<!DOCTYPE HTML>
<html>
<head>
  <script type="application/javascript" src="pc.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
  createHTML({
    bug: "1017888",
    title: "Renegotiation: remove audio track"
  });

  runNetworkTest(function (options) {
    const test = new PeerConnectionTest(options);
    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(
              new 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();
  });
</script>
</pre>
</body>
</html>
