test_peerConnection_removeAudioTrack.html

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<head>

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

</head>

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<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1017888",

    title: "Renegotiation: remove audio track"

});

  runNetworkTest(function (options) {

    const test = new PeerConnectionTest(options);

    const audioContext = new AudioContext();

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

    // --use-test-media-devices.

    const tone = new LoopbackTone(audioContext, TEST_AUDIO_FREQ);

    tone.start();

    let receivedTrack, analyser, freq;

    addRenegotiation(test.chain,

        function PC_REMOTE_SETUP_ANALYSER(test) {

          is(test.pcRemote._pc.getReceivers().length, 1,

             "pcRemote should have one receiver before renegotiation");

          receivedTrack = test.pcRemote._pc.getReceivers()[0].track;

          is(receivedTrack.readyState, "live",

             "The received track should be live");

          analyser = new AudioStreamAnalyser(

              audioContext, new MediaStream([receivedTrack]));

          freq = analyser.binIndexForFrequency(TEST_AUDIO_FREQ);

          return analyser.waitForAnalysisSuccess(arr => arr[freq] > 200);

},

        function PC_LOCAL_REMOVE_AUDIO_TRACK(test) {

          test.setOfferOptions({ offerToReceiveAudio: true });

          return test.pcLocal.removeSender(0);

},

],

        function PC_REMOTE_CHECK_FLOW_STOPPED(test) {

          // Simply removing a track is not enough to cause it to be

          // signaled as ended. Spec may change though.

          // TODO: One last check of the spec is in order

          is(receivedTrack.readyState, "live",

             "The received track should not have ended");

          return analyser.waitForAnalysisSuccess(arr => arr[freq] < 50);

},

);

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

    return test.run()

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

});

</script>

</pre>

</body>

</html>