Quelle test_setSinkId.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/media/webrtc/tests/mochitests/test_setSinkId.html

<!DOCTYPE HTML>
<html>
<head>
  <script type="application/javascript" src="mediaStreamPlayback.js"></script>
</head>
<body>
<pre id="test">

<script>
  createHTML({
    title: "SetSinkId in HTMLMediaElement",
    bug: "934425",
  });

  const memoryReportPath = 'explicit/media/media-manager-aggregates';

  /**
   * Run a test to verify set sink id in audio element.
   */
  runTest(async () => {
    await pushPrefs(["media.setsinkid.enabled", true]);

    if (!SpecialPowers.getCharPref("media.audio_loopback_dev", "")) {
      ok(false, "No loopback device set by framework. Try --use-test-media-devices");
      return;
    }

    // Expose an audio output device.
    SpecialPowers.wrap(document).notifyUserGestureActivation();
    await navigator.mediaDevices.selectAudioOutput();

    const allDevices = await navigator.mediaDevices.enumerateDevices();
    const audioDevices = allDevices.filter(({kind}) => kind == 'audiooutput');
    is(audioDevices.length, 1, "Number of output devices found");

    const audio = createMediaElement("audio", "audio");
    document.body.appendChild(audio);

    is(audio.sinkId, "", "Initial value is empty string");

    const p = audio.setSinkId(audioDevices[0].deviceId);
    is(audio.sinkId, "", "Value is unchanged upon function return");
    is(await p, undefined, "promise resolves with undefined");
    is(audio.sinkId, audioDevices[0].deviceId, `Sink device is set, id: ${audio.sinkId}`);

    await audio.setSinkId(audioDevices[0].deviceId);
    ok(true, `Sink device is set for 2nd time for the same id: ${audio.sinkId}`);

    try {
      await audio.setSinkId("dummy sink id");
      ok(false, "Never enter here, this must fail");
    } catch (error) {
      ok(true, `Set sink id expected to fail: ${error}`);
      is(error.name, "NotFoundError", "Verify correct error");
    }

    const {usage: usage1} =
          await collectMemoryUsage(memoryReportPath); // Provided by head.js

    ok(usage1 > 0, "MediaManager memory usage should be non-zero to store \
device ids after enumerateDevices");

    const p2 = audio.setSinkId("");
    is(audio.sinkId, audioDevices[0].deviceId,
       'sinkId after setSinkId("") return');
    is(await p2, undefined,
       "promise resolution value when sinkId parameter is empty");
    is(audio.sinkId, "", 'sinkId after setSinkId("") resolution');

    await audio.setSinkId(audioDevices[0].deviceId);

    const {usage: usage2, reportCount} =
          await collectMemoryUsage(memoryReportPath);
    is(reportCount, 1,
       'Expect only one MediaManager to report in content processes.');
    is(usage2, usage1, "MediaManager memory usage should return to previous \
value after promise resolution");
  });

</script>
</pre>
</body>
</html>

Messung V0.5

¤ Dauer der Verarbeitung: 0.3 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.