test_preserve_playbackrate_after_ui_play.html

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<!DOCTYPE HTML>

<html>

<head>

  <title> Bug 1013933 - preserve playbackRate after clicking play button </title>

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

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

  <script type="application/javascript" src="browserElementTestHelpers.js"></script>

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

</head>

<body>

<div id="content">

  <video width="320" height="240" id="video" controls mozNoDynamicControls preload="auto"></video>

</div>

<script type="text/javascript">

/*

 * Positions of the UI elements, relative to the upper-left corner of the

 * <video> box.

*/

const videoHeight = 240;

const playButtonWidth = 28;

const playButtonHeight = 28;

const playButtonCenterX = 0 + Math.round(playButtonWidth / 2);

const playButtonCenterY = videoHeight - Math.round(playButtonHeight / 2);

var expectedPlaybackRate = 0.5

function runTest() {

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

  video.src = "audio.wav";

  video.loop = true;

  video.playbackRate = expectedPlaybackRate;

  video.oncanplaythrough = function() {

    video.oncanplaythrough = null;

    is(video.paused, true, "video is not playing yet.");

    is(video.playbackRate, expectedPlaybackRate,

       "playbackRate is correct before clicking play button.");

    // Click the play button

    synthesizeMouse(video, playButtonCenterX, playButtonCenterY, { });

};

  video.onplay = function() {

    video.onplay = null;

    is(video.paused, false, "video starts playing.");

    is(video.playbackRate, expectedPlaybackRate,

       "playbackRate is correct after clicking play button.");

    video.pause();

    SimpleTest.finish();

};

window.addEventListener("load", runTest);

SimpleTest.waitForExplicitFinish();

</script>

</pre>

</body>

</html>