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<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Test for Bug 1281418 - Change the src attribue for TrackElement.</title>
  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();

SpecialPowers.pushPrefEnv({"set": [["media.webvtt.regions.enabled", true]]},
  function() {
    var video = document.createElement("video");
    video.src = "seek.webm";
    video.preload = "metadata";
    var trackElement = document.createElement("track");
    trackElement.src = "basic.vtt";
    trackElement.default = true;

    document.getElementById("content").appendChild(video);
    video.appendChild(trackElement);

    video.addEventListener("loadedmetadata", function metadata() {
      if (trackElement.readyState <= 1) {
        setTimeout(metadata, 0);
        return;
      }
      is(video.textTracks.length, 1, "Length should be 1.");
      is(video.textTracks[0].cues.length, 6, "Cue length should be 6.");

      trackElement.src = "sequential.vtt";
      trackElement.track.mode = "showing";
      video.play();
    });

    video.addEventListener("ended", function end() {
      is(trackElement.readyState, 2, "readyState should be 2.")
      is(video.textTracks.length, 1, "Length should be 1.");
      is(video.textTracks[0].cues.length, 3, "Cue length should be 3.");
      SimpleTest.finish();
    });
});
</script>
</pre>
</body>
</html>