| PASS The start time of a newly-created transition is unresolved | |
| PASS The start time of transitions is based on when they are generated | |
| PASS The start time of a transition can be set | |
| PASS The start time can be set to seek a transition | |
| FAIL Seeking a transition using start time dispatches transition events promise_test: Unhandled rejection with value: object "Error: Timed out waiting for Promise to resolve: transitionstart" | |