gecko-dev/dom/html/test/test_audio_wakelock.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=868943
-->
<head>
<title>Test for Bug 868943</title>
<script type="application/javascript" src="/MochiKit/packed.js"></script>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=868943">Mozilla Bug 868943</a>
<p id="display"></p>
<div id="content">
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 868943 **/
function testAudioPlayPause() {
var lockState = true;
var count = 0;
var content = document.getElementById('content');
var audio = document.createElement('audio');
audio.src = "wakelock.ogg";
content.appendChild(audio);
var startDate;
function testAudioPlayListener(topic, state) {
is(topic, "cpu", "#1 Audio element locked the target == cpu");
var locked = state == "locked-foreground" ||
state == "locked-background";
var s = locked ? "locked" : "unlocked";
is(locked, lockState, "#1 Audio element " + s + " the cpu");
count++;
// count == 1 is when the cpu wakelock is created
// count == 2 is when the cpu wakelock is released
if (count == 1) {
// The next step is to unlock the resource.
lockState = false;
audio.pause();
startDate = new Date();
return;
}
is(count, 2, "The count should be 2 which indicates wakelock release");
if (count == 2) {
var diffDate = (new Date() - startDate);
ok(diffDate > 200, "#1 There was at least 200 milliseconds between the stop and the wakelock release");
content.removeChild(audio);
navigator.mozPower.removeWakeLockListener(testAudioPlayListener);
runTests();
}
};
navigator.mozPower.addWakeLockListener(testAudioPlayListener);
audio.play();
}
function testAudioPlay() {
var lockState = true;
var count = 0;
var content = document.getElementById('content');
var audio = document.createElement('audio');
audio.src = "wakelock.ogg";
content.appendChild(audio);
function testAudioPlayListener(topic, state) {
is(topic, "cpu", "#2 Audio element locked the target == cpu");
var locked = state == "locked-foreground" ||
state == "locked-background";
var s = locked ? "locked" : "unlocked";
is(locked, lockState, "#2 Audio element " + s + " the cpu");
count++;
// count == 1 is when the cpu wakelock is created: the wakelock must be
// created when the media element starts playing.
// count == 2 is when the cpu wakelock is released.
if (count == 1) {
// The next step is to unlock the resource.
lockState = false;
} else if (count == 2) {
content.removeChild(audio);
navigator.mozPower.removeWakeLockListener(testAudioPlayListener);
runTests();
}
};
navigator.mozPower.addWakeLockListener(testAudioPlayListener);
audio.play();
}
var tests = [ testAudioPlayPause, testAudioPlay ];
function runTests() {
if (!tests.length) {
SimpleTest.finish();
return;
}
var test = tests.pop();
test();
};
SpecialPowers.pushPrefEnv({"set": [["media.wakelock_timeout", 500]]}, runTests);
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body>
</html>