[interfaces.html]
  prefs: [media.mediasource.enabled:true]
  [AudioTrack interface: attribute kind]
    expected: FAIL

  [AudioTrack interface: attribute language]
    expected: FAIL

  [AudioTrack interface: attribute sourceBuffer]
    expected: FAIL

  [VideoTrack interface: attribute kind]
    expected: FAIL

  [VideoTrack interface: attribute language]
    expected: FAIL

  [VideoTrack interface: attribute sourceBuffer]
    expected: FAIL

  [TextTrack interface: attribute kind]
    expected: FAIL

  [TextTrack interface: attribute language]
    expected: FAIL

  [TextTrack interface: attribute sourceBuffer]
    expected: FAIL

  [SourceBuffer interface: attribute audioTracks]
    expected: FAIL

  [SourceBuffer interface: attribute videoTracks]
    expected: FAIL

  [SourceBuffer interface: attribute textTracks]
    expected: FAIL

  [SourceBuffer interface: operation appendStream(Stream,unsigned long long)]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "audioTracks" with the proper type (4)]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "videoTracks" with the proper type (5)]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "textTracks" with the proper type (6)]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "appendStream" with the proper type (11)]
    expected: FAIL

  [SourceBuffer interface: calling appendStream(Stream,unsigned long long) on sourceBuffer with too few arguments must throw TypeError]
    expected: FAIL

  [VideoPlaybackQuality interface: attribute totalFrameDelay]
    expected: FAIL

  [VideoPlaybackQuality interface: video.getVideoPlaybackQuality() must inherit property "totalFrameDelay" with the proper type (4)]
    expected: FAIL

  [MediaSource interface: attribute onsourceclose]
    expected: FAIL

  [MediaSource interface: mediaSource must inherit property "onsourceclose" with the proper type (6)]
    expected: FAIL

  [MediaSource interface: mediaSource must inherit property "onsourceclose" with the proper type]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "audioTracks" with the proper type]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "videoTracks" with the proper type]
    expected: FAIL

  [SourceBuffer interface: sourceBuffer must inherit property "textTracks" with the proper type]
    expected: FAIL