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<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
Author: arv@google.com (Erik Arvidsson)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.events.OnlineListener</title>
<script src="../base.js"></script>
<script>
goog.require('goog.events.BrowserFeature');
goog.require('goog.events.OnlineHandler');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
goog.require('goog.testing.MockClock');
goog.require('goog.testing.PropertyReplacer');
</script>
</head>
<body>
<script>
var stubs = new goog.testing.PropertyReplacer();
var clock = new goog.testing.MockClock();
var online = true;
var onlineCount;
var offlineCount;
function listenToEvents(oh) {
onlineCount = 0;
offlineCount = 0;
goog.events.listen(oh, goog.events.OnlineHandler.EventType.ONLINE,
function(e) {
assertTrue(oh.isOnline());
onlineCount++;
});
goog.events.listen(oh, goog.events.OnlineHandler.EventType.OFFLINE,
function(e) {
assertFalse(oh.isOnline());
offlineCount++;
});
}
function setUp() {
stubs.set(goog.events.OnlineHandler.prototype, 'isOnline', function() {
return online;
});
}
function tearDown() {
stubs.reset();
clock.uninstall();
}
function testConstructAndDispose() {
var oh = new goog.events.OnlineHandler();
oh.dispose();
}
function testNoOnlineProperty() {
stubs.set(goog.events.BrowserFeature,
'HAS_NAVIGATOR_ONLINE_PROPERTY', false);
stubs.set(goog.events.EventHandler.prototype, 'listen',
goog.testing.recordFunction());
var oh = new goog.events.OnlineHandler();
assertEquals(0, oh.eventHandler_.listen.getCallCount());
oh.dispose();
}
function testNonHtml5() {
clock.install();
stubs.set(goog.events.BrowserFeature,
'HAS_HTML5_NETWORK_EVENT_SUPPORT', false);
var oh = new goog.events.OnlineHandler();
listenToEvents(oh);
clock.tick(500);
online = false;
clock.tick(500);
assertEquals(0, onlineCount);
assertEquals(1, offlineCount);
online = true;
clock.tick(500);
assertEquals(1, onlineCount);
assertEquals(1, offlineCount);
oh.dispose();
clock.dispose();
}
function testHtml5() {
stubs.set(goog.events.BrowserFeature,
'HAS_HTML5_NETWORK_EVENT_SUPPORT', true);
// Test for browsers that fire network events on document.body.
stubs.set(goog.events.BrowserFeature,
'HTML5_NETWORK_EVENTS_FIRE_ON_BODY', true);
var oh = new goog.events.OnlineHandler();
listenToEvents(oh);
online = false;
var e = new goog.events.Event('offline');
goog.events.fireListeners(document.body, e.type, false, e);
assertEquals(0, onlineCount);
assertEquals(1, offlineCount);
online = true;
e = new goog.events.Event('online');
goog.events.fireListeners(document.body, e.type, false, e);
assertEquals(1, onlineCount);
assertEquals(1, offlineCount);
oh.dispose();
// Test for browsers that fire network events on window.
stubs.set(goog.events.BrowserFeature,
'HTML5_NETWORK_EVENTS_FIRE_ON_BODY', false);
oh = new goog.events.OnlineHandler();
listenToEvents(oh);
online = false;
e = new goog.events.Event('offline');
goog.events.fireListeners(window, e.type, false, e);
assertEquals(0, onlineCount);
assertEquals(1, offlineCount);
online = true;
e = new goog.events.Event('online');
goog.events.fireListeners(window, e.type, false, e);
assertEquals(1, onlineCount);
assertEquals(1, offlineCount);
oh.dispose();
}
</script>
</body>
</html>
|
