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<!DOCTYPE HTML>
<html>

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

<body>
  <pre id="test">
<script type="application/javascript">
  createHTML({
    bug: "1401592",
    title: "Test that glean is recording stats as expected",
    visible: true
  });

  const { AppConstants } = SpecialPowers.ChromeUtils.importESModule(
    "resource://gre/modules/AppConstants.sys.mjs"
  );

  async function gleanResetTestValues() {
    return SpecialPowers.spawnChrome([], async () => {
      await Services.fog.testFlushAllChildren();
      Services.fog.testResetFOG();
      }
    )
  };


  async function getAllWarningRates() {
    return {
      warnNoGetparameters:
        await GleanTest.rtcrtpsenderSetparameters.warnNoGetparameters.testGetValue(),
      warnLengthChanged:
        await GleanTest.rtcrtpsenderSetparameters.warnLengthChanged.testGetValue(),
      warnNoTransactionid:
        await GleanTest.rtcrtpsenderSetparameters.warnNoTransactionid.testGetValue(),
    };
  }

  const tests = [
    async function checkRTCRtpSenderCount() {
      const pc = new RTCPeerConnection();
      const oldCount = await GleanTest.rtcrtpsender.count.testGetValue() ?? 0;
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      const countDiff = await GleanTest.rtcrtpsender.count.testGetValue() - oldCount;
      is(countDiff, 1, "Glean should have recorded the creation of a single RTCRtpSender");
    },

    async function checkRTCRtpSenderSetParametersCompatCount() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const oldCount = await GleanTest.rtcrtpsender.countSetparametersCompat.testGetValue() ?? 0;
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      const countDiff = await GleanTest.rtcrtpsender.countSetparametersCompat.testGetValue() - oldCount;
      is(countDiff, 1, "Glean should have recorded the creation of a single RTCRtpSender that uses the setParameters compat mode");
    },

    async function checkSendEncodings() {
      const pc = new RTCPeerConnection();
      const oldRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      const newRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      is(newRate.denominator, oldRate.denominator + 1, "Glean should have recorded the creation of a single RTCRtpSender");
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded the use of sendEncodings");
    },

    async function checkAddTransceiverNoSendEncodings() {
      const pc = new RTCPeerConnection();
      const oldRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      const { sender } = pc.addTransceiver('video');
      const newRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      is(newRate.denominator, oldRate.denominator + 1, "Glean should have recorded the creation of a single RTCRtpSender");
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded a use of sendEncodings");
    },

    async function checkAddTrack() {
      const pc = new RTCPeerConnection();
      const oldRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc.addTrack(stream.getTracks()[0]);
      const newRate = await GleanTest.rtcrtpsender.usedSendencodings.testGetValue();
      is(newRate.denominator, oldRate.denominator + 1, "Glean should have recorded the creation of a single RTCRtpSender");
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded a use of sendEncodings");
    },

    async function checkGoodSetParametersCompatMode() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      const oldWarningRates = await getAllWarningRates();
      await sender.setParameters(sender.getParameters());
      const newWarningRates = await getAllWarningRates();
      isDeeply(oldWarningRates, newWarningRates);
    },

    async function checkBadSetParametersNoGetParametersWarning() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });

      let oldRate = await GleanTest.rtcrtpsenderSetparameters.warnNoGetparameters.testGetValue();
      let oldBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoGetparameters["example.com"].testGetValue() || 0;

      await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });

      let newRate = await GleanTest.rtcrtpsenderSetparameters.warnNoGetparameters.testGetValue();
      let newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoGetparameters["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded a warning in setParameters due to lack of a getParameters call");

      if (AppConstants.EARLY_BETA_OR_EARLIER) {
        is(newBlameCount, oldBlameCount + 1, "Glean should have recorded that example.com encountered this warning");
      } else {
        is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning, because we're running this test on a stable channel");
      }

      oldRate = newRate;
      oldBlameCount = newBlameCount;

