test_peerConnection_sender_and_receiver_stats.html

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<head>

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

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

</head>

<body>

<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1355220",

    title: "RTCRtpSender.getStats() and RTCRtpReceiver.getStats()",

    visible: true

});

  const checkStats = (sndReport, rcvReport, kind) => {

    ok(sndReport instanceof window.RTCStatsReport, "sender stats are a RTCStatsReport");

    ok(rcvReport instanceof window.RTCStatsReport, "receiver stats are a RTCStatsReport");

    // Returns SSRCs and performs some checks

    let getSsrcs = (report, kind) => {

      return [...report.values()]

        .filter(stat => stat.type.endsWith("bound-rtp")).map(stat =>{

          isnot(parseInt(stat.id, 16), NaN,

            `id ${stat.id} is an opaque (hex) number`);

          is(stat.kind, kind, "kind of " + stat.id

              + " is expected type " + kind);

          return stat.ssrc;

      }).sort().join("|");

};

    let sndSsrcs = getSsrcs(sndReport, kind);

    let rcvSsrcs = getSsrcs(rcvReport, kind);

    ok(sndSsrcs, "sender SSRCs is not empty");

    ok(rcvSsrcs, "receiver SSRCs is not empty");

    is(sndSsrcs, rcvSsrcs, "sender SSRCs match receiver SSRCs");

};

  // This MUST be run after PC_*_WAIT_FOR_MEDIA_FLOW to ensure that we have RTP

  // before checking for RTCP.

  // It will throw UnsyncedRtcpError if it times out waiting for sync.

  runNetworkTest(function (options) {

    test = new PeerConnectionTest(options);

    test.chain.insertAfter("PC_REMOTE_WAIT_FOR_MEDIA_FLOW",

      async function PC_LOCAL_AND_REMOTE_CHECK_SENDER_RECEIVER_STATS(test) {

        await Promise.all([

          waitForSyncedRtcp(test.pcLocal._pc),

          waitForSyncedRtcp(test.pcRemote._pc),

]);

        let senders = test.pcLocal.getSenders();

        let receivers = test.pcRemote.getReceivers();

        is(senders.length, 2, "Have exactly two senders.");

        is(receivers.length, 2, "Have exactly two receivers.");

        for(let kind of ["audio", "video"]) {

          let senderStats =

              await senders.find(s => s.track.kind == kind).getStats();

          is(senders.filter(s => s.track.kind == kind).length, 1,

              "Exactly 1 sender of kind " + kind);

          let receiverStats =

              await receivers.find(r => r.track.kind == kind).getStats();

          is(receivers.filter(r => r.track.kind == kind).length, 1,

              "Exactly 1 receiver of kind " + kind);

          checkStats(senderStats, receiverStats, kind);

);

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

    return test.run();

});

</script>

</pre>

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