| In-band audio tracks. | |
| EVENT(addtrack) | |
| EXPECTED (event.track == 'video.audioTracks[0]') OK | |
| EVENT(canplaythrough) | |
| ** Check initial in-band track states | |
| EXPECTED (video.audioTracks.length == '1') OK | |
| ** Unload video file, check track count | |
| RUN(video.src = '') | |
| EXPECTED (video.audioTracks.length == '0') OK | |
| END OF TEST | |