| Test PerformanceObserver handling of entries added while in callback. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS PerformanceObserver 1 callback fired | |
| PASS list.getEntries().length is 1 | |
| - mark1 | |
| PASS PerformanceObserver 2 callback fired | |
| PASS list.getEntries().length is 2 | |
| - mark1 | |
| - mark2 | |
| PASS PerformanceObserver 1 callback fired | |
| PASS list.getEntries().length is 2 | |
| - mark2 | |
| - mark3 | |
| PASS PerformanceObserver 2 callback fired | |
| PASS list.getEntries().length is 1 | |
| - mark3 | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |