok(this.sounds.items.recordingStart);
+      assert.ok(this.sounds.items.recordingEnd);
+    });
+
+    test('Should call `isEnabled`', function() {
+      this.sounds.add(list[0]);
+      assert.ok(this.sounds.isEnabled.called);
+    });
+
+    test('Should call `setEnabled` with the result of `isEnabled`', function() {
+      var setEnabled = this.sounds.setEnabled;
+      this.sounds.add(list[0]);
+      assert.ok(setEnabled.calledWith(this.sounds.items.shutter, true));
+    });
+  });
+
+  suite('Sounds#isEnabled()', function() {
+    setup(function() {
+      var self = this;
+
+      // Mock object that mimicks
+      // mozSettings get API. Inside
+      // tests set this.mozSettingsGetResult
+      // define the result of the mock call.
+      navigator.mozSettings = {
+        createLock: function() { return this; },
+        get: function(key) {
+          var mozSettings = this;
+          setTimeout(function() {
+            var result = {};
+            result[key] = 'the-result';
+            mozSettings.onsuccess({
+              target: {
+                result: result
+              }
+            });
+          });
+          return this;
+        }
+      };
+    });
+
+    test('Should not error if navigator.mozSettings is undefined', function() {
+      navigator.mozSettings = undefined;
+      this.sounds.isEnabled(this.mockSound);
+    });
+
+    test('Should return the result from mozSettings API', function() {
+      this.sounds.isEnabled(this.mockSound, function(result) {
+        assert.ok(result === 'the-result');
+      });
+
+      // Move time forwards
+      // so the callback fires
+      this.clock.tick(1);
+    });
+  });
+
+  suite('Sounds#observeSetting()', function() {
+    setup(function() {
+      this.sandbox.stub(this.sounds, 'setEnabled');
+      navigator.mozSettings = {
+        addObserver: function(key, callback) {
+          this.callback = callback;
+        }
+      };
+    });
+
+    test('Should not error if navigator.mozSettings is undefined', function() {
+      navigator.mozSettings = undefined;
+      this.sounds.observeSetting(this.mockSound);
+    });
+
+    test('Should call setEnabled with the value passed' +
+         'to the observe callback', function() {
+      this.sounds.observeSetting(this.mockSound);
+
+      // Manually call the callback
+      // checking that `setEnabled` was
+      // called with the expected arguments
+      navigator.mozSettings.callback({ settingValue: true });
+      assert.ok(this.sounds.setEnabled.calledWith(this.mockSound, true));
+    });
+  });
+
+  suite('Sounds#createAudio()', function() {
+    test('Should return an Audio object with the given src', function() {
+      var url = this.mockSound.url;
+      var audio = this.sounds.createAudio(url);
+      assert.ok(audio instanceof window.Audio);
+      assert.ok(~audio.src.indexOf(url));
+    });
+
+    test('Should set the mozAudioChannel type', function() {
+      var audio = this.sounds.createAudio(this.mockSound.url);
+      assert.ok(audio.mozAudioChannelType === 'notification');
+    });
+  });
+
+  suite('Sounds#playSound()', function() {
+    setup(function() {
+      this.mockSound.audio = {
+        play: sinon.spy(),
+        cloneNode: function() { return this; }
+      };
+    });
+
+    test('Should *not* play the sound if it\'s not enabled', function() {
+      this.sounds.playSound(this.mockSound);
+      assert.ok(this.mockSound.audio.play.notCalled);
+    });
+
+    test('Should play the sound if it\'s enabled', function() {
+      this.mockSound.enabled = true;
+      this.sounds.playSound(this.mockSound);
+      assert.ok(this.mockSound.audio.play.called);
+    });
+
+    test('Should throw exception if sound is undefined', function() {
+      try {
+        this.sounds.playSound();
+      } catch (e) {
+        assert.ok('correctly threw exception');
+        return;
+      }
+
+      assert.ok(false);
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/storage_test.js

