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gaia/apps/system/test/unit/browser_mixin_test.js

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+'use strict';
+/* global MockAppWindow */
+
+requireApp('system/test/unit/mock_app_window.js');
+
+suite('BrowserMixin', function() {
+  var subject, realAppWindow;
+
+  function extend(mixin) {
+    for (var prop in mixin) {
+      if (mixin.hasOwnProperty(prop)) {
+        MockAppWindow.prototype[prop] = mixin[prop];
+      }
+    }
+  }
+
+  setup(function(done) {
+    realAppWindow = window.AppWindow;
+    window.AppWindow = MockAppWindow;
+    this.sinon.stub(MockAppWindow, 'addMixin', extend);
+    requireApp('system/js/browser_mixin.js', function() {
+      subject = new MockAppWindow();
+      done();
+    });
+  });
+
+  teardown(function() {
+    window.AppWindow = realAppWindow;
+  });
+
+  suite('on import >', function() {
+    test('adds the mixin to the app window', function() {
+      assert.isTrue(MockAppWindow.addMixin.called);
+    });
+  });
+
+  suite('focus >', function() {
+    setup(function() {
+      this.sinon.spy(subject, 'getTopMostWindow');
+    });
+
+    test('uses the topMostWindow', function() {
+      subject.focus();
+      assert.isTrue(subject.getTopMostWindow.called);
+    });
+
+    test('focus the context menu if shown', function() {
+      subject.contextmenu = {
+        isShown: this.sinon.stub().returns(true),
+        focus: this.sinon.stub()
+      };
+      subject.focus();
+      assert.isTrue(subject.contextmenu.focus.called);
+    });
+
+    test('focus the browser element if no contextmenu', function() {
+      this.sinon.spy(subject.browser.element, 'focus');
+      subject.focus();
+      assert.isTrue(subject.browser.element.focus.called);
+    });
+
+    test('does not focus the browser element if activeElement', function() {
+      var element = subject.browser.element;
+      this.sinon.stub(subject, 'getActiveElement').returns(element);
+      this.sinon.spy(element, 'focus');
+      subject.focus();
+      assert.isFalse(element.focus.called);
+    });
+  });
+
+  suite('blur >', function() {
+    setup(function() {
+      this.sinon.spy(subject, 'getTopMostWindow');
+    });
+
+    test('uses the topMostWindow', function() {
+      subject.blur();
+      assert.isTrue(subject.getTopMostWindow.called);
+    });
+
+    test('blur the browser element if activeElement', function() {
+      var element = subject.browser.element;
+      this.sinon.stub(subject, 'getActiveElement').returns(element);
+      this.sinon.spy(element, 'blur');
+      subject.blur();
+      assert.isTrue(element.blur.called);
+    });
+
+    test('does not blur the browser element if !activeElement', function() {
+      var element = subject.browser.element;
+      this.sinon.stub(subject, 'getActiveElement').returns({});
+      this.sinon.spy(element, 'blur');
+      subject.blur();
+      assert.isFalse(element.blur.called);
+    });
+  });
+});