| // Copyright 2013 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| goog.provide('goog.labs.dom.PageVisibilityMonitorTest'); |
| goog.setTestOnly('goog.labs.dom.PageVisibilityMonitorTest'); |
| |
| goog.require('goog.events'); |
| goog.require('goog.functions'); |
| goog.require('goog.labs.dom.PageVisibilityMonitor'); |
| goog.require('goog.testing.PropertyReplacer'); |
| goog.require('goog.testing.events'); |
| goog.require('goog.testing.events.Event'); |
| goog.require('goog.testing.jsunit'); |
| goog.require('goog.testing.recordFunction'); |
| |
| var stubs = new goog.testing.PropertyReplacer(); |
| var vh; |
| |
| |
| function tearDown() { |
| goog.dispose(vh); |
| vh = null; |
| stubs.reset(); |
| } |
| |
| function testConstructor() { |
| vh = new goog.labs.dom.PageVisibilityMonitor(); |
| } |
| |
| function testNoVisibilitySupport() { |
| stubs.set(goog.labs.dom.PageVisibilityMonitor.prototype, |
| 'getBrowserEventType_', goog.functions.NULL); |
| |
| var listener = goog.testing.recordFunction(); |
| vh = new goog.labs.dom.PageVisibilityMonitor(); |
| |
| goog.events.listen(vh, 'visibilitychange', listener); |
| |
| var e = new goog.testing.events.Event('visibilitychange'); |
| e.target = window.document; |
| goog.testing.events.fireBrowserEvent(e); |
| assertEquals(0, listener.getCallCount()); |
| } |
| |
| function testListener() { |
| stubs.set(goog.labs.dom.PageVisibilityMonitor.prototype, |
| 'getBrowserEventType_', goog.functions.constant('visibilitychange')); |
| |
| var listener = goog.testing.recordFunction(); |
| vh = new goog.labs.dom.PageVisibilityMonitor(); |
| |
| goog.events.listen(vh, 'visibilitychange', listener); |
| |
| var e = new goog.testing.events.Event('visibilitychange'); |
| e.target = window.document; |
| goog.testing.events.fireBrowserEvent(e); |
| |
| assertEquals(1, listener.getCallCount()); |
| } |
| |
| function testListenerForWebKit() { |
| stubs.set(goog.labs.dom.PageVisibilityMonitor.prototype, |
| 'getBrowserEventType_', |
| goog.functions.constant('webkitvisibilitychange')); |
| |
| var listener = goog.testing.recordFunction(); |
| vh = new goog.labs.dom.PageVisibilityMonitor(); |
| |
| goog.events.listen(vh, 'visibilitychange', listener); |
| |
| var e = new goog.testing.events.Event('webkitvisibilitychange'); |
| e.target = window.document; |
| goog.testing.events.fireBrowserEvent(e); |
| |
| assertEquals(1, listener.getCallCount()); |
| } |