@@ -0,0 +1,214 @@
+suite('lib/storage', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'lib/storage'
+    ], function(Storage) {
+      self.Storage = Storage;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.clock = sinon.useFakeTimers();
+    this.sandbox = sinon.sandbox.create();
+
+    this.video = {};
+    this.video.addEventListener = sinon.spy();
+    this.video.delete = sinon.stub().returns(this.video);
+
+    this.picture = {};
+    this.picture.addEventListener = sinon.spy();
+    this.picture.removeEventListener = sinon.spy();
+    this.picture.delete = sinon.stub().returns(this.picture);
+
+    // Stub getDeviceStorage
+    if (!navigator.getDeviceStorage) { navigator.getDeviceStorage = function() {}; }
+    this.sandbox.stub(navigator, 'getDeviceStorage');
+
+    navigator.getDeviceStorage
+      .withArgs('pictures')
+      .returns(this.picture);
+
+    navigator.getDeviceStorage
+      .withArgs('videos')
+      .returns(this.video);
+
+    // Stub getDeviceStorages
+    if (!navigator.getDeviceStorages) { navigator.getDeviceStorages = function() {}; }
+    this.sandbox.stub(navigator, 'getDeviceStorages')
+      .withArgs('pictures').returns([this.picture])
+      .withArgs('videos').returns([this.video]);
+
+    // Stub mozSettings
+    navigator.mozSettings = {
+      addObserver: sinon.stub()
+    };
+
+    var options = {
+      dcf: {
+        init: sinon.spy(),
+        createDCFFilename: sinon.stub().callsArgWith(2, 'filename.file')
+      },
+      require: sinon.stub().callsArg(1)
+    };
+
+    // The test instance
+    this.storage = new this.Storage(options);
+    // Storage is a singleton. This forces reconfiguration for each suite
+    this.storage.configure();
+  });
+
+  teardown(function() {
+    this.clock.restore();
+    this.sandbox.restore();
+  });
+
+  suite('Storage()', function() {
+    test('Should listen for change events', function() {
+      assert.isTrue(this.picture.addEventListener.calledWith('change'));
+      assert.isTrue(navigator.mozSettings.addObserver.called);
+    });
+
+    test('Should set state when receiving change events with available reason', function() {
+      this.sandbox.stub(this.storage, 'setState');
+      this.sandbox.stub(this.storage, 'check');
+      this.storage.onStorageChange({
+        reason: 'available'
+      });
+      assert.isTrue(this.storage.setState.called);
+      assert.isTrue(this.storage.check.called);
+    });
+
+    test('Should set state when receiving change events with unavailable reason', function() {
+      this.sandbox.stub(this.storage, 'setState');
+      this.sandbox.stub(this.storage, 'check');
+      this.storage.onStorageChange({
+        reason: 'unavailable'
+      });
+      assert.isTrue(this.storage.setState.called);
+      assert.isTrue(this.storage.check.called);
+    });
+
+    test('Should set state when receiving change events with shared reason', function() {
+      this.sandbox.stub(this.storage, 'setState');
+      this.sandbox.stub(this.storage, 'check');
+      this.storage.onStorageChange({
+        reason: 'shared'
+      });
+      assert.isTrue(this.storage.setState.called);
+      assert.isTrue(this.storage.check.called);
+    });
+
+    test('Should not set state when receiving change events with unexpected reason', function() {
+      this.sandbox.stub(this.storage, 'setState');
+      this.sandbox.stub(this.storage, 'check');
+      this.storage.onStorageChange({
+        reason: 'foo'
+      });
+      assert.isFalse(this.storage.setState.called);
+      assert.isTrue(this.storage.check.called);
+    });
+  });
+
+  suite('Storage#addPicture()', function() {
+    setup(function() {
+      this.picture.addNamed = sinon.spy(function() { return this.addNamed.req; });
+      this.picture.addNamed.req = { result: '/path/to/picture.jpg' };
+
+      this.picture.get = sinon.spy(function() { return this.get.req; });
+      this.picture.get.req = { result: 'memory-backed-blob' };
+
+      this.callback = sinon.spy();
+
+      // Happy path
+      this.storage.addPicture('fake-blob', this.callback);
+      this.picture.addNamed.req.onsuccess({ target: this.picture.addNamed.req });
+      this.picture.get.req.onsuccess({ target: this.picture.get.req });
+    });
+
+    test('Should create a filename if one not given', function() {
+      assert.isTrue(this.storage.dcf.createDCFFilename.calledWith(this.picture, 'image'));
+    });
+
+    test('Should add the given blob to picture storage', function() {
+      assert.isTrue(this.picture.addNamed.calledWith('fake-blob', 'filename.file'));
+    });
+
+    test('Should refetch the memory-backed-blob', function() {
+      assert.isTrue(this.picture.get.calledWith('filename.file'));
+    });
+
+    test('Should callback passing the relative path, absolute path and memory-backed-blob', function() {
+      assert.isTrue(this.callback.calledWith(
+        null,
+        'filename.file',
+        '/path/to/picture.jpg',
+        'memory-backed-blob'));
+    });
+  });
+
+  suite('Settings#isSpace()', function() {
+    setup(function() {
+      var picture = this.picture;
+      var self = this;
+      this.event = { target: { result: 100 } };
+      this.picture.freeSpace = function() {
+        setTimeout(function() { picture.onsuccess(self.event); });
+        return picture;
+      };
+    });
+
+    test('Should return false if space < `maxFileSize` value', function() {
+      this.storage.maxFileSize = 50;
+      this.storage.isSpace(function(result) {
+        assert.isTrue(result);
+      });
+
+      this.clock.tick(1);
+    });
+
+    test('Should return true if space > `maxFileSize` value', function() {
+      this.storage.maxFileSize = 200;
+      this.storage.isSpace(function(result) {
+        assert.isFalse(result);
+      });
+
+      this.clock.tick(1);
+    });
+  });
+
+  suite('Settings#deletePicture()', function() {
+    test('Should call the deviceStorageAPI', function() {
+      this.storage.deletePicture('path/to/picture.jpg');
+      assert.isTrue(this.picture.delete.calledWith('path/to/picture.jpg'));
+    });
+
+    test('Should work when called out of context', function() {
+      var fn = this.storage.deletePicture;
+      fn('path/to/picture.jpg');
+      assert.isTrue(this.picture.delete.calledWith('path/to/picture.jpg'));
+    });
+  });
+
+  suite('Settings#deleteVideo()', function() {
+    test('Should call the deviceStorageAPI', function() {
+      this.storage.deleteVideo('path/video.3gp');
+      assert.isTrue(this.video.delete.calledWith('path/video.3gp'));
+    });
+
+    test('Should delete matching poster image', function() {
+      this.storage.deleteVideo('path/video.3gp');
+      assert.isTrue(this.picture.delete.calledWith('path/video.jpg'));
+    });
+
+    test('Should work when called out of context', function() {
+      var fn = this.storage.deleteVideo;
+      fn('path/video.3gp');
+      assert.isTrue(this.video.delete.calledWith('path/video.3gp'));
+    });
+  });
+});

gaia/apps/camera/test/unit/lib/string-utils_test.js

@@ -0,0 +1,67 @@
+/*jshint maxlen:false*/
+/*global req*/
+'use strict';
+
+suite('utils/string-utils', function() {
+  var StringUtils;
+
+  suiteSetup(function(done) {
+    var self = this;
+
+    this.modules = {};
+
+    requirejs([
+      'lib/string-utils'
+    ], function(_StringUtils) {
+      StringUtils = self.modules.StringUtils = _StringUtils;
+
+      done();
+    });
+  });
+
+  setup(function() {
+
+  });
+
+  suite('toCamelCase', function() {
+    setup(function() {
+
+    });
+
+    test('Should convert hyphenated string to camel-case', function() {
+      var sourceStr = 'this-string-should-be-camel-cased';
+      var outputStr = StringUtils.toCamelCase(sourceStr);
+
+      assert.equal(outputStr, 'thisStringShouldBeCamelCased');
+    });
+
+    test('Should convert snake-case string to camel-case', function() {
+      var sourceStr = 'THIS_STRING_SHOULD_BE_CAMEL_CASED';
+      var outputStr = StringUtils.toCamelCase(sourceStr);
+
+      assert.equal(outputStr, 'thisStringShouldBeCamelCased');
+    });
+  });
+
+  suite('toHyphenate', function() {
+    setup(function() {
+
+    });
+
+    test('Should convert camel-case string to hyphenated', function() {
+      var sourceStr = 'thisStringShouldBeHyphenated';
+      var outputStr = StringUtils.toHyphenate(sourceStr);
+
+      assert.equal(outputStr, 'this-string-should-be-hyphenated');
+    });
+  });
+
+  suite('lastPathComponent', function() {
+    setup(function() {});
+
+    test('Should get the last path component', function() {
+      assert.equal(StringUtils.lastPathComponent('this/is/a/path'), 'path');
+      assert.equal(StringUtils.lastPathComponent('abc'), 'abc');
+    });
+  });
+});

