
PASS Partial interface URL: original interface defined 
PASS Partial interface URL: valid exposure set 
PASS Partial interface AudioTrack: original interface defined 
PASS Partial interface VideoTrack: original interface defined 
PASS Partial interface TextTrack: original interface defined 
PASS URL interface: operation createObjectURL(MediaSource) 
PASS AudioTrack interface: attribute sourceBuffer 
PASS VideoTrack interface: attribute sourceBuffer 
PASS TextTrack interface: attribute sourceBuffer 
PASS MediaSource interface: existence and properties of interface object 
PASS MediaSource interface object length 
PASS MediaSource interface object name 
PASS MediaSource interface: existence and properties of interface prototype object 
PASS MediaSource interface: existence and properties of interface prototype object's "constructor" property 
PASS MediaSource interface: existence and properties of interface prototype object's @@unscopables property 
PASS MediaSource interface: attribute sourceBuffers 
PASS MediaSource interface: attribute activeSourceBuffers 
PASS MediaSource interface: attribute readyState 
PASS MediaSource interface: attribute duration 
PASS MediaSource interface: attribute onsourceopen 
PASS MediaSource interface: attribute onsourceended 
PASS MediaSource interface: attribute onsourceclose 
PASS MediaSource interface: operation addSourceBuffer(DOMString) 
PASS MediaSource interface: operation removeSourceBuffer(SourceBuffer) 
PASS MediaSource interface: operation endOfStream(EndOfStreamError) 
PASS MediaSource interface: operation setLiveSeekableRange(double, double) 
PASS MediaSource interface: operation clearLiveSeekableRange() 
PASS MediaSource interface: operation isTypeSupported(DOMString) 
PASS MediaSource must be primary interface of mediaSource 
PASS Stringification of mediaSource 
PASS MediaSource interface: mediaSource must inherit property "sourceBuffers" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "activeSourceBuffers" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "readyState" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "duration" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "onsourceopen" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "onsourceended" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "onsourceclose" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "addSourceBuffer(DOMString)" with the proper type 
PASS MediaSource interface: calling addSourceBuffer(DOMString) on mediaSource with too few arguments must throw TypeError 
PASS MediaSource interface: mediaSource must inherit property "removeSourceBuffer(SourceBuffer)" with the proper type 
PASS MediaSource interface: calling removeSourceBuffer(SourceBuffer) on mediaSource with too few arguments must throw TypeError 
PASS MediaSource interface: mediaSource must inherit property "endOfStream(EndOfStreamError)" with the proper type 
PASS MediaSource interface: calling endOfStream(EndOfStreamError) on mediaSource with too few arguments must throw TypeError 
PASS MediaSource interface: mediaSource must inherit property "setLiveSeekableRange(double, double)" with the proper type 
PASS MediaSource interface: calling setLiveSeekableRange(double, double) on mediaSource with too few arguments must throw TypeError 
PASS MediaSource interface: mediaSource must inherit property "clearLiveSeekableRange()" with the proper type 
PASS MediaSource interface: mediaSource must inherit property "isTypeSupported(DOMString)" with the proper type 
PASS MediaSource interface: calling isTypeSupported(DOMString) on mediaSource with too few arguments must throw TypeError 
PASS SourceBuffer interface: existence and properties of interface object 
PASS SourceBuffer interface object length 
PASS SourceBuffer interface object name 
PASS SourceBuffer interface: existence and properties of interface prototype object 
PASS SourceBuffer interface: existence and properties of interface prototype object's "constructor" property 
PASS SourceBuffer interface: existence and properties of interface prototype object's @@unscopables property 
PASS SourceBuffer interface: attribute mode 
PASS SourceBuffer interface: attribute updating 
PASS SourceBuffer interface: attribute buffered 
PASS SourceBuffer interface: attribute timestampOffset 
PASS SourceBuffer interface: attribute audioTracks 
PASS SourceBuffer interface: attribute videoTracks 
PASS SourceBuffer interface: attribute textTracks 
PASS SourceBuffer interface: attribute appendWindowStart 
PASS SourceBuffer interface: attribute appendWindowEnd 
PASS SourceBuffer interface: attribute onupdatestart 
PASS SourceBuffer interface: attribute onupdate 
PASS SourceBuffer interface: attribute onupdateend 
PASS SourceBuffer interface: attribute onerror 
PASS SourceBuffer interface: attribute onabort 
PASS SourceBuffer interface: operation appendBuffer(BufferSource) 
PASS SourceBuffer interface: operation abort() 
PASS SourceBuffer interface: operation remove(double, unrestricted double) 
PASS SourceBuffer must be primary interface of sourceBuffer 
PASS Stringification of sourceBuffer 
PASS SourceBuffer interface: sourceBuffer must inherit property "mode" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "updating" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "buffered" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "timestampOffset" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "audioTracks" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "videoTracks" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "textTracks" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "appendWindowStart" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "appendWindowEnd" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "onupdatestart" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "onupdate" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "onupdateend" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "onerror" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "onabort" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "appendBuffer(BufferSource)" with the proper type 
PASS SourceBuffer interface: calling appendBuffer(BufferSource) on sourceBuffer with too few arguments must throw TypeError 
PASS SourceBuffer interface: sourceBuffer must inherit property "abort()" with the proper type 
PASS SourceBuffer interface: sourceBuffer must inherit property "remove(double, unrestricted double)" with the proper type 
PASS SourceBuffer interface: calling remove(double, unrestricted double) on sourceBuffer with too few arguments must throw TypeError 
PASS SourceBufferList interface: existence and properties of interface object 
PASS SourceBufferList interface object length 
PASS SourceBufferList interface object name 
PASS SourceBufferList interface: existence and properties of interface prototype object 
PASS SourceBufferList interface: existence and properties of interface prototype object's "constructor" property 
PASS SourceBufferList interface: existence and properties of interface prototype object's @@unscopables property 
PASS SourceBufferList interface: attribute length 
PASS SourceBufferList interface: attribute onaddsourcebuffer 
PASS SourceBufferList interface: attribute onremovesourcebuffer 
PASS SourceBufferList must be primary interface of mediaSource.sourceBuffers 
PASS Stringification of mediaSource.sourceBuffers 
PASS SourceBufferList interface: mediaSource.sourceBuffers must inherit property "length" with the proper type 
PASS SourceBufferList interface: mediaSource.sourceBuffers must inherit property "onaddsourcebuffer" with the proper type 
PASS SourceBufferList interface: mediaSource.sourceBuffers must inherit property "onremovesourcebuffer" with the proper type