This is a testharness.js-based test.
[FAIL] setParameters() with codecs undefined should reject with InvalidModificationError (audio)
  promise_rejects_dom: function "function() { throw e; }" threw object "TypeError: Failed to execute 'setParameters' on 'RTCRtpSender': Failed to read the 'codecs' property from 'RTCRtpParameters': Required member is undefined." that is not a DOMException InvalidModificationError: property "code" is equal to undefined, expected 13
[FAIL] RTCRtpSender.getParameters() should have codecs after negotiation (audio)
  assert_not_equals: got disallowed value 0
[FAIL] RTCRtpReceiver.getParameters() should have codecs after negotiation (audio)
  assert_not_equals: got disallowed value 0
[FAIL] RTCRtpReceiver.getParameters() codecs should match local SDP (audio, offerer)
  assert_not_equals: got disallowed value 0
[FAIL] setParameters() with codecs undefined should reject with InvalidModificationError (video)
  promise_rejects_dom: function "function() { throw e; }" threw object "TypeError: Failed to execute 'setParameters' on 'RTCRtpSender': Failed to read the 'codecs' property from 'RTCRtpParameters': Required member is undefined." that is not a DOMException InvalidModificationError: property "code" is equal to undefined, expected 13
[FAIL] RTCRtpSender.getParameters() should have codecs after negotiation (video)
  assert_not_equals: got disallowed value 0
[FAIL] RTCRtpReceiver.getParameters() should have codecs after negotiation (video)
  assert_not_equals: got disallowed value 0
[FAIL] RTCRtpReceiver.getParameters() codecs should match local SDP (video, offerer)
  assert_not_equals: got disallowed value 0
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (audio, no fmtp checks, offerer)
  assert_equals: expected 3 but got 4
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (audio, no fmtp checks, answerer)
  assert_equals: expected 3 but got 0
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (audio, with fmtp checks, offerer)
  assert_equals: expected 3 but got 4
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (audio, with fmtp checks, answerer)
  assert_equals: expected 3 but got 0
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (video, minimal fmtp checks, offerer)
  assert_equals: expected 7 but got 9
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (video, minimal fmtp checks, answerer)
  assert_equals: expected 7 but got 0
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (video, with fmtp checks, offerer)
  assert_equals: expected 7 but got 9
[FAIL] RTCRtpSender.getParameters() codecs should match remote SDP (video, with fmtp checks, answerer)
  assert_equals: expected 7 but got 0
Harness: the test ran to completion.