      // Glean should only record the warning once per sender!
      await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });

      newRate = await GleanTest.rtcrtpsenderSetparameters.warnNoGetparameters.testGetValue();
      newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoGetparameters["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another warning in setParameters due to lack of a getParameters call");
      is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning a second time, since this is the same sender");
    },

    async function checkBadSetParametersLengthChangedWarning() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });

      let oldRate = await GleanTest.rtcrtpsenderSetparameters.warnLengthChanged.testGetValue();
      let oldBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameLengthChanged["example.com"].testGetValue() || 0;

      let params = sender.getParameters();
      params.encodings.pop();
      await sender.setParameters(params);

      let newRate = await GleanTest.rtcrtpsenderSetparameters.warnLengthChanged.testGetValue();
      let newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameLengthChanged["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded a warning due to a length change in encodings");

      if (AppConstants.EARLY_BETA_OR_EARLIER) {
        is(newBlameCount, oldBlameCount + 1, "Glean should have recorded that example.com encountered this warning");
      } else {
        is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning, because we're running this test on a stable channel");
      }

      oldRate = newRate;
      oldBlameCount = newBlameCount;

      // Glean should only record the warning once per sender!
      params = sender.getParameters();
      params.encodings.pop();
      await sender.setParameters(params);

      newRate = await GleanTest.rtcrtpsenderSetparameters.warnLengthChanged.testGetValue();
      newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameLengthChanged["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another warning due to a length change in encodings");
      is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning a second time, since this is the same sender");
    },

    async function checkBadSetParametersRidChangedWarning() {
      // This pref does not let rid change errors slide anymore
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });

      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();

      let params = sender.getParameters();
      params.encodings[1].rid = "foo";
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error due to a rid change in encodings");

      // Glean should only record the error once per sender!
      params = sender.getParameters();
      params.encodings[1].rid = "bar";
      oldRate = newRate;
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error due to a rid change in encodings");
    },

    async function checkBadSetParametersNoTransactionIdWarning() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });

      let oldRate = await GleanTest.rtcrtpsenderSetparameters.warnNoTransactionid.testGetValue();
      let oldBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoTransactionid["example.com"].testGetValue() || 0;

      await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });

      let newRate = await GleanTest.rtcrtpsenderSetparameters.warnNoTransactionid.testGetValue();
      let newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoTransactionid["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded a warning due to missing transactionId in setParameters");

      if (AppConstants.EARLY_BETA_OR_EARLIER) {
        is(newBlameCount, oldBlameCount + 1, "Glean should have recorded that example.com encountered this warning");
      } else {
        is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning, because we're running this test on a stable channel");
      }

      oldRate = newRate;
      oldBlameCount = newBlameCount;

      // Glean should only record the warning once per sender!
      await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });

      newRate = await GleanTest.rtcrtpsenderSetparameters.warnNoTransactionid.testGetValue();
      newBlameCount = await GleanTest.rtcrtpsenderSetparameters.blameNoTransactionid["example.com"].testGetValue() || 0;

      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another warning due to missing transactionId in setParameters");
      is(newBlameCount, oldBlameCount, "Glean should not have recorded that example.com encountered this warning a second time, since this is the same sender");
    },

    async function checkBadSetParametersLengthChangedError() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", false]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failLengthChanged.testGetValue();
      let params = sender.getParameters();
      params.encodings.pop();
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failLengthChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error due to a length change in encodings");

      // Glean should only record the error once per sender!
      params = sender.getParameters();
      params.encodings.pop();
      oldRate = newRate;
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failLengthChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error due to a length change in encodings");
    },

    async function checkBadSetParametersRidChangedError() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", false]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();
      let params = sender.getParameters();
      params.encodings[1].rid = "foo";
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error due to a rid change in encodings");

      // Glean should only record the error once per sender!
      params = sender.getParameters();
      params.encodings[1].rid = "bar";
      oldRate = newRate;
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failRidChanged.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error due to a rid change in encodings");
    },

    async function checkBadSetParametersNoGetParametersError() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", false]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failNoGetparameters.testGetValue();
      try {
        await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failNoGetparameters.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error in setParameters due to lack of a getParameters call");

