src-clear-cues.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/track/track-element/src-clear-cues.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>track element changing "track URL" and clearing cues</title>

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

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

<div id=log></div>

<script>

(async_test(document.title+', set mode, add cue, set src')).step(function(){

    var track = document.createElement('track');

    var c = new VTTCue(0, 1, 'foo');

    c.id = 'id';

    track.track.addCue(c);

    assert_equals(track.track.cues, null, 'cues before setting src or mode');

    track.track.mode = 'showing';

    assert_equals(track.track.cues.length, 1, 'cues after setting mode');

    var cues = track.track.cues;

    track.src = 'data:,a';

    assert_equals(track.track.cues.length, 0, 'cues.length after setting src');

    assert_equals(track.track.cues, cues, 'track.track.cues sameness after setting src');

    assert_equals(c.id, 'id', 'liveness of removed cue');

    this.done();

});

(async_test(document.title+', set mode, set src, add cue, change src')).step(function(){

    var track = document.createElement('track');

    track.track.mode = 'showing';

    track.src = 'data:,a';

    var c = new VTTCue(0, 1, 'foo');

    c.id = 'id';

    track.track.addCue(c);

    assert_equals(track.track.cues.length, 1, 'cues.length before changing src');

    var cues = track.track.cues;

    track.src = 'data:,b';

    assert_equals(track.track.cues.length, 0, 'cues.length after changing src');

    assert_equals(track.track.cues, cues, 'track.track.cues sameness after changing src');

    assert_equals(c.id, 'id', 'liveness of removed cue');

    this.done();

});

(async_test(document.title+', set mode, add cue, change mode to disabled, set src')).step(function(){

    var track = document.createElement('track');

    track.track.mode = 'showing';

    var c = new VTTCue(0, 1, 'foo');

    c.id = 'id';

    track.track.addCue(c);

    var cues = track.track.cues;

    track.track.mode = 'disabled';

    track.src = 'data:,a';

    assert_equals(cues.length, 0, 'cues.length after changing src');

    assert_equals(c.id, 'id', 'liveness of removed cue');

    this.done();

});

</script>