test_peerConnection_addAudioTrackToExistingVideoStream.html

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<html>

<head>

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

</head>

<body>

<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1246310",

    title: "Renegotiation: add audio track to existing video-only stream",

});

  runNetworkTest(function (options) {

    SimpleTest.requestCompleteLog();

    const audioContext = new AudioContext();

    // Start a tone so that the gUM call will record something even with

    // --use-test-media-devices.  TEST_AUDIO_FREQ matches the frequency of the

    // tone in fake microphone devices.

    const tone = new LoopbackTone(audioContext, TEST_AUDIO_FREQ);

    tone.start();

    const test = new PeerConnectionTest(options);

    test.chain.replace("PC_LOCAL_GUM",

        function PC_LOCAL_GUM_ATTACH_VIDEO_ONLY(test) {

          var localConstraints = {audio: true, video: true};

          test.setMediaConstraints([{video: true}], []);

          return getUserMedia(localConstraints)

            .then(s => test.originalGumStream = s)

            .then(() => is(test.originalGumStream.getAudioTracks().length, 1,

                           "Should have 1 audio track"))

            .then(() => is(test.originalGumStream.getVideoTracks().length, 1,

                           "Should have 1 video track"))

            .then(() => test.pcLocal.attachLocalTrack(

                          test.originalGumStream.getVideoTracks()[0],

                          test.originalGumStream));

},

);

    addRenegotiation(test.chain,

        function PC_LOCAL_ATTACH_SECOND_TRACK_AUDIO(test) {

          test.setMediaConstraints([{audio: true, video: true}], []);

          return test.pcLocal.attachLocalTrack(

                   test.originalGumStream.getAudioTracks()[0],

                   test.originalGumStream);

},

],

        function PC_CHECK_REMOTE_AUDIO_FLOW(test) {

          return test.pcRemote.checkReceivingToneFrom(audioContext, test.pcLocal);

);

    return test.run()

      .finally(() => tone.stop());

});

</script>

</pre>

</body>

</html>