      // Glean should only record the error once per sender!
      oldRate = newRate;
      try {
        await sender.setParameters({ encodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }] });
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failNoGetparameters.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error in setParameters due to lack of a getParameters call");
    },

    async function checkBadSetParametersStaleTransactionIdError() {
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", false]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failStaleTransactionid.testGetValue();
      let params = sender.getParameters();
      // Cause transactionId to be stale
      await pc.createOffer();
      // ...but make sure there is a recent getParameters call
      sender.getParameters();
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failStaleTransactionid.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error due to stale transactionId in setParameters");

      // Glean should only record the error once per sender!
      oldRate = newRate;
      params = sender.getParameters();
      // Cause transactionId to be stale
      await pc.createOffer();
      // ...but make sure there is a recent getParameters call
      sender.getParameters();
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failStaleTransactionid.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error due to stale transactionId in setParameters");
    },

    async function checkBadSetParametersNoEncodingsError() {
      // If we do not allow the old setParameters, this will fail the length check
      // instead.
      await pushPrefs(
        ["media.peerconnection.allow_old_setParameters", true]);
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failNoEncodings.testGetValue();
      let params = sender.getParameters();
      params.encodings = [];
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failNoEncodings.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded an error due to empty encodings in setParameters");

      // Glean should only record the error once per sender!
      oldRate = newRate;
      params = sender.getParameters();
      params.encodings = [];
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failNoEncodings.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded an error due empty encodings in setParameters");
    },

    async function checkBadSetParametersOtherError() {
      const pc = new RTCPeerConnection();
      const { sender } = pc.addTransceiver('video', {
        sendEncodings: [{ rid: "0" }, { rid: "1" }, { rid: "2" }]
      });
      let oldRate = await GleanTest.rtcrtpsenderSetparameters.failOther.testGetValue();
      let params = sender.getParameters();
      params.encodings[0].scaleResolutionDownBy = 0.5;
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      let newRate = await GleanTest.rtcrtpsenderSetparameters.failOther.testGetValue();
      is(newRate.numerator, oldRate.numerator + 1, "Glean should have recorded an error due to some other failure");

      // Glean should only record the error once per sender!
      oldRate = newRate;
      params = sender.getParameters();
      params.encodings[0].scaleResolutionDownBy = 0.5;
      try {
        await sender.setParameters(params);
      } catch (e) {
      }
      newRate = await GleanTest.rtcrtpsenderSetparameters.failOther.testGetValue();
      is(newRate.numerator, oldRate.numerator, "Glean should not have recorded another error due to some other failure");
    },

    async function checkUlpfecNegotiated() {
      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();

      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      let offer = await pc1.createOffer();
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // Validate logging shows ulpfec negotiated and preferred video VP8
      let ulpfecNotNegotiated = await GleanTest.codecStats.ulpfecNegotiated.not_negotiated.testGetValue() || 0;
      ok(ulpfecNotNegotiated == 0, "checkUlpfecNegotiated glean should not count not_negotiated");
      let ulpfecNegotiated = await GleanTest.codecStats.ulpfecNegotiated.negotiated.testGetValue() || 0;
      ok(ulpfecNegotiated == 2, "checkUlpfecNegotiated glean should show ulpfec negotiated");
      let preferredVideoCodec = await GleanTest.codecStats.videoPreferredCodec.VP8.testGetValue() || 0;
      ok(preferredVideoCodec == 2, "checkUlpfecNegotiated glean should show preferred video codec VP8");
    },

    async function checkNoUlpfecNegotiated() {

      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      let offer = await pc1.createOffer();
      const payloadType = sdputils.findCodecId(offer.sdp, "ulpfec");
      offer.sdp = sdputils.removeCodec(offer.sdp, payloadType);
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // Validate logging shows ulpfec not negotiated and preferred video VP8
      let ulpfecNotNegotiated = await GleanTest.codecStats.ulpfecNegotiated.not_negotiated.testGetValue() || 0;
      ok(ulpfecNotNegotiated == 2, "checkNoUlpfecNegotiated glean should count not_negotiated");
      let ulpfecNegotiated = await GleanTest.codecStats.ulpfecNegotiated.negotiated.testGetValue() || 0;
      ok(ulpfecNegotiated == 0, "checkNoUlpfecNegotiated glean should not show ulpfec negotiated " + ulpfecNegotiated);
      let preferredVideoCodec = await GleanTest.codecStats.videoPreferredCodec.VP8.testGetValue() || 0;
      ok(preferredVideoCodec == 2, "checkNoUlpfecNegotiated glean should show preferred video codec VP8");
    },

