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// 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());
}
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