webrtc/protocol/bundle.https.html

<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection BUNDLE</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../RTCPeerConnection-helper.js"></script>
<script>
'use strict';

promise_test(async t => {
  const caller = new RTCPeerConnection();
  t.add_cleanup(() => caller.close());
  const callee = new RTCPeerConnection();
  t.add_cleanup(() => callee.close());
  const stream = await getNoiseStream({audio: true, video: true});
  t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
  stream.getTracks().forEach(track => caller.addTrack(track, stream));

  let metadataToBeLoaded;
  callee.ontrack = (e) => {
    const stream = e.streams[0];
    const v = document.createElement('video');
    v.autoplay = true;
    v.srcObject = stream;
    v.id = stream.id
    metadataToBeLoaded = new Promise((resolve) => {
      v.addEventListener('loadedmetadata', () => {
        resolve();
      });
    });
  };
  exchangeIceCandidates(caller, callee);
  const offer = await caller.createOffer();
  // remove the a=group:BUNDLE from the SDP when signaling.
  const sdp = offer.sdp.replace(/a=group:BUNDLE (.*)\r\n/, '');
  await callee.setRemoteDescription({type: 'offer', sdp});
  await caller.setLocalDescription(offer);

  const answer = await callee.createAnswer();
  await caller.setRemoteDescription(answer);
  await callee.setLocalDescription(answer);

  await metadataToBeLoaded;
  const senders = caller.getSenders();
  const dtlsTransports = senders.map(s => s.transport);
  assert_equals(dtlsTransports.length, 2);
  assert_not_equals(dtlsTransports[0], dtlsTransports[1]);

  const iceTransports = dtlsTransports.map(t => t.iceTransport);
  assert_equals(iceTransports.length, 2);
  assert_not_equals(iceTransports[0], iceTransports[1]);
}, 'not negotiating BUNDLE creates two separate ice and dtls transports');

promise_test(async t => {
  const caller = new RTCPeerConnection();
  t.add_cleanup(() => caller.close());
  const callee = new RTCPeerConnection();
  t.add_cleanup(() => callee.close());
  const stream = await getNoiseStream({audio: true, video: true});
  t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
  stream.getTracks().forEach(track => caller.addTrack(track, stream));

  let metadataToBeLoaded;
  callee.ontrack = (e) => {
    const stream = e.streams[0];
    const v = document.createElement('video');
    v.autoplay = true;
    v.srcObject = stream;
    v.id = stream.id
    metadataToBeLoaded = new Promise((resolve) => {
      v.addEventListener('loadedmetadata', () => {
        resolve();
      });
    });
  };
  exchangeIceCandidates(caller, callee);
  const offer = await caller.createOffer();
  await callee.setRemoteDescription(offer);
  await caller.setLocalDescription(offer);
  const secondTransport = caller.getSenders()[1].transport; // Save a reference to this transport.

  const answer = await callee.createAnswer();
  await caller.setRemoteDescription(answer);
  await callee.setLocalDescription(answer);

  await metadataToBeLoaded;
  const senders = caller.getSenders();
  const dtlsTransports = senders.map(s => s.transport);
  assert_equals(dtlsTransports.length, 2);
  assert_equals(dtlsTransports[0], dtlsTransports[1]);
  assert_not_equals(dtlsTransports[1], secondTransport);
  assert_equals(secondTransport.state, 'closed');
}, 'bundles on the first transport and closes the second');

promise_test(async t => {
  const sdp = `v=0
o=- 0 3 IN IP4 127.0.0.1
s=-
t=0 0
a=fingerprint:sha-256 A7:24:72:CA:6E:02:55:39:BA:66:DF:6E:CC:4C:D8:B0:1A:BF:1A:56:65:7D:F4:03:AD:7E:77:43:2A:29:EC:93
a=ice-ufrag:ETEn
a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l
m=audio 9 UDP/TLS/RTP/SAVPF 111
c=IN IP4 0.0.0.0
a=rtcp-mux
a=sendonly
a=mid:audio
a=rtpmap:111 opus/48000/2
a=setup:actpass
m=video 9 UDP/TLS/RTP/SAVPF 100
c=IN IP4 0.0.0.0
a=rtcp-mux
a=sendonly
a=mid:video
a=rtpmap:100 VP8/90000
a=fmtp:100 max-fr=30;max-fs=3600
a=setup:actpass
`;
  const pc = new RTCPeerConnection({ bundlePolicy: 'max-bundle' });
  t.add_cleanup(() => pc.close());
  await pc.setRemoteDescription({ type: 'offer', sdp });
  await pc.setLocalDescription();
  const transceivers = pc.getTransceivers();
  assert_equals(transceivers.length, 2);
  assert_false(transceivers[0].stopped);
  assert_true(transceivers[1].stopped);
}, 'max-bundle with an offer without bundle only negotiates the first m-line');
</script>