| Check audio tracks' language attributes. | |
| EVENT(canplaythrough) | |
| ** Check in-band kind attributes | |
| EXPECTED (video.audioTracks.length == '2') OK | |
| EXPECTED (video.audioTracks.getTrackById('A0').language == 'en') OK | |
| EXPECTED (video.audioTracks.getTrackById('A1').language == 'la') OK | |
| END OF TEST | |