gecko-dev/content/media/test/test_mozHasAudio.html

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HTML

<!DOCTYPE HTML>
<html>
<head>
<title>Test playback of media files that should play OK</title>
<script type="text/javascript" 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>
<pre id="test">
<script class="testbody" type="text/javascript">
var manager = new MediaTestManager;
function onloadedmetadata(e) {
var t = e.target;
is(t.mozHasAudio, t.hasAudio, "The element reports the wrong audio property." + t.token);
manager.finished(t.token);
}
function startTest(test, token) {
var elemType = /^audio/.test(test.type) ? "audio" : "video";
var element = document.createElement(elemType);
element.token = token;
manager.started(token);
element.src = test.name;
element.name = test.name;
element.hasAudio = test.hasAudio;
element.addEventListener("loadedmetadata", onloadedmetadata, false);
element.load();
}
manager.runTests(gMozHasAudioTests, startTest);
</script>
</pre>
</body>
</html>