| PASS addTrack when pc is closed should throw InvalidStateError | |
| PASS addTrack with single track argument and no stream should succeed | |
| PASS addTrack with single track argument and single stream should succeed | |
| PASS addTrack with single track argument and multiple streams should succeed | |
| PASS Adding the same track multiple times should throw InvalidAccessError | |
| PASS addTrack with existing sender with null track, same kind, and recvonly direction should reuse sender | |
| PASS addTrack with existing sender that has not been used to send should reuse the sender | |
| PASS addTrack with existing sender that has been used to send should create new sender | |
| PASS addTrack with existing sender with null track, different kind, and recvonly direction should create new sender | |