test_peerConnection_trackless_sender_stats.html

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<html>

<head>

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

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

</head>

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<pre id="test">

<script type="application/javascript">

  createHTML({

    bug: "1452673",

    title: "Trackless RTCRtpSender.getStats()",

    visible: true

});

  // Calling getstats() on a trackless RTCRtpSender should yield an empty

  // stats report.  When track stats are added in the future, the stats

  // for the removed tracks should continue to appear.

  runNetworkTest(function (options) {

    const test = new PeerConnectionTest(options);

    test.chain.removeAfter("PC_REMOTE_WAIT_FOR_MEDIA_FLOW");

    test.chain.append(

      async function PC_LOCAL_AND_REMOTE_TRACKLESS_SENDER_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"]) {

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

              "Exactly 1 sender of kind " + kind);

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

              "Exactly 1 receiver of kind " + kind);

        // Remove tracks from senders

        for (const sender of senders) {

          await sender.replaceTrack(null);

          is(sender.track, null, "Sender track removed");

          let stats = await sender.getStats();

          ok(stats instanceof window.RTCStatsReport, "Stats is instance of RTCStatsReport");

          // Number of stats in the report. This should be 0.

          is(stats.size, 0, "Trackless sender stats report is empty");

);

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

    return test.run();

});

</script>

</pre>

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</html>