dom/media/test/test_texttrackevents_video.html
author Dorel Luca <dluca@mozilla.com>
Sat, 12 Jan 2019 01:28:30 +0200
changeset 453595 c45da646fc6140bd59a36bda18f6cecde6163feb
parent 314321 cf19bbf00b0e21f3c8833e6857047b7aae008063
child 469641 ba6f655fd68963530c866d0d4a48c3db3d307777
permissions -rw-r--r--
Backed out changeset 24243f13c895 (bug 1519308) for build bustage in mozbuild/mozbuild/test/configure/test_checks_configure.py. CLOSED TREE

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Tests for TextTrack DOM Events</title>
  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
  <script type="text/javascript" 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">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();

var video = document.createElement("video");
video.src = "vp9cake.webm";
video.preload = "auto";
video.controls = true;
var trackElement = document.createElement("track");
trackElement.src = "sequential.vtt";
trackElement.kind = "subtitles";
trackElement.default = true;
document.getElementById("content").appendChild(video);
video.appendChild(trackElement);

var trackElementCueChangeCount = 0;
var trackCueChangeCount = 0;
var cueEnterCount = 0;
var cueExitCount = 0;

video.addEventListener("loadedmetadata", function run_tests() {
  // Re-queue run_tests() at the end of the event loop until the track
  // element has loaded its data.
  if (trackElement.readyState == 1) {
    return setTimeout(run_tests, 0);
  }
  is(trackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
  ok('oncuechange' in trackElement.track, "Track::OnCueChange should exist.");

  var textTrack = trackElement.track;
  is(textTrack.cues.length, 3, "textTrack.cues.length should 3.");
  textTrack.cues[0].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[0].onexit = function() {
    ++cueExitCount;
  };
  textTrack.cues[1].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[1].onexit = function() {
    ++cueExitCount;
  };
  textTrack.cues[2].onenter = function() {
    ++cueEnterCount;
  };
  textTrack.cues[2].onexit = function() {
    ++cueExitCount;
  };

  trackElement.track.oncuechange = function() {
    ++trackElementCueChangeCount;
  };

  trackElement.addEventListener("cuechange", function() {
    ++trackCueChangeCount;
  });

  video.play();
});

video.addEventListener('ended', function() {
  // Should be fired 1 to 6 times, as there are 3 cues,
  // with a change event for when it is activated/deactivated
  // (6 events at most).
  isnot(trackElementCueChangeCount, 0, "TrackElement should fire cue change at least one time.");
  ok(trackElementCueChangeCount <= 6, 'trackElementCueChangeCount should <= 6');
  isnot(trackCueChangeCount, 0, "TrackElement.track should fire cue change at least one time.");
  ok(trackCueChangeCount <= 6, 'trackCueChangeCount should <= 6');
  is(cueEnterCount, 3, "cueEnterCount should fire three times.");
  is(cueExitCount, 3, "cueExitCount should fire three times.");
  SimpleTest.finish()
});
</script>
</pre>
</body>
</html>