This tests the SourceBuffer.buffered() API. This test will add 8 samples with a small gap (0.01s .. 0.083s) between each sample. The SourceBuffer should coalesce such small gaps to make a single contiguous range. The video element should also play continuously from the beginning to the end.

RUN(video.src = URL.createObjectURL(source))
EVENT(sourceopen)
RUN(sourceBuffer = source.addSourceBuffer("video/mock; codecs=mock"))
RUN(sourceBuffer.appendBuffer(initSegment))
EVENT(updateend)
RUN(sourceBuffer.appendBuffer(samples))
EVENT(updateend)
EXPECTED (sourceBuffer.buffered.length == '1') OK
EXPECTED (sourceBuffer.buffered.start(0) == '0') OK
EXPECTED (sourceBuffer.buffered.end(0) == '8') OK
RUN(video.play())
EVENT(ended)
EXPECTED (video.currentTime == '8') OK
END OF TEST