    async function checkFlexfecOffered() {

      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      let offer = await pc1.createOffer();
      offer.sdp = offer.sdp.replaceAll('VP8','flexfec');
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // Validate logging shows flexfec counted once ulpfec negotiated twice and preferred video VP9 since no VP8 was offered.
      let flexfecOffered = await GleanTest.codecStats.otherFecSignaled.flexfec.testGetValue() || 0;
      ok(flexfecOffered == 1, "checkFlexfecOffered glean should count flexfec being offered" + flexfecOffered);
      let ulpfecNegotiated = await GleanTest.codecStats.ulpfecNegotiated.negotiated.testGetValue() || 0;
      ok(ulpfecNegotiated == 2, "checkUlpfecNegotiated glean should show ulpfec negotiated");
      let preferredVideoCodec = await GleanTest.codecStats.videoPreferredCodec.VP9.testGetValue() || 0;
      ok(preferredVideoCodec == 2, "checkFlexfecOffered glean should show preferred video codec VP9");
    },

    async function checkPreferredVideoCodec() {

      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      let offer = await pc1.createOffer();
      // Set a video codec that does not exist to simulate receiving codecs we dont support
      // and verify it gets logged.
      offer.sdp = offer.sdp.replaceAll('VP8','AVADA1');
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // We should show AVADA1 as the preferred codec from the offer and the answer should prefer VP9 since VP8 was removed.
      let preferredVideoCodecAVADA1 = await GleanTest.codecStats.videoPreferredCodec.AVADA1.testGetValue() || 0;
      ok(preferredVideoCodecAVADA1 == 1, "checkPreferredVideoCodec glean should show preferred video codec AVADA1" + preferredVideoCodecAVADA1);
      let preferredVideoCodecVP9 = await GleanTest.codecStats.videoPreferredCodec.VP9.testGetValue() || 0;
      ok(preferredVideoCodecVP9 == 1, "checkPreferredVideoCodec glean should show preferred video codec VP9" + preferredVideoCodecVP9);
    },

    async function checkPreferredAudioCodec() {

      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      let offer = await pc1.createOffer();
      // Set an audio codec that does not exist to simulate receiving codecs we dont support
      // and verify it gets logged.
      offer.sdp = offer.sdp.replaceAll('opus','FAKECodec');
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // We should show CN as the preferred codec from the offer and the answer should prefer G722 since opus was removed.
      let preferredAudioCodecFAKECodec = await GleanTest.codecStats.audioPreferredCodec.FAKECodec.testGetValue() || 0;
      ok(preferredAudioCodecFAKECodec == 1, "checkPreferredAudioCodec Glean should show preferred audio codec FAKECodec " + preferredAudioCodecFAKECodec);
      let preferredAudioCodecG722 = await GleanTest.codecStats.audioPreferredCodec.G722.testGetValue() || 0;
      ok(preferredAudioCodecG722 == 1, "checkPreferredAudioCodec Glean should show preferred audio codec G722 " + preferredAudioCodecG722);
    },

    async function checkLoggingMultipleTransceivers() {
      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();

      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      const sender = pc1.addTrack(stream.getTracks()[0]);
      pc1.addTransceiver(stream.getTracks()[0]);
      pc1.addTransceiver(stream.getTracks()[0]);

      let offer = await pc1.createOffer();
      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      let answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      pc1.setLocalDescription(offer);
      pc2.setRemoteDescription(offer);
      answer = await pc2.createAnswer();
      pc2.setLocalDescription(answer);
      pc1.setRemoteDescription(answer);

