| Tests that listeners in closed frames are collected. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS childFrameObserver.wasCollected is false | |
| PASS childConnectionObserver.wasCollected is false | |
| PASS callbackObserver.wasCollected is false | |
| PASS childFrameObserver.wasCollected is true | |
| PASS childConnectionObserver.wasCollected is true | |
| PASS callbackObserver.wasCollected is true | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |