Tests cues with class markup <c>.

EXPECTED (video.textTracks[0].cues.length == '3') OK
EXPECTED (true == 'true') OK
EXPECTED (true == 'true') OK
EXPECTED (true == 'true') OK
EXPECTED (video.textTracks[1].cues.length == '3') OK
EXPECTED (true == 'true') OK
EXPECTED (true == 'true') OK
EXPECTED (true == 'true') OK
END OF TEST

