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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=654550
-->
<head>
<title>Test for Bug 654550</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="text/javascript" src="manifest.js"></script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=654550">Mozilla Bug 654550</a>
<pre id="test">
<script class="testbody" type="text/javascript">
/* Test for Bug 654550 */
// Parallel test must be disabled for media.video_stats.enabled is a global setting
// to prevent the setting from changing unexpectedly in the middle of the test.
PARALLEL_TESTS = 1;
SimpleTest.waitForExplicitFinish();
var manager = new MediaTestManager;
function checkStats(v, aShouldBeEnabled) {
if (aShouldBeEnabled) {
ok(v.mozParsedFrames != 0,
"At least one value should be different from 0 if stats are enabled");
} else {
ok(!v.mozParsedFrames,
"mozParsedFrames should be 0 if stats are disabled");
ok(!v.mozDecodedFrames,
"mozDecodedFrames should be 0 if stats are disabled");
ok(!v.mozPresentedFrames,
"mozPresentedFrames should be 0 if stats are disabled");
ok(!v.mozPaintedFrames,
"mozPaintedFrames should be 0 if stats are disabled");
}
}
function ontimeupdate_statsEnabled(event) {
var v = event.target;
v.removeEventListener('timeupdate', ontimeupdate_statsEnabled);
checkStats(v, true);
SpecialPowers.popPrefEnv(
function() {
v.addEventListener("timeupdate", ontimeupdate_statsDisabled);
});
}
function ontimeupdate_statsDisabled(event) {
var v = event.target;
v.removeEventListener('timeupdate', ontimeupdate_statsDisabled);
checkStats(v, false);
removeNodeAndSource(v);
manager.finished(v.token);
}
function startTest(test, token) {
var v = document.createElement('video');
v.token = token;
v.src = test.name;
// playback may reach the end before pref is changed for the duration is short
// set 'loop' to true to keep playing so that we won't miss 'timeupdate' events
v.loop = true;
manager.started(token);
SpecialPowers.pushPrefEnv({"set": [["media.video_stats.enabled", true]]},
function() {
v.play();
v.addEventListener("timeupdate", ontimeupdate_statsEnabled);
});
}
SpecialPowers.pushPrefEnv({"set": [["media.video_stats.enabled", false]]},
function() {
manager.runTests(gVideoTests, startTest);
});
</script>
</pre>
</body>
</html>
|
