track-default-attribute.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-default-attribute.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>A track with the "default" attribute loads automatically</title>

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

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

<video>

  <track kind="captions" src="resources/default-styles.vtt">

  <track kind="captions" src="resources/metadata-area.vtt">

  <track kind="captions" src="resources/webvtt-file.vtt" id="default" default>

  <script>

  async_test(function(t) {

    var timer = null;

    var tracks = document.querySelectorAll("track");

    for (var track of tracks) {

      track.onload = t.step_func(function() {

        assert_equals(event.target.readyState, HTMLTrackElement.LOADED);

        assert_equals(event.target.id, "default");

        assert_true(event.target.default);

        // End the test after a brief pause so we allow other tracks to load if they will.

        if (timer)

          clearTimeout(timer);

        timer = t.step_timeout(t.step_func_done(), 200);

});

});

  </script>

</video>