gaia/apps/camera/test/unit/setup.js

@@ -0,0 +1,12 @@
+'use strict';
+
+// Shim for non FXOS environments
+if (!navigator.getDeviceStorage) {
+  navigator.getDeviceStorage = function() {};
+}
+
+// Load RequireJS and use same config as the app uses
+requireApp('camera/bower_components/requirejs/index.js');
+requireApp('camera/js/config/require.js');
+
+require('/shared/test/unit/mocks/mocks_helper.js');

gaia/apps/camera/test/unit/views/controls_test.js

@@ -0,0 +1,281 @@
+suite('views/controls', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'views/controls',
+      'drag'
+    ], function(ControlsView, Drag) {
+      self.ControlsView = ControlsView;
+      self.Drag = Drag;
+      self.style = loadCss('/style/controls.css', function() { done(); });
+    });
+  });
+
+  suiteTeardown(function() {
+    this.style.remove();
+  });
+
+  function loadCss(url, done) {
+    var link = document.createElement('link');
+    link.type = 'text/css';
+    link.rel = 'stylesheet';
+    link.href = url;
+    link.onload = done;
+    document.head.appendChild(link);
+    return link;
+  }
+
+  setup(function() {
+    var self = this;
+
+    this.sandbox = sinon.sandbox.create();
+
+    this.image = {
+      classList: {
+        add: function() {}
+      }
+    };
+
+    window.URL = window.URL || {};
+    window.URL.createObjectURL = window.URL.createObjectURL || function() {};
+    window.URL.revokeObjectURL = window.URL.revokeObjectURL || function() {};
+    this.sandbox.stub(window.URL, 'createObjectURL').returns('<object-url>');
+    this.sandbox.stub(window.URL, 'revokeObjectURL');
+
+    this.sandbox.stub(window, 'Image', function() { return self.image; });
+    this.sandbox.spy(this.ControlsView.prototype, 'onSwitchTapped');
+
+    this.drag = sinon.createStubInstance(this.Drag);
+    this.view = new this.ControlsView({ drag: this.drag });
+    this.view.els.image = undefined;
+    this.classes = this.view.el.classList;
+
+    this.sandbox.stub(this.view.els.thumbnail);
+    this.sandbox.spy(this.view, 'set');
+    this.sandbox.spy(this.view, 'unset');
+    this.sandbox.spy(this.view, 'emit');
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('ControlsView#setThumbnail()', function() {
+    test('Should set the thumbnail image src to the object url', function() {
+      this.view.els.image = this.image;
+      this.view.setThumbnail('<blob>');
+      assert.equal(this.view.els.image.src, '<object-url>');
+    });
+
+    test('Should revokeObjectURL if image is already set', function() {
+      this.view.setThumbnail('<blob-1>');
+      sinon.assert.notCalled(window.URL.revokeObjectURL);
+
+      this.view.setThumbnail('<blob-2>');
+      sinon.assert.calledWith(window.URL.revokeObjectURL, '<object-url>');
+    });
+
+    test('Should set thumbnail to `true`', function() {
+      this.view.setThumbnail('<blob>');
+      sinon.assert.calledWith(this.view.set, 'thumbnail', true);
+    });
+
+    test('Should create an Image and add it to the thmbnail container', function() {
+      this.view.setThumbnail('<blob>');
+      sinon.assert.called(window.Image);
+      sinon.assert.called(this.view.els.thumbnail.appendChild, this.image);
+    });
+  });
+
+  suite('ControlsView#set()', function() {
+    test('Should add the class if only one argument is given', function() {
+      this.view.set('key');
+      assert.isTrue(this.classes.contains('key'));
+    });
+
+    test('Should add a key/value class if a truthy value is given', function() {
+      this.view.set('key', 'val');
+      assert.isTrue(this.classes.contains('key-val'));
+    });
+
+    test('Should remove the previous class when the value is changed', function() {
+      this.view.set('key', 'val');
+      assert.isTrue(this.classes.contains('key-val'));
+
+      this.view.set('key', 'val2');
+      assert.isFalse(this.classes.contains('key-val1'));
+      assert.isTrue(this.classes.contains('key-val2'));
+    });
+
+    test('Should only accept string keys', function() {
+      this.view.set(false);
+      assert.isFalse(this.classes.contains('false'));
+      this.view.set(0);
+      assert.isFalse(this.classes.contains('0'));
+    });
+
+    test('Should remove the class for any falsy values', function() {
+      this.view.set('key');
+      assert.isTrue(this.classes.contains('key'));
+      this.view.set('key', undefined);
+      assert.isFalse(this.classes.contains('key'));
+
+      this.view.set('key');
+      assert.isTrue(this.classes.contains('key'));
+      this.view.set('key', 0);
+      assert.isFalse(this.classes.contains('key'));
+
+      this.view.set('key');
+      assert.isTrue(this.classes.contains('key'));
+      this.view.set('key', null);
+      assert.isFalse(this.classes.contains('key'));
+
+      this.view.set('key');
+      assert.isTrue(this.classes.contains('key'));
+      this.view.set('key', '');
+      assert.isFalse(this.classes.contains('key'));
+    });
+  });
+
+  suite('ControlsView#setScreenReaderVisible()', function() {
+    test('hide the view from screen reader', function() {
+      this.view.setScreenReaderVisible(false);
+      assert.equal(this.view.el.getAttribute('aria-hidden'), 'true');
+    });
+
+    test('show the view to the screen reader', function() {
+      this.view.el.setAttribute('aria-hidden', true);
+      this.view.setScreenReaderVisible(true);
+      assert.equal(this.view.el.getAttribute('aria-hidden'), 'false');
+    });
+  });
+
+  suite('ControlsView#enable()', function() {
+    test('Should add an enabled class if no value is given', function() {
+      this.view.enable();
+      assert.isTrue(this.classes.contains('enabled'));
+    });
+
+    test('Should add a key-enabled class if key is given', function() {
+      this.view.enable('key');
+      assert.isTrue(this.classes.contains('key-enabled'));
+    });
+
+    test('Should remove \'disabled\' class', function() {
+      this.classes.add('disabled');
+      this.view.enable();
+      assert.isFalse(this.classes.contains('disabled'));
+    });
+  });
+
+  suite('ControlsView#disabled()', function() {
+    test('Should add an \'disables\' class if no value is given', function() {
+      this.view.disable();
+      assert.isTrue(this.classes.contains('disabled'));
+    });
+
+    test('Should add a key-enabled class if key is given', function() {
+      this.view.disable('key');
+      assert.isTrue(this.classes.contains('key-disabled'));
+    });
+
+    test('Should remove \'enabled\' class', function() {
+      this.classes.add('enabled');
+      this.view.disable();
+      assert.isFalse(this.classes.contains('enabled'));
+    });
+  });
+
+  suite('ControlsView#onSwitchTapped()', function() {
+    setup(function() {
+      this.event = {
+        preventDefault: sinon.spy(),
+        stopPropagation: sinon.spy()
+      };
+      this.spy = this.ControlsView.prototype.onSwitchTapped;
+      this.view.enable();
+    });
+
+    test('It emits a `modechanged` event', function() {
+      this.view.onSwitchTapped(this.event);
+      sinon.assert.calledWith(this.view.emit, 'modechanged');
+    });
+
+    test('It prevents default to stop the event becoming a click', function() {
+      this.view.onSwitchTapped(this.event);
+      sinon.assert.called(this.event.preventDefault);
+    });
+
+    test('It is debounced to defend against button bashing', function() {
+      this.view.setupSwitch();
+      var callback = this.drag.on.withArgs('tapped').args[0][1];
+
+      callback(this.event);
+      callback(this.event);
+      callback(this.event);
+      callback(this.event);
+
+      sinon.assert.calledOnce(this.spy);
+    });
+  });
+
+  suite('ControlsView#onSwitchSnapped()', function() {
+    setup(function() {
+      this.view.set('mode', 'picture');
+    });
+
+    test('It fires \'modechanged\' when the switch changes position', function() {
+
+      // Didn't change
+      this.view.onSwitchSnapped({ x: 'left' });
+      assert.isFalse(this.view.emit.calledWith('modechanged'));
+
+      // Changed
+      this.view.onSwitchSnapped({ x: 'right' });
+      assert.isTrue(this.view.emit.calledWith('modechanged'));
+    });
+  });
+
+  suite('ControlsView#suspendModeSwitch()', function() {
+    test('It ignores user input on switch when suspended', function() {
+      this.view.suspendModeSwitch(true);
+      assert.ok(this.view.set.calledWith('switch-toggle-disabled'));
+    });
+
+    test('It accepts user input on switch when unsuspended', function() {
+      this.view.suspendModeSwitch(false);
+      assert.ok(this.view.unset.calledWith('switch-toggle-disabled'));
+    });
+  });
+
+  test('The switch should appear in the video position when set before the view is in the DOM', function() {
+    var view = new this.ControlsView();
+    view.setMode('video');
+    view.appendTo(document.body);
+    assert.equal(view.drag.handle.el.style.transform, 'translate(64px, 0px)');
+    assert.equal(view.els.switch.getAttribute('data-l10n-id'),
+      'video-mode-button');
+  });
+
+  test('ControlsView#localize', function() {
+    var view = new this.ControlsView();
+    view.localize();
+    for (var el in view.elsL10n) {
+      assert.equal(view.els[el].getAttribute('data-l10n-id'), view.elsL10n[el]);
+    }
+    assert.equal(view.els.switch.getAttribute('data-l10n-id'),
+      'picture-mode-button');
+  });
+
+  test('ControlsView#setCaptureLabel', function() {
+    var view = new this.ControlsView();
+    [true, false].forEach(function(recording) {
+      view.setCaptureLabel(recording);
+      assert.equal(view.els.capture.getAttribute('data-l10n-id'),
+        recording ? 'stop-capture-button' : 'capture-button');
+    });
+  });
+});

