getTrackById.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/interfaces/TextTrackList/getTrackById.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>TextTrackList.getTrackById</title>

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

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

<div id=log></div>

<script>

test(function(){

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

    var track1 = video.addTextTrack('subtitles');

    var track2 = video.addTextTrack('subtitles');

    assert_equals(track1.id, '');

    assert_equals(track2.id, '');

    assert_equals(video.textTracks.getTrackById(''), track1);

    assert_equals(video.textTracks.getTrackById('fake-id'), null);

});

</script>