      // Validate logging shows for each transciever but is not duplicated with the renegotiation
      let ulpfecNotNegotiated = await GleanTest.codecStats.ulpfecNegotiated.not_negotiated.testGetValue() || 0;
      ok(ulpfecNotNegotiated == 0, "checkLoggingMultipleTransceivers glean should not count not_negotiated");
      let ulpfecNegotiated = await GleanTest.codecStats.ulpfecNegotiated.negotiated.testGetValue() || 0;
      ok(ulpfecNegotiated == 6, "checkLoggingMultipleTransceivers glean should show ulpfec negotiated " + ulpfecNegotiated);
      let preferredVideoCodec = await GleanTest.codecStats.videoPreferredCodec.VP8.testGetValue() || 0;
      ok(preferredVideoCodec == 6, "checkLoggingMultipleTransceivers glean should show preferred video codec VP8 " + preferredVideoCodec);
    },

    async function checkDtlsHandshakeSuccess() {
      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      let client_successes = await GleanTest.webrtcdtls.clientHandshakeResult.SUCCESS.testGetValue() || 0;
      let server_successes = await GleanTest.webrtcdtls.serverHandshakeResult.SUCCESS.testGetValue() || 0;
      let cipher_count = await GleanTest.webrtcdtls.cipher["0x1301"].testGetValue() || 0;
      let srtp_cipher_count = await GleanTest.webrtcdtls.srtpCipher["0x0007"].testGetValue() || 0;
      is(client_successes, 0);
      is(server_successes, 0);
      is(cipher_count, 0);
      is(srtp_cipher_count, 0);

      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      pc1.addTrack(stream.getTracks()[0]);

      await connect(pc1, pc2, 32000, "DTLS connected", true, true);

      client_successes = await GleanTest.webrtcdtls.clientHandshakeResult.SUCCESS.testGetValue() || 0;
      server_successes = await GleanTest.webrtcdtls.serverHandshakeResult.SUCCESS.testGetValue() || 0;
      cipher_count = await GleanTest.webrtcdtls.cipher["0x1301"].testGetValue() || 0;
      srtp_cipher_count = await GleanTest.webrtcdtls.srtpCipher["0x0007"].testGetValue() || 0;
      is(client_successes, 1);
      is(server_successes, 1);
      is(cipher_count, 2);
      is(srtp_cipher_count, 2);
    },

    async function checkDtlsCipherPrefs() {
      await withPrefs([["security.tls13.aes_128_gcm_sha256", false],
                       ["security.tls13.aes_256_gcm_sha384", false],
                       ["security.tls13.chacha20_poly1305_sha256", true]],
        async () => {
          const pc1 = new RTCPeerConnection();
          const pc2 = new RTCPeerConnection();
          await gleanResetTestValues();
          let cipher_count = await GleanTest.webrtcdtls.cipher["0x1303"].testGetValue() || 0;
          is(cipher_count, 0);

          const stream = await navigator.mediaDevices.getUserMedia({ video: true });
          pc1.addTrack(stream.getTracks()[0]);

          await connect(pc1, pc2, 32000, "DTLS connected", true, true);

          cipher_count = await GleanTest.webrtcdtls.cipher["0x1303"].testGetValue() || 0;
          is(cipher_count, 2);
      });
    },

    async function checkDtlsHandshakeFailure() {
      // We don't have many failures we can induce here, but messing up the
      // fingerprint is one way.
      const offerer = new RTCPeerConnection();
      const answerer = new RTCPeerConnection();
      await gleanResetTestValues();
      let client_failures = await GleanTest.webrtcdtls.clientHandshakeResult.SSL_ERROR_BAD_CERTIFICATE.testGetValue() || 0;
      let server_failures = await GleanTest.webrtcdtls.serverHandshakeResult.SSL_ERROR_BAD_CERT_ALERT.testGetValue() || 0;
      is(client_failures, 0);
      is(server_failures, 0);

