usermedia-constraints-descriptors.tentative.https.html

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This test has a WPT meta file that expects 5 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/permission-element/usermedia/usermedia-constraints-descriptors.tentative.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>HTMLUserMediaElement Test: permission descriptors from constraints</title>

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

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

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

<script src="/resources/testdriver-vendor.js"></script>

<body>

<script>

function run_test(video, audio, expected_video, expected_audio, description) {

  return promise_test(async (t) => {

    const usermedia = document.createElement('usermedia');

    document.body.appendChild(usermedia);

    const stream_promise = new Promise((resolve) => {

      usermedia.onstream = resolve;

});

    usermedia.setConstraints({video: video, audio: audio});

    const permissions = [];

    if (video) {

      permissions.push(test_driver.set_permission({name: 'camera'}, 'granted'));

    if (audio) {

      permissions.push(test_driver.set_permission({name: 'microphone'}, 'granted'));

    await Promise.all(permissions);

    // Wait until the element is clickable.

    await new Promise(resolve => t.step_timeout(resolve, 600));

    await test_driver.click(usermedia);

    const e = await stream_promise;

    assert_true(e.target.stream instanceof MediaStream);

    assert_equals(e.target.stream.getVideoTracks().length, expected_video);

    assert_equals(e.target.stream.getAudioTracks().length, expected_audio);

  }, description);

run_test(true, undefined, 1, 0, "Setting video constraints triggers video stream");

run_test(undefined, true, 0, 1, "Setting audio constraints triggers audio stream");

run_test(true, true, 1, 1, "Setting both video and audio constraints triggers both streams");

run_test(true, false, 1, 0, "Setting video: true and audio: false triggers video stream");

run_test(false, true, 0, 1, "Setting video: false and audio: true triggers audio stream");

</script>

</body>