mediasource-worker-objecturl.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /media-source/dedicated-worker/mediasource-worker-objecturl.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<title>Test MediaSource object and objectUrl creation and load via that url should fail, with MediaSource in dedicated worker</title>

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

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

<script src="mediasource-message-util.js"></script>

<script>

async_test(t => {

  // Fail fast if MSE-in-Workers is not supported.

  assert_true(MediaSource.hasOwnProperty("canConstructInDedicatedWorker"), "MediaSource hasOwnProperty 'canConstructInDedicatedWorker'");

  assert_true(MediaSource.canConstructInDedicatedWorker, "MediaSource.canConstructInDedicatedWorker");

  let worker = new Worker("mediasource-worker-get-objecturl.js");

  worker.onmessage = t.step_func(e => {

    let subject = e.data.subject;

    assert_true(subject != undefined, "message must have a subject field");

    switch (subject) {

      case messageSubject.ERROR:

        assert_unreached("Worker error: " + e.data.info);

        break;

      case messageSubject.OBJECT_URL:

        const url = e.data.info;

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

        document.body.appendChild(video);

        video.onerror = t.step_func((target) => {

          assert_true(video.error != null);

          assert_equals(video.error.code, MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED);

          t.done();

});

        video.onended = t.unreached_func("video should not have successfully loaded and played to end");

        video.src = url;

        break;

      default:

        assert_unreached("Unexpected message subject: " + subject);

});

}, "Test main context load of a DedicatedWorker MediaSource object URL should fail");

if (MediaSource.hasOwnProperty("canConstructInDedicatedWorker") && MediaSource.canConstructInDedicatedWorker === true) {

  // If implementation claims support for MSE-in-Workers, then fetch and run

  // some tests directly in another dedicated worker and get their results

  // merged into those from this page.

  fetch_tests_from_worker(new Worker("mediasource-worker-objecturl.js"));

} else {

  // Otherwise, fetch and run a test that verifies lack of support of

  // MediaSource construction in another dedicated worker.

  fetch_tests_from_worker(new Worker("mediasource-worker-must-fail-if-unsupported.js"));

</script>

</html>