test_peerConnection_verifyDescriptions.html

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

</head>

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<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1264479",

    title: "PeerConnection verify current and pending descriptions in legacy mode"

});

  // Mostly covered by WPT tests these days, except for in our legacy mode

  const isSimilarDescription = (d1, d2, msg) => {

    isnot(d1, d2, msg + " — not the same object");

    is(d1.type, d2.type, msg + " — but same type");

    is(d1.sdp, d2.sdp, msg + " — and same sdp");

  runNetworkTest(async () => {

    await SpecialPowers.pushPrefEnv({

      set: [['media.peerconnection.description.legacy.enabled', true]]

});

    const pc1 = new RTCPeerConnection();

    const pc2 = new RTCPeerConnection();

    const add = (pc, can, failed) => can && pc.addIceCandidate(can).catch(failed);

    pc1.onicecandidate = e => add(pc2, e.candidate, generateErrorCallback());

    pc2.onicecandidate = e => add(pc1, e.candidate, generateErrorCallback());

    const v1 = createMediaElement('video', 'v1');

    const v2 = createMediaElement('video', 'v2');

    const stream = await navigator.mediaDevices.getUserMedia({

      video: true, audio: true

});

    v1.srcObject = stream;

    for (const track of stream.getTracks()) {

      pc1.addTrack(track, stream);

    await pc1.setLocalDescription();

    is(pc1.currentLocalDescription, null, "pc1 currentLocalDescription is null");

    ok(pc1.pendingLocalDescription, "pc1 pendingLocalDescription is set");

    ok(pc1.localDescription, "pc1 localDescription is set");

    isSimilarDescription(pc1.pendingLocalDescription, pc1.pendingLocalDescription, "pendingLocalDescription");

    isSimilarDescription(pc1.localDescription, pc1.localDescription, "localDescription");

    isSimilarDescription(pc1.localDescription, pc1.pendingLocalDescription, "local and pending");

    await pc2.setRemoteDescription(pc1.localDescription);

    is(pc2.currentRemoteDescription, null, "pc2 currentRemoteDescription is null");

    ok(pc2.pendingRemoteDescription, "pc2 pendingRemoteDescription is set");

    ok(pc2.remoteDescription, "pc2 remoteDescription is set");

    isSimilarDescription(pc2.pendingRemoteDescription, pc2.pendingRemoteDescription, "pendingRemoteDescription");

    isSimilarDescription(pc2.remoteDescription, pc2.remoteDescription, "remoteDescription");

    isSimilarDescription(pc2.remoteDescription, pc2.pendingRemoteDescription, "remote and pending");

    await pc2.setLocalDescription();

    ok(pc2.currentLocalDescription, "pc2 currentLocalDescription is set");

    is(pc2.pendingLocalDescription, null, "pc2 pendingLocalDescription is null");

    ok(pc2.localDescription, "pc2 localDescription is set");

    isSimilarDescription(pc2.currentLocalDescription, pc2.currentLocalDescription, "currentLocalDescription");

    isSimilarDescription(pc2.localDescription, pc2.localDescription, "localDescription");

    isSimilarDescription(pc2.localDescription, pc2.currentLocalDescription, "local and current");

    await pc1.setRemoteDescription(pc2.localDescription);

    ok(pc1.currentRemoteDescription, "pc1 currentRemoteDescription is set");

    is(pc1.pendingRemoteDescription, null, "pc1 pendingRemoteDescription is null");

    ok(pc1.remoteDescription, "pc1 remoteDescription is set");

    isSimilarDescription(pc1.currentRemoteDescription, pc1.currentRemoteDescription, "currentRemoteDescription");

    isSimilarDescription(pc1.remoteDescription, pc1.remoteDescription, "remoteDescription");

    isSimilarDescription(pc1.remoteDescription, pc1.currentRemoteDescription, "remote and current");

});

</script>

</pre>

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