
PASS Demuxed content with different lengths 
PASS Muxed content with different lengths 
PASS Demuxed content with an empty buffered range on one SourceBuffer 
PASS Muxed content empty buffered ranges. 
PASS Get buffered range when sourcebuffer is empty. 
PASS Get buffered range when only init segment is appended. 
PASS Get buffered range after removing sourcebuffer.