gaia/apps/camera/test/unit/views/face_test.js

@@ -0,0 +1,36 @@
+suite('views/face', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/face'], function(FaceView) {
+      self.FaceView = FaceView;
+      done();
+    });
+  });
+
+  setup(function() {
+    var self = this;
+    // Shortcuts
+    this.view = new this.FaceView();
+
+  });
+
+  suite('FaceView#setPosition()', function() {
+    test('Should set top left css values', function() {
+      this.view.setPosition(42, 101);
+      assert.equal(this.view.el.style.left, '42px');
+      assert.equal(this.view.el.style.top, '101px');
+    });
+  });
+
+  suite('FaceView#setDiameter()', function() {
+    test('Should set width height css values', function() {
+      this.view.setDiameter(50);
+      assert.equal(this.view.el.style.width, '50px');
+      assert.equal(this.view.el.style.height, '50px');
+    });
+  });
+
+});

gaia/apps/camera/test/unit/views/faces_test.js

@@ -0,0 +1,75 @@
+suite('views/faces', function() {
+  /*jshint maxlen:false*/
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/faces'], function(FacesView) {
+      self.FacesView = FacesView;
+      done();
+    });
+  });
+
+  setup(function() {
+    var self = this;
+    this.FaceView = sinon.spy();
+    this.FaceView.prototype = {
+      FaceView: sinon.spy(),
+      hide: sinon.spy(),
+      appendTo: sinon.spy(),
+      setPosition: sinon.spy(),
+      setDiameter: sinon.spy(),
+      show: sinon.spy()
+    };
+    // Shortcuts
+    this.view = new this.FacesView({
+      FaceView: this.FaceView
+    });
+  });
+
+  suite('FacesView#createFaces()', function() {
+    test('Should create Face Views for the given number of faces', function() {
+      this.view.createFaces(10);
+      assert.ok(this.view.faces.length === 10);
+      this.view.createFaces(5);
+      assert.ok(this.view.faces.length === 15);
+    });
+  });
+
+  suite('FacesView#renderFace()', function() {
+    test('Should show and configure the face view based on the face object', function() {
+      var face = {
+        x: 320,
+        y: 400,
+        diameter: 300
+      };
+      var faceView = new this.FaceView();
+      this.view.renderFace(face, faceView);
+      assert.ok(faceView.setPosition.called);
+      assert.ok(faceView.setDiameter.called);
+      assert.ok(faceView.show.called);
+    });
+  });
+
+  suite('FacesView#hideFaces()', function() {
+    test('Should call hide once for each face view', function() {
+      var faceView = {
+        hide: sinon.spy()
+      };
+      this.view.faces = [faceView, faceView, faceView];
+      this.view.hideFaces();
+      assert.ok(faceView.hide.calledThrice);
+    });
+  });
+
+  suite('FacesView#clear()', function() {
+    test('Should remove faces DOM elements and reset faces', function() {
+      this.view.el.removeChild = sinon.spy();
+      this.view.faces = ['face', 'face', 'face'];
+      this.view.clear();
+      assert.ok(this.view.el.removeChild.calledThrice);
+      assert.ok(this.view.faces.length === 0);
+    });
+  });
+
+});

gaia/apps/camera/test/unit/views/hud_test.js

@@ -0,0 +1,45 @@
+suite('views/hud', function() {
+  'use strict';
+
+  var view;
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/hud'], function(HudView) {
+      self.HudView = HudView;
+      done();
+    });
+  });
+
+  setup(function() {
+    view = new this.HudView();
+  });
+
+  test('HudView#setFlashMode()', function() {
+    [{ title: 'flash-on', icon: 'flash-on' },
+     { title: 'flash-off', icon: 'flash-off' },
+     { title: 'flash-auto', icon: 'flash-auto' }].forEach(function(mode) {
+      view.setFlashMode(mode);
+      assert.equal(view.els.flash.dataset.icon, mode.icon);
+      assert.equal(view.els.flash.getAttribute('data-l10n-id'),
+        mode.title + '-button');
+    });
+  });
+
+  test('HudView#setCamera()', function() {
+    [{ title: 'toggle-camera-rear', icon: 'toggle-camera-rear' },
+     { title: 'toggle-camera-front', icon: 'toggle-camera-front' }].forEach(
+      function(mode) {
+        view.setCamera(mode);
+        assert.equal(view.els.camera.dataset.icon, mode.icon);
+        assert.equal(view.els.camera.getAttribute('data-l10n-id'),
+          mode.title + '-button');
+      });
+  });
+
+  test('HudView#setMenuLabel()', function() {
+    view.els.settings.removeAttribute('data-l10n-id');
+    view.setMenuLabel();
+    assert.equal(view.els.settings.getAttribute('data-l10n-id'), 'menu-button');
+  });
+});

gaia/apps/camera/test/unit/views/notification_test.js

@@ -0,0 +1,178 @@
+suite('views/notification', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/notification'], function(NotificationView) {
+      self.NotificationView = NotificationView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.view = new this.NotificationView();
+    this.clock = sinon.useFakeTimers();
+  });
+
+  suite('NotificationView#display()', function() {
+    suite('Temporary', function() {
+      test('Should add the item to the view', function() {
+        assert.equal(this.view.el.getAttribute('role'), 'presentation');
+        this.view.display({ text: 'l10nId' });
+        var child = this.view.el.children[0];
+        assert.ok(child);
+        assert.equal(child.getAttribute('role'), 'status');
+        assert.equal(child.getAttribute('aria-live'), 'assertive');
+      });
+
+      test('Should add `text` as textContent', function() {
+        this.view.display({ text: 'l10nId' });
+        var child = this.view.el.children[0];
+        assert.equal(child.firstChild.getAttribute('data-l10n-id'), 'l10nId');
+        assert.equal(child.getAttribute('role'), 'status');
+        assert.equal(child.getAttribute('aria-live'), 'assertive');
+      });
+
+      test('Should assign className to the item element', function() {
+        this.view.display({ text: 'l10nId', className: 'bar' });
+        var child = this.view.el.children[0];
+        assert.isTrue(child.classList.contains('bar'));
+        assert.equal(child.getAttribute('role'), 'status');
+        assert.equal(child.getAttribute('aria-live'), 'assertive');
+      });
+
+      test('Should remove the last non-persistent item that is in the way', function() {
+        this.view.display({ text: 'l10nId' });
+        var first = this.view.el.children[0];
+
+        assert.ok(first);
+        assert.equal(first.firstChild.getAttribute('data-l10n-id'), 'l10nId');
+
+        this.view.display({ text: 'l10nId2' });
+        var second = this.view.el.children[0];
+
+        assert.ok(second);
+        assert.equal(first.parentNode, null, 'not in dom');
+        assert.equal(second.firstChild.getAttribute('data-l10n-id'),
+          'l10nId2');
+      });
+
+      test('Should auto clear notification after 3s', function() {
+        this.view.display({ text: 'l10nId' });
+        var first = this.view.el.children[0];
+
+        assert.ok(first);
+        assert.equal(first.firstChild.getAttribute('data-l10n-id'), 'l10nId');
+
+        this.clock.tick(1000);
+        assert.ok(first.parentNode, 'is in dom');
+
+        this.clock.tick(1000);
+        assert.ok(first.parentNode, 'is in dom');
+
+        this.clock.tick(1000);
+        assert.equal(first.parentNode, null, 'not in dom');
+      });
+
+      test('Should not mutate the passed object', function() {
+        var options = { text: 'l10nId' };
+
+        this.view.display(options);
+
+        assert.equal(Object.keys(options).length, 1);
+        assert.equal(options.text, 'l10nId');
+      });
+    });
+
+    suite('Persistent', function() {
+      test('Should remain in the DOM until cleared', function() {
+        var id = this.view.display({ text: 'l10nId', persistent: true });
+        var el = this.view.el.children[0];
+
+        assert.ok(el.parentNode, 'is in dom');
+
+        this.clock.tick(1000);
+        assert.ok(el.parentNode, 'is in dom');
+
+        this.clock.tick(3000);
+        assert.ok(el.parentNode, 'is in dom');
+
+        this.view.clear(id);
+        assert.ok(!el.parentNode, 'not in dom');
+      });
+
+      test('Should hide to show temporary notifications, then return', function() {
+        var els = {};
+
+        this.view.display({ text: 'l10nId', persistent: true, className: 'persistent' });
+        els.persistent = this.view.el.querySelector('.persistent');
+
+        assert.ok(els.persistent.parentNode, 'should be in DOM');
+        assert.isFalse(els.persistent.classList.contains('hidden'));
+
+        this.view.display({ text: 'l10nId', className: 'temporary' });
+        els.temporary = this.view.el.querySelector('.temporary');
+
+        assert.ok(els.temporary.parentNode, 'should be in DOM');
+        assert.isTrue(els.persistent.classList.contains('hidden'));
+
+        this.clock.tick(1000);
+        assert.isTrue(els.persistent.classList.contains('hidden'));
+
+        this.clock.tick(3000);
+        assert.ok(!els.temporary.parentNode);
+        assert.isFalse(els.persistent.classList.contains('hidden'));
+      });
+
+      test('Should replace first persistent item with second', function() {
+        var els = {};
+
+        this.view.display({ text: 'l10nId', persistent: true, className: 'persistent1' });
+        els.persistent1 = this.view.el.querySelector('.persistent1');
+
+        assert.ok(els.persistent1.parentNode, 'should be in DOM');
+
+        this.view.display({ text: 'l10nId', persistent: true, className: 'persistent2' });
+        els.persistent2 = this.view.el.querySelector('.persistent2');
+
+        assert.ok(els.persistent2.parentNode, 'should be in DOM');
+        assert.ok(!els.persistent1.parentNode, 'should not be in DOM');
+      });
+    });
+  });
+
+  suite('NotificationView#clear()', function() {
+    test('Should be able to clear notifications early', function() {
+      var id = this.view.display({ text: 'l10nId' });
+      var el = this.view.el.children[0];
+
+      assert.ok(el.parentNode);
+      this.view.clear(id);
+      assert.equal(el.parentNode, null);
+    });
+
+    test('Should not throw when attempting to clear a notification twice', function() {
+      var id = this.view.display({ text: 'l10nId' });
+      var el = this.view.el.children[0];
+
+      assert.ok(el.parentNode);
+      this.view.clear(id);
+      assert.equal(el.parentNode, null);
+      this.view.clear(id);
+    });
+
+    test('Should show hidden persistent notification', function() {
+      var persistent = this.view.display({ text: 'l10nId', persistent: true });
+      var els = {};
+
+      els.persistent = this.view.el.children[0];
+      assert.ok(els.persistent.parentNode, 'is in the dom');
+
+      var temporary = this.view.display({ text: 'l10nId' });
+      assert.isTrue(els.persistent.classList.contains('hidden'), 'is hidden');
+
+      this.view.clear(temporary);
+      assert.isFalse(els.persistent.classList.contains('hidden'), 'is not hidden');
+    });
+  });
+});

gaia/apps/camera/test/unit/views/overlay_test.js

@@ -0,0 +1,52 @@
+/*jshint maxlen:false*/
+'use strict';
+
+suite('views/overlay', function() {
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'views/overlay'
+    ], function(OverlayView) {
+      self.OverlayView = OverlayView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.view = new this.OverlayView({
+      type: 'unavailable',
+      closable: false
+    });
+  });
+
+  suite('OverlayView#getOverlayData()', function() {
+    test('Should return correct data for \'unavailable\'', function() {
+      var output = this.view.getData('unavailable');
+      assert.equal(output.title, 'nocard2-title');
+      assert.equal(output.body, 'nocard3-text');
+    });
+
+    test('Should return correct data for \'nospace\'', function() {
+      var output = this.view.getData('nospace');
+      assert.equal(output.title, 'nospace2-title');
+      assert.equal(output.body, 'nospace2-text');
+    });
+
+    test('Should return correct data for \'shared\'', function() {
+      var output = this.view.getData('shared');
+      assert.equal(output.title, 'pluggedin2-title');
+      assert.equal(output.body, 'pluggedin2-text');
+    });
+
+    test('Should return correct data for \'request-fail\'', function() {
+      var output = this.view.getData('request-fail');
+      assert.equal(output.title, 'camera-unavailable-title');
+      assert.equal(output.body, 'camera-unavailable-text');
+    });
+
+    test('Should return false for unknown key', function() {
+      var output = this.view.getData('something-not-known');
+      assert.equal(output, false);
+    });
+  });
+});

gaia/apps/camera/test/unit/views/preview-gallery_test.js

@@ -0,0 +1,95 @@
+suite('views/preview-gallery', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/preview-gallery'], function(previewGalleryView) {
+      self.previewGalleryView = previewGalleryView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.view = new this.previewGalleryView();
+    this.clock = sinon.useFakeTimers();
+  });
+
+  suite('previewGalleryView#showOptionsMenu()', function() {
+    test('Should show the option menu', function() {
+      this.view.showOptionsMenu();
+      assert.equal(this.view.optionsMenuContainer.children[0].getAttribute(
+        'data-type'), 'action');
+    });
+  });
+
+  suite('previewGalleryView#onFrameWheel', function() {
+    var mockWheelRight = {
+      type: 'wheel', deltaMode: 2, DOM_DELTA_PAGE: 2, deltaX: 1
+    }, mockWheelLeft = {
+      type: 'wheel', deltaMode: 2, DOM_DELTA_PAGE: 2, deltaX: -1
+    }, mockWheelDown = {
+      type: 'wheel', deltaMode: 2, DOM_DELTA_PAGE: 2, deltaY: 1
+    };
+
+    setup(function() {
+      sinon.spy(this.view, 'emit');
+      sinon.stub(this.view, 'onVideoPaused');
+    });
+
+    test('wheel right', function() {
+      this.view.onFrameWheel(mockWheelRight);
+      assert.isTrue(this.view.emit.calledWith('swipe', 'left'));
+      sinon.assert.notCalled(this.view.onVideoPaused);
+    });
+
+    test('wheel left', function() {
+      this.view.onFrameWheel(mockWheelLeft);
+      assert.isTrue(this.view.emit.calledWith('swipe', 'right'));
+      sinon.assert.notCalled(this.view.onVideoPaused);
+    });
+
+    test('wheel right when video is playing', function() {
+      this.view.videoPlaying = true;
+      this.view.onFrameWheel(mockWheelRight);
+      assert.isTrue(this.view.emit.calledWith('swipe', 'left'));
+      sinon.assert.calledOnce(this.view.onVideoPaused);
+    });
+
+    test('wheel down', function() {
+      this.view.onFrameWheel(mockWheelDown);
+      sinon.assert.notCalled(this.view.emit);
+    });
+  });
+
+  suite('previewGalleryView#updateCountText', function() {
+    setup(function() {
+      this.view.render();
+    });
+
+    test('Accessible labelling', function() {
+      var total = 1, current = 3;
+      this.view.updateCountText(current, total);
+      assert.equal(this.view.els.mediaFrame.getAttribute('data-l10n-id'),
+        'media-frame');
+      assert.deepEqual(JSON.parse(this.view.els.mediaFrame.getAttribute(
+        'data-l10n-args')), { total: total, current: current });
+    });
+  });
+
+  suite('Options menu', function() {
+    test('showOptionsMenu', function() {
+      assert.isFalse(this.view.el.classList.contains('action-menu'));
+      this.view.showOptionsMenu();
+      assert.ok(this.view.el.classList.contains('action-menu'));
+    });
+
+    test('hideOptionsMenu', function() {
+      this.view.optionsMenuContainer = document.createElement('div');
+      this.view.el.appendChild(this.view.optionsMenuContainer);
+      this.view.el.classList.add('action-menu');
+
+      this.view.hideOptionsMenu();
+      assert.isFalse(this.view.el.classList.contains('action-menu'));
+    });
+  });
+});

