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

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+/* global MuteIcon, MockL10n */
+'use strict';
+
+requireApp('system/js/service.js');
+requireApp('system/js/base_ui.js');
+requireApp('system/js/base_icon.js');
+requireApp('system/js/mute_icon.js');
+require('/shared/test/unit/mocks/mock_l10n.js');
+
+suite('system/MuteIcon', function() {
+  var subject, realL10n, MockSoundManager;
+
+  setup(function() {
+    MockSoundManager = {
+      vibrationEnabled: false,
+      currentVolume: {
+        notification: 10
+      }
+    };
+    realL10n = navigator.mozL10n;
+    navigator.mozL10n = MockL10n;
+    subject = new MuteIcon(MockSoundManager);
+    subject.start();
+    subject.element = document.createElement('div');
+  });
+
+  teardown(function() {
+    navigator.mozL10n = realL10n;
+    subject.stop();
+  });
+
+  test('Vibration disabled and notification volume is 0', function() {
+    MockSoundManager.vibrationEnabled = false;
+    MockSoundManager.currentVolume.notification = 0;
+    this.sinon.stub(MockL10n, 'get');
+    subject.update();
+    assert.isTrue(subject.isVisible());
+    assert.isFalse(subject.element.classList.contains('vibration'));
+    assert.equal(MockL10n.getAttributes(subject.element).id,
+      'statusbarIconOn-mute');
+  });
+
+  test('Vibration enabled and notification volume is 0"', function() {
+    MockSoundManager.vibrationEnabled = true;
+    MockSoundManager.currentVolume.notification = 0;
+    subject.update();
+    assert.isTrue(subject.isVisible());
+    assert.isTrue(subject.element.classList.contains('vibration'));
+    assert.equal(MockL10n.getAttributes(subject.element).id,
+      'statusbarIconOn-vibration');
+  });
+
+  test('Vibration disabled and notification is not muted', function() {
+    MockSoundManager.vibrationEnabled = false;
+    MockSoundManager.currentVolume.notification = 11;
+    subject.update();
+    assert.isFalse(subject.isVisible());
+  });
+});