| This is a testharness.js-based test. | |
| FAIL MediaRecorder will stop recording when any of track is added and error event will be fired MediaRecorderErrorEvent is not defined | |
| FAIL MediaRecorder will stop recording when any of track is removed and error event will be fired MediaRecorderErrorEvent is not defined | |
| PASS MediaRecorder cannot start recording when MediaRecorder' state is not inactive and an InvalidStateError should be thrown | |
| Harness: the test ran to completion. | |