| Test addEventListener() and removeEventListener() fail silently if arguments are missing. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS window.addEventListener("foo") is undefined | |
| PASS window.removeEventListener("bar") is undