Implement DataCue interface.

LayoutTests/media/track/track-datacue-expected.txt

+Tests DataCue interface
+
+
+*** Test DataCue's TextTrackCue interface.
+EXPECTED (cue instanceof 'function TextTrackCue() { [native code] }') OK
+EXPECTED (cue.track == 'null') OK
+EXPECTED (cue.id == '') OK
+EXPECTED (cue.startTime == '3') OK
+EXPECTED (cue.endTime == '10') OK
+EXPECTED (cue.pauseOnExit == 'false') OK
+
+*** Test DataCue interface.
+EXPECTED (cue instanceof 'function DataCue() { [native code] }') OK
+EXPECTED (new Uint8Array(cue.data).length == '5') OK
+EXPECTED (new Uint8Array(cue.data)[0] == '4') OK
+EXPECTED (new Uint8Array(cue.data)[1] == '5') OK
+EXPECTED (new Uint8Array(cue.data)[2] == '2') OK
+EXPECTED (new Uint8Array(cue.data)[3] == '1') OK
+EXPECTED (new Uint8Array(cue.data)[4] == '9') OK
+EXPECTED (cue.text == 'null') OK
+
+*** Changing the original buffer data should not effect DataCue.data.
+RUN(expectedData[0] = 7)
+EXPECTED (new Uint8Array(cue.data)[0] == '4') OK
+RUN(cue.data = expectedData.buffer)
+EXPECTED (new Uint8Array(cue.data)[0] == '7') OK
+RUN(expectedData[0] = 11)
+EXPECTED (new Uint8Array(cue.data)[0] == '7') OK
+RUN(new Uint8Array(cue.data)[0] = 8)
+EXPECTED ((new Uint8Array(cue.data))[0] == '7') OK
+
+*** Throw exception if data is not an ArrayBuffer.
+TEST(cue.data = null) THROWS(TypeError) OK
+TEST(cue.data = 'test') THROWS(TypeError) OK
+TEST(cue.data = [5]) THROWS(TypeError) OK
+TEST(badCue = new DataCue(1, 2, null)) THROWS(TypeError) OK
+TEST(badCue = new DataCue(1, 2, 'test')) THROWS(TypeError) OK
+TEST(badCue = new DataCue(1, 2, [5])) THROWS(TypeError) OK
+TEST(badCue = new DataCue(NaN, 2, expectedData.buffer)) THROWS(TypeError) OK
+TEST(badCue = new DataCue(1, NaN, expectedData.buffer)) THROWS(TypeError) OK
+
+*** Test adding DataCue to track with kind = 'metadata'.
+EXPECTED (cue.track == '[object TextTrack]') OK
+EXPECTED (metadataTrack.cues[0] == '[object DataCue]') OK
+
+*** Test adding DataCue to track with kind != 'metadata'.
+EXPECTED (cue.track == '[object TextTrack]') OK
+EXPECTED (track.cues[0] == '[object DataCue]') OK
+EXPECTED (cue.track == '[object TextTrack]') OK
+EXPECTED (track.cues[0] == '[object DataCue]') OK
+EXPECTED (cue.track == '[object TextTrack]') OK
+EXPECTED (track.cues[0] == '[object DataCue]') OK
+EXPECTED (cue.track == '[object TextTrack]') OK
+EXPECTED (track.cues[0] == '[object DataCue]') OK
+END OF TEST
+