test_getUserMedia_cubebDisabledFakeStreams.html

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<!DOCTYPE HTML>

<html>

<head>

  <script type="application/javascript" src="mediaStreamPlayback.js"></script>

</head>

<body>

<pre id="test">

<script type="application/javascript">

  createHTML({

    title: "getUserMedia fake stream with Cubeb Disabled Test",

    bug: "1443525"

});

/**

   * Run a test to verify we can still return a fake stream even if we cannot

   * get a cubeb context. See also Bug 1434477

*/

  runTest(async function () {

    info("Get user media with cubeb disabled and fake tracks starting");

    // Push prefs to ensure no cubeb context and fake streams

    await pushPrefs(["media.cubeb.force_null_context", true],

                    ["media.navigator.streams.fake", true],

                    ['media.audio_loopback_dev', '']);

    let testAudio = createMediaElement('audio', 'testAudio');

    // Request audio only, to avoid cams

    let constraints = {audio: true, video: false};

    let stream;

    try {

      stream = await getUserMedia(constraints);

    } catch (e) {

      // We've got no audio backend, so we expect gUM to fail

      ok(false, `Did not expect to fail, but got ${e}`);

      return;

    ok(stream, "getUserMedia should get a stream!");

    let playback = new MediaStreamPlayback(testAudio, stream);

    await playback.playMedia(false);

});

</script>

</pre>

</body>

</html>