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<meta charset=utf-8>
<meta name="timeout" content="long">
<title>RTCRtpReceiver.prototype.getStats</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});
    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
    const [track] = stream.getTracks();
    callee.addTrack(track, stream);

    const { receiver } = caller.addTransceiver('audio');

    exchangeIceCandidates(caller, callee);
    await exchangeOfferAnswer(caller, callee);
    await listenToConnected(callee);
    await waitForTrackUnmuted(receiver.track);
    const statsReport = await receiver.getStats();
    assert_true(!![...statsReport.values()].find(({type}) => type === 'inbound-rtp'));
  }, 'receiver.getStats() via addTransceiver should return stats report containing inbound-rtp stats');

  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});
    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
    const [track] = stream.getTracks();
    caller.addTrack(track, stream);

    exchangeIceCandidates(caller, callee);
    await exchangeOfferAnswer(caller, callee);
    const receiver = callee.getReceivers()[0];
    await listenToConnected(callee);
    await waitForTrackUnmuted(receiver.track);
    const statsReport = await receiver.getStats();
    assert_true(!![...statsReport.values()].find(({type}) => type === 'inbound-rtp'));
  }, 'receiver.getStats() via addTrack should return stats report containing inbound-rtp stats');

  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});
    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
    const [track] = stream.getTracks();
    caller.addTrack(track, stream);

    exchangeIceCandidates(caller, callee);
    await exchangeOfferAnswer(caller, callee);
    const [receiver] = callee.getReceivers();
    await listenToConnected(callee);
    await waitForTrackUnmuted(receiver.track);
    const [transceiver] = callee.getTransceivers();
    const statsPromiseFirst = receiver.getStats();
    transceiver.stop();
    const statsReportFirst = await statsPromiseFirst;
    const statsReportSecond = await receiver.getStats();
    assert_true(!![...statsReportFirst.values()].find(({type}) => type === 'inbound-rtp'));
    assert_false(!![...statsReportSecond.values()].find(({type}) => type === 'inbound-rtp'));
  }, 'receiver.getStats() should work on a stopped transceiver but not have inbound-rtp objects');

  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});
    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
    const [track] = stream.getTracks();
    caller.addTrack(track, stream);

    exchangeIceCandidates(caller, callee);
    await exchangeOfferAnswer(caller, callee);
    const [receiver] = callee.getReceivers();
    await listenToConnected(callee);
    await waitForTrackUnmuted(receiver.track);
    const statsReportFirst = await receiver.getStats();
    callee.close();
    const statsReportSecond = await receiver.getStats();
    assert_true(!![...statsReportFirst.values()].find(({type}) => type === 'inbound-rtp'));
    assert_false(!![...statsReportSecond.values()].find(({type}) => type === 'inbound-rtp'));
  }, 'receiver.getStats() should work with a closed PeerConnection but not have inbound-rtp objects');

  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});
    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
    const [track] = stream.getTracks();
    caller.addTrack(track, stream);

    exchangeIceCandidates(caller, callee);
    await exchangeOfferAnswer(caller, callee);
    const receiver = callee.getReceivers()[0];
    await listenToConnected(callee);
    await waitForTrackUnmuted(receiver.track);
    const statsReport = await receiver.getStats();
    assert_true(!![...statsReport.values()].find(({type}) => type === 'candidate-pair'));
    assert_true(!![...statsReport.values()].find(({type}) => type === 'local-candidate'));
    assert_true(!![...statsReport.values()].find(({type}) => type === 'remote-candidate'));
  }, 'receiver.getStats() should return stats report containing ICE candidate stats');

</script>