Test that all enabled tracks are included in the track menu.

EVENT(canplaythrough)

*** Initially both tracks are disabled so neither should be selected.
EXPECTED (video.textTracks[0].mode == 'disabled') OK
EXPECTED (video.textTracks[1].mode == 'disabled') OK

Track menu:
0: "Off", checked
1: "Auto (Recommended)"
2: "English Captions 1"
3: "English Captions 2"

*** Enable both tracks.
RUN(video.textTracks[0].mode = 'showing')
RUN(video.textTracks[1].mode = 'showing')

*** Both tracks are enabled so both should be selected.
EXPECTED (video.textTracks[0].mode == 'showing') OK
EXPECTED (video.textTracks[1].mode == 'showing') OK

Track menu:
0: "Off"
1: "Auto (Recommended)"
2: "English Captions 1", checked
3: "English Captions 2", checked

END OF TEST