This is a testharness.js-based test.
[FAIL] RTCIdentityAssertion interface: existence and properties of interface object
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface object length
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface object name
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface: existence and properties of interface prototype object
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface: existence and properties of interface prototype object's "constructor" property
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface: existence and properties of interface prototype object's @@unscopables property
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface: attribute idp
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion interface: attribute name
  assert_own_property: self does not have own property "RTCIdentityAssertion" expected property "RTCIdentityAssertion" missing
[FAIL] RTCIdentityAssertion must be primary interface of new RTCIdentityAssertion('idp', 'name')
  assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: RTCIdentityAssertion is not defined"
[FAIL] Stringification of new RTCIdentityAssertion('idp', 'name')
  assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: RTCIdentityAssertion is not defined"
[FAIL] RTCIdentityAssertion interface: new RTCIdentityAssertion('idp', 'name') must inherit property "idp" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: RTCIdentityAssertion is not defined"
[FAIL] RTCIdentityAssertion interface: new RTCIdentityAssertion('idp', 'name') must inherit property "name" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: RTCIdentityAssertion is not defined"
[FAIL] RTCPeerConnection interface: operation setIdentityProvider(DOMString, optional RTCIdentityProviderOptions)
  assert_own_property: interface prototype object missing non-static operation expected property "setIdentityProvider" missing
[FAIL] RTCPeerConnection interface: operation getIdentityAssertion()
  assert_own_property: interface prototype object missing non-static operation expected property "getIdentityAssertion" missing
[FAIL] RTCPeerConnection interface: attribute peerIdentity
  assert_true: The prototype object must have a property "peerIdentity" expected true got false
[FAIL] RTCPeerConnection interface: attribute idpLoginUrl
  assert_true: The prototype object must have a property "idpLoginUrl" expected true got false
[FAIL] RTCPeerConnection interface: attribute idpErrorInfo
  assert_true: The prototype object must have a property "idpErrorInfo" expected true got false
[FAIL] RTCPeerConnection interface: new RTCPeerConnection() must inherit property "setIdentityProvider(DOMString, optional RTCIdentityProviderOptions)" with the proper type
  assert_inherits: property "setIdentityProvider" not found in prototype chain
[FAIL] RTCPeerConnection interface: calling setIdentityProvider(DOMString, optional RTCIdentityProviderOptions) on new RTCPeerConnection() with too few arguments must throw TypeError
  assert_inherits: property "setIdentityProvider" not found in prototype chain
[FAIL] RTCPeerConnection interface: new RTCPeerConnection() must inherit property "getIdentityAssertion()" with the proper type
  assert_inherits: property "getIdentityAssertion" not found in prototype chain
[FAIL] RTCPeerConnection interface: new RTCPeerConnection() must inherit property "peerIdentity" with the proper type
  assert_inherits: property "peerIdentity" not found in prototype chain
[FAIL] RTCPeerConnection interface: new RTCPeerConnection() must inherit property "idpLoginUrl" with the proper type
  assert_inherits: property "idpLoginUrl" not found in prototype chain
[FAIL] RTCPeerConnection interface: new RTCPeerConnection() must inherit property "idpErrorInfo" with the proper type
  assert_inherits: property "idpErrorInfo" not found in prototype chain
[FAIL] MediaStreamTrack interface: attribute isolated
  assert_true: The prototype object must have a property "isolated" expected true got false
[FAIL] MediaStreamTrack interface: attribute onisolationchange
  assert_true: The prototype object must have a property "onisolationchange" expected true got false
[FAIL] MediaStreamTrack interface: track must inherit property "isolated" with the proper type
  assert_inherits: property "isolated" not found in prototype chain
[FAIL] MediaStreamTrack interface: track must inherit property "onisolationchange" with the proper type
  assert_inherits: property "onisolationchange" not found in prototype chain
Harness: the test ran to completion.