test_VideoPlaybackQuality_disabled.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>Test basic functionality of VideoPlaybackQuality</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<pre id="test">

<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

function test() {

  var video = document.createElement("video");

  ok(!video.getVideoPlaybackQuality, "getVideoPlaybackQuality should be hidden behind a pref");

  var accessThrows = false;

  try {

    video.getVideoPlaybackQuality();

  } catch (e) {

    accessThrows = true;

  ok(accessThrows, "getVideoPlaybackQuality should be hidden behind a pref");

  SimpleTest.finish();

addLoadEvent(function() {

  SpecialPowers.pushPrefEnv({"set":

     ["media.mediasource.enabled", false],

  }, test);

});

</script>

</pre>

</body>

</html>