vtt_update_display_after_removed_cue.html

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<!DOCTYPE HTML>

<html class="reftest-wait">

<head>

</head>

<body>

<video id="v1" autoplay></video>

<script type="text/javascript">

/**

 * This test is used to ensure we would update the cue display after removing

 * cue from the text track, the removed cue should not display on the video's

 * rendering area.

*/

function testUpdateDisplayAfterRemovedCue() {

  let video = document.getElementById("v1");

  video.src = "black.mp4";

  let cue = new VTTCue(0, 4, "hello testing");

  let track = video.addTextTrack("captions");

  track.mode = "showing";

  track.addCue(cue);

  cue.onenter = () => {

    cue.onenter = null;

    track.removeCue(cue);

    video.pause();

    video.onpause = () => {

      video.onpause = null;

      document.documentElement.removeAttribute('class');

};

window.addEventListener("MozReftestInvalidate",

                        testUpdateDisplayAfterRemovedCue);

</script>

</body>

</html>