gaia/apps/camera/test/unit/views/setting-options_test.js

@@ -0,0 +1,58 @@
+suite('views/setting-options', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'views/setting-options'
+    ], function(SettingOptionsView) {
+      self.SettingOptionsView = SettingOptionsView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+    this.view = new this.SettingOptionsView({
+      model: { on: sinon.spy(), get: sinon.spy() },
+      l10n: {
+        formatValue: function(id) {
+          return Promise.resolve(id); 
+        },
+      }
+    });
+    this.view.els.ul = document.createElement('ul');
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('SettingOptionsView#renderOption()', function() {
+    var option = {
+      key: 'key',
+      title: 'title'
+    };
+
+    test('localizable not selected', function() {
+      this.view.renderOption(true, option);
+      var rendered = this.view.els.key;
+
+      assert.equal(rendered.getAttribute('role'), 'option');
+      assert.equal(rendered.getAttribute('data-l10n-id'), 'title');
+      assert.isNull(rendered.getAttribute('aria-selected'));
+    });
+
+    test('not localizable selected', function() {
+      // Make current option selected.
+      this.view.selectedKey = option.key;
+
+      this.view.renderOption(false, option);
+      var rendered = this.view.els.key;
+
+      assert.equal(rendered.getAttribute('role'), 'option');
+      assert.equal(rendered.textContent, 'title');
+      assert.equal(rendered.getAttribute('aria-selected'), 'true');
+    });
+  });
+});

gaia/apps/camera/test/unit/views/setting_test.js

@@ -0,0 +1,49 @@
+suite('views/setting', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'views/setting'
+    ], function(SettingView) {
+      self.SettingView = SettingView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.sandbox = sinon.sandbox.create();
+    this.model = {
+      on: sinon.spy(),
+      selected: sinon.stub().returns({ title: 'title' }),
+      get: sinon.stub().returns({ title: 'title', value: 'value' })
+    };
+    this.model.get.withArgs('title').returns('title');
+    this.view = new this.SettingView({ model: this.model });
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('SettingView#render()', function() {
+    setup(function() {
+      this.view.l10n = {
+        formatValue: function(id) {
+          return Promise.resolve(id);
+        },
+        setAttributes: sinon.spy()
+      };
+      this.view.render();
+    });
+
+    test('render setting accessibility', function(done) {
+      assert.equal(this.view.el.getAttribute('role'), 'option');
+      Promise.resolve().then(() => {
+        assert.isTrue(this.view.l10n.setAttributes.calledWith(this.view.el,
+          'setting-option-title', { value: 'title' }));
+        done();
+      });
+    });
+  });
+});

gaia/apps/camera/test/unit/views/settings_test.js

@@ -0,0 +1,78 @@
+suite('views/settings', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs([
+      'views/settings',
+      'views/setting-options'
+    ], function(SettingsView, OptionsView) {
+      self.SettingsView = SettingsView;
+      self.OptionsView = OptionsView;
+      done();
+    });
+  });
+
+  setup(function() {
+    var self = this;
+    this.sandbox = sinon.sandbox.create();
+
+    var OptionsView = sinon.spy(function() {
+      var view = sinon.createStubInstance(self.OptionsView);
+      view.render.returns(view);
+      view.appendTo.returns(view);
+      view.on.returns(view);
+      return view;
+    });
+
+    this.view = new this.SettingsView({ OptionsView: OptionsView });
+  });
+
+  teardown(function() {
+    this.sandbox.restore();
+  });
+
+  suite('SettingsView#onClick()', function() {
+    test('Should not let clicks propagate', function() {
+      var spy = sinon.spy();
+      this.view.onClick({ stopPropagation: spy });
+      assert.isTrue(spy.called);
+    });
+  });
+
+  suite('SettingsView#showSetting()', function() {
+    setup(function() {
+      this.model = {};
+      this.sandbox.spy(this.view, 'showPane');
+      this.view.showSetting(this.model);
+    });
+
+    test('Should create and append a new OptionsView', function() {
+      assert.isTrue(this.view.OptionsView.called);
+      assert.isTrue(this.view.optionsView.appendTo.called);
+    });
+
+    test('Should pass the model into the OptionsView', function() {
+      var options = this.view.OptionsView.args[0][0];
+      assert.equal(options.model, this.model);
+    });
+
+    test('Should show pane 2', function() {
+      assert.isTrue(this.view.showPane.calledWith(2));
+    });
+  });
+
+  suite('SettingsView#goBack()', function() {
+    test('Should destroy the options view (sync)', function() {
+      var options = this.view.optionsView = { destroy: sinon.spy() };
+      this.view.goBack();
+      assert.isTrue(options.destroy.called);
+    });
+
+    test('Should switch back to pane 1', function() {
+      sinon.spy(this.view, 'showPane');
+      this.view.goBack();
+      assert.isTrue(this.view.showPane.calledWith(1));
+    });
+  });
+});

gaia/apps/camera/test/unit/views/timer_test.js

@@ -0,0 +1,39 @@
+suite('views/countdown', function() {
+  'use strict';
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/countdown'], function(CountdownView) {
+      self.CountdownView = CountdownView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.countdown = new this.CountdownView();
+    this.countdown.emit = sinon.spy();
+  });
+
+  suite('CountdownView#set()', function() {
+    test('Should update the text content of the counter', function() {
+      this.countdown.set(1000);
+      assert.ok(this.countdown.el.innerHTML.indexOf(1000) > -1);
+    });
+  });
+
+  suite('CountdownView#reset()', function() {
+    test('Should clear the countdown text', function() {
+      this.countdown.set(1000);
+      assert.isTrue(this.countdown.el.innerHTML.indexOf('1000') > -1);
+      this.countdown.reset();
+      assert.isFalse(this.countdown.el.innerHTML.indexOf('1000') > -1);
+    });
+
+    test('Should remove `immanent` class', function() {
+      this.countdown.setImmanent(true);
+      assert.isTrue(this.countdown.el.classList.contains('immanent'));
+      this.countdown.reset();
+      assert.isFalse(this.countdown.el.classList.contains('immanent'));
+    });
+  });
+});

gaia/apps/camera/test/unit/views/viewfinder_test.js

@@ -0,0 +1,184 @@
+suite('views/viewfinder', function() {
+  'use strict';
+
+  var SENSOR_ANGLE = 90;
+
+  suiteSetup(function(done) {
+    var self = this;
+    requirejs(['views/viewfinder'], function(ViewfinderView) {
+      self.ViewfinderView = ViewfinderView;
+      done();
+    });
+  });
+
+  setup(function() {
+    this.viewfinder = new this.ViewfinderView();
+    this.viewfinder.width = 300;
+    this.viewfinder.height = 500;
+  });
+
+  suite('ViewfinderView#updatePreview()', function() {
+    setup(function() {
+      sinon.stub(this.viewfinder, 'updatePreviewMetrics');
+    });
+
+    test('Should prefer this.scaleType if defined', function() {
+      var preview = { width: 1600, height: 900 };
+      var scaleType;
+
+      this.viewfinder.scaleType = 'fit';
+      this.viewfinder.updatePreview(preview, SENSOR_ANGLE);
+      scaleType = this.viewfinder.updatePreviewMetrics.args[0][3];
+      assert.equal(scaleType, 'fit');
+
+      this.viewfinder.scaleType = 'foobar';
+      this.viewfinder.updatePreview(preview, SENSOR_ANGLE);
+      scaleType = this.viewfinder.updatePreviewMetrics.args[1][3];
+      assert.equal(scaleType, 'foobar');
+    });
+
+    test('Should choose \'fill\' scaleType if preview aspect > container aspect', function() {
+      var scaleType;
+
+      this.viewfinder.scaleType = undefined;
+
+      this.viewfinder.updatePreview({ width: 1600, height: 900 }, SENSOR_ANGLE);
+      scaleType = this.viewfinder.updatePreviewMetrics.args[0][3];
+      assert.equal(scaleType, 'fill');
+
+      this.viewfinder.updatePreview({ width: 400, height: 300 }, SENSOR_ANGLE);
+      scaleType = this.viewfinder.updatePreviewMetrics.args[1][3];
+      assert.equal(scaleType, 'fit');
+    });
+
+    test('Should add negative scale style if `mirror` argument is true', function() {
+      var preview = { width: 1600, height: 900 };
+
+      this.viewfinder.updatePreview(preview, SENSOR_ANGLE, true);
+      assert.isTrue(this.viewfinder.els.videoContainer.style.transform.indexOf('scale(-1') === -1);
+
+      this.viewfinder.updatePreview(preview, SENSOR_ANGLE, false);
+      assert.isFalse(this.viewfinder.els.videoContainer.style.transform.indexOf('scale(-1') !== -1);
+    });
+  });
+
+  suite('ViewfinderView#updatePreviewMetrics()', function() {
+    setup(function() {
+      this.viewfinder.container = {
+        width: this.viewfinder.height,
+        height: this.viewfinder.width
+      };
+
+      this.container = this.viewfinder.container;
+    });
+
+    test('Should set a \'scale-type\' attribute', function() {
+      var previewSize = { width: 400, height: 300 };
+
+      this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fill');
+      assert.equal(this.viewfinder.el.getAttribute('scale-type'), 'fill');
+      this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fit');
+      assert.equal(this.viewfinder.el.getAttribute('scale-type'), 'fit');
+    });
+
+    suite('\'fill\'', function() {
+      test('Should match frame width to container width when preview aspect > container aspect', function() {
+        var previewSize = { width: 1600, height: 900 };
+
+        // Run test-case
+        this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fill');
+
+        // Frame
+        var frame = {
+          width: parseInt(this.viewfinder.els.frame.style.width, 10),
+          height: parseInt(this.viewfinder.els.frame.style.height, 10)
+        };
+
+        // Video container
+        var video = {
+          width: parseInt(this.viewfinder.els.videoContainer.style.width, 10),
+          height: parseInt(this.viewfinder.els.videoContainer.style.height, 10)
+        };
+
+        assert.equal(frame.width, this.container.height);
+        assert.ok(frame.height > this.container.width);
+
+        assert.equal(video.height, this.container.height);
+        assert.ok(video.width > this.container.width);
+      });
+
+      test('Should match frame height to container height when preview aspect < container aspect', function() {
+        var previewSize = { width: 400, height: 300 };
+
+        // Run test-case
+        this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fill');
+
+        var frame = {
+          width: parseInt(this.viewfinder.els.frame.style.width, 10),
+          height: parseInt(this.viewfinder.els.frame.style.height, 10)
+        };
+
+        var video = {
+          width: parseInt(this.viewfinder.els.videoContainer.style.width, 10),
+          height: parseInt(this.viewfinder.els.videoContainer.style.height, 10)
+        };
+
+        assert.ok(frame.width > this.container.height);
+        assert.equal(frame.height, this.container.width);
+
+        assert.ok(video.height > this.container.height);
+        assert.equal(video.width, this.container.width);
+      });
+    });
+
+    suite('\'fit\'', function() {
+      test('Should match frame height to container height when preview aspect > container aspect', function() {
+        var previewSize = { width: 1600, height: 900 };
+
+        // Run test-case
+        this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fit');
+
+        var frame = {
+          width: parseInt(this.viewfinder.els.frame.style.width, 10),
+          height: parseInt(this.viewfinder.els.frame.style.height, 10)
+        };
+
+        var video = {
+          width: parseInt(this.viewfinder.els.videoContainer.style.width, 10),
+          height: parseInt(this.viewfinder.els.videoContainer.style.height, 10)
+        };
+
+        assert.equal(frame.height, this.container.width);
+        assert.ok(frame.width < this.container.height);
+
+        assert.equal(video.width, this.container.width);
+        assert.ok(video.height < this.container.height);
+      });
+
+      test('Should match frame width to container width when preview aspect < container aspect', function() {
+        var previewSize = { width: 400, height: 300 };
+
+        // Run test-case
+        this.viewfinder.updatePreviewMetrics(previewSize, SENSOR_ANGLE, false, 'fit');
+
+        var frame = {
+          width: parseInt(this.viewfinder.els.frame.style.width, 10),
+          height: parseInt(this.viewfinder.els.frame.style.height, 10)
+        };
+
+        var video = {
+          width: parseInt(this.viewfinder.els.videoContainer.style.width, 10),
+          height: parseInt(this.viewfinder.els.videoContainer.style.height, 10)
+        };
+
+        // Check width is equal and height is shorter
+        assert.equal(frame.width, this.container.height);
+        assert.ok(frame.height < this.container.width);
+
+        // Check container width is shorter and container height is equal
+        assert.ok(video.width < this.container.width);
+        assert.equal(video.height, this.container.height);
+      });
+    });
+  });
+});