track-remove-track.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/track-remove-track.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

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

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

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

    </head>

    <body>

        <script>

            async_test(function(test)

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

                var track;

                function trackRemoved()

                    assert_equals(event.target, video.textTracks);

                    assert_equals(event instanceof window.TrackEvent, true);

                    assert_equals(event.track, track);

                    test.done();

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

                video.appendChild(trackElement);

                trackElement.src = 'resources/webvtt-file.vtt';

                trackElement.track.mode = 'hidden';

                assert_equals(video.textTracks.length, 1);

                track = video.textTracks[0];

                video.removeChild(trackElement);

                video.textTracks.addEventListener("removetrack", test.step_func(trackRemoved));

            }, "Tests that the 'removetrack' event is fired when an out-of-band TextTrack is removed.");

        </script>

    </body>

</html>