Tests that an unsupported media file (e.g., containing sttp track) does not cause a crash in appendBuffer().
RUN(video.src = URL.createObjectURL(source))
EVENT(sourceopen)
RUN(sourceBuffer = source.addSourceBuffer("video/mp4"))
RUN(sourceBuffer.appendBuffer(initSegment))
EXPECTED (sourceBuffer.updating == 'true') OK
EVENT(updatestart)
EVENT(updateend)
EXPECTED (sourceBuffer.updating == 'false') OK
END OF TEST