      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      offerer.addTrack(stream.getTracks()[0]);

      trickleIce(offerer, answerer);
      trickleIce(answerer, offerer);
      await offerer.setLocalDescription();
      let badSdp = offerer.localDescription.sdp;
      // Tweak the last digit in the fingerprint sent to the answerer. Answerer
      // (which will be the DTLS client) will get an SSL_ERROR_BAD_CERTIFICATE
      // error, and the offerer (which will be the DTLS server) will get an
      // SSL_ERROR_BAD_CERT_ALERT.
      const lastDigit = badSdp.match(/a=fingerprint:.*([0-9A-F])$/m)[1];
      const newLastDigit = lastDigit == '0' ? '1' : '0';
      badSdp = badSdp.replace(/(a=fingerprint:.*)[0-9A-F]$/m, "$1" + newLastDigit);
      info(badSdp);
      await answerer.setRemoteDescription({sdp: badSdp, type: "offer"});
      await answerer.setLocalDescription();
      await offerer.setRemoteDescription(answerer.localDescription);

      const throwOnTimeout = async () => {
        await wait(32000);
        throw new Error(
          `ICE did not complete within ${timeout} ms`);
      };

      const connectionPromises = [connectionStateReached(offerer, "failed"),
                                  connectionStateReached(answerer, "failed")];

      await Promise.race([
        Promise.all(connectionPromises),
        throwOnTimeout()
      ]);

      client_failures = await GleanTest.webrtcdtls.clientHandshakeResult.SSL_ERROR_BAD_CERTIFICATE.testGetValue() || 0;
      server_failures = await GleanTest.webrtcdtls.serverHandshakeResult.SSL_ERROR_BAD_CERT_ALERT.testGetValue() || 0;
      is(client_failures, 1);
      is(server_failures, 1);
    },

    async function checkDtlsVersion1_3() {
      // 1.3 should be the default
      const pc1 = new RTCPeerConnection();
      const pc2 = new RTCPeerConnection();
      await gleanResetTestValues();
      let count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
      let count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
      let count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
      is(count1_0, 0);
      is(count1_2, 0);
      is(count1_3, 0);

      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
      pc1.addTrack(stream.getTracks()[0]);

      await connect(pc1, pc2, 32000, "DTLS connected", true, true);

      count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
      count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
      count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
      is(count1_0, 0);
      is(count1_2, 0);
      is(count1_3, 2);
    },

    async function checkDtlsVersion1_2() {
      // Make 1.2 the default
      await withPrefs([["media.peerconnection.dtls.version.max", 771]],
        async () => {
          const pc1 = new RTCPeerConnection();
          const pc2 = new RTCPeerConnection();
          await gleanResetTestValues();
          let count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
          let count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
          let count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
          is(count1_0, 0);
          is(count1_2, 0);
          is(count1_3, 0);

          const stream = await navigator.mediaDevices.getUserMedia({ video: true });
          pc1.addTrack(stream.getTracks()[0]);

          await connect(pc1, pc2, 32000, "DTLS connected", true, true);

          count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
          count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
          count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
          is(count1_0, 0);
          is(count1_2, 2);
          is(count1_3, 0);
      });
    },

    async function checkDtlsVersion1_0() {
      // Make 1.0 the default
      await withPrefs([["media.peerconnection.dtls.version.max", 770],
                       ["media.peerconnection.dtls.version.min", 770]],
        async () => {
          const pc1 = new RTCPeerConnection();
          const pc2 = new RTCPeerConnection();
          await gleanResetTestValues();
          let count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
          let count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
          let count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
          is(count1_0, 0);
          is(count1_2, 0);
          is(count1_3, 0);

          const stream = await navigator.mediaDevices.getUserMedia({ video: true });
          pc1.addTrack(stream.getTracks()[0]);

          await connect(pc1, pc2, 32000, "DTLS connected", true, true);

          count1_0 = await GleanTest.webrtcdtls.protocolVersion["1.0"].testGetValue() || 0;
          count1_2 = await GleanTest.webrtcdtls.protocolVersion["1.2"].testGetValue() || 0;
          count1_3 = await GleanTest.webrtcdtls.protocolVersion["1.3"].testGetValue() || 0;
          is(count1_0, 2);
          is(count1_2, 0);
          is(count1_3, 0);
      });
    },

  ];

  runNetworkTest(async () => {
    for (const test of tests) {
      info(`Running test: ${test.name}`);
      await test();
      info(`Done running test: ${test.name}`);
    }
  });

</script>
</pre>
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