track-cues-enter-exit.html

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This test has a WPT meta file that disables it given conditions:
- os == "win" : https://bugzilla.mozilla.org/show_bug.cgi?id=1533648
This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/track/track-element/track-cues-enter-exit.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>TextTrack's cues are indexed and updated in order during video playback</title>

<meta name="timeout" content="long">

<script src="/common/media.js"></script>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<video>

    <track src="resources/cues-chrono-order.vtt" kind="captions" default>

    <script>

    // Use the enter and exit events on TextTrackCue.

    async_test(function(t) {

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

        var testTrack = document.querySelector("track");

        video.src = getVideoURI("/media/test");

        video.oncanplaythrough = t.step_func(attemptTests);

        function attemptTests() {

            assert_equals(testTrack.track.cues.length, 3);

            for (var i = 0; i < testTrack.track.cues.length; i++) {

                testTrack.track.cues[i].onenter = t.step_func(cueEntered);

                testTrack.track.cues[i].onexit = t.step_func(cueExited);

            video.play();

        var cueCount = 0;

        function cueEntered(event) {

            var currentCue = event.target;

            // This cue is the currently active cue.

            assert_equals(currentCue, testTrack.track.activeCues[0]);

            assert_equals(currentCue.id, (cueCount + 1).toString());

        function cueExited() {

            ++cueCount;

            if (cueCount == testTrack.track.cues.length)

                t.done();

});

    </script>

</video>