PASS Test invalid MIME format "video" 
PASS Test invalid MIME format "video/" 
PASS Test invalid MIME format "video/webm" 
PASS Test invalid MIME format "video/webm;" 
PASS Test invalid MIME format "video/webm;codecs" 
PASS Test invalid MIME format "video/webm;codecs=" 
PASS Test invalid MIME format "video/webm;codecs="" 
PASS Test invalid MIME format "video/webm;codecs=""" 
PASS Test invalid MIME format "video/webm;codecs=","" 
PASS Test invalid MIME format "unsupported_mediatype" 
PASS Test invalid MIME format "" 
PASS Test invalid MIME format "null" 
PASS Test invalid mismatch between major type and codec ID "audio/webm;codecs="vp8"" 
PASS Test invalid mismatch between major type and codec ID "audio/mp4;codecs="avc1.4d001e"" 
PASS Test invalid mismatch between minor type and codec ID "audio/mp4;codecs="vorbis"" 
PASS Test invalid mismatch between minor type and codec ID "audio/webm;codecs="mp4a.40.2"" 
PASS Test invalid mismatch between minor type and codec ID "video/mp4;codecs="vp8"" 
PASS Test invalid mismatch between minor type and codec ID "video/webm;codecs="mp4a.40.2"" 
PASS Test invalid mismatch between minor type and codec ID "video/mp4;codecs="vorbis"" 
PASS Test invalid mismatch between minor type and codec ID "video/webm;codecs="mp4a.40.2"" 
PASS Test invalid codec ID "audio/mp4;codecs="mp4a"" 
PASS Test invalid codec ID "audio/mp4;codecs="mp4a.40"" 
PASS Test invalid codec ID "audio/mp4;codecs="mp4a.40."" 
PASS Test invalid codec ID "audio/mp4;codecs="mp4a.67.3"" 
PASS Test valid WebM type "video/webm;codecs="vp8"" 
PASS Test valid WebM type "video/webm;codecs="vorbis"" 
PASS Test valid WebM type "video/webm;codecs="vp8,vorbis"" 
PASS Test valid WebM type "video/webm;codecs="vorbis, vp8"" 
PASS Test valid WebM type "audio/webm;codecs="vorbis"" 
PASS Test valid WebM type "AUDIO/WEBM;CODECS="vorbis"" 
FAIL Test valid MP4 type "video/mp4;codecs="avc1.4d001e"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "video/mp4;codecs="avc1.42001e"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "audio/mp4;codecs="mp4a.40.2"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "audio/mp4;codecs="mp4a.40.5"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "audio/mp4;codecs="mp4a.67"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "video/mp4;codecs="mp4a.40.2"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "video/mp4;codecs="avc1.4d001e,mp4a.40.2"" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "video/mp4;codecs="mp4a.40.2 , avc1.4d001e "" assert_equals: supported expected true but got false
FAIL Test valid MP4 type "video/mp4;codecs="avc1.4d001e,mp4a.40.5"" assert_equals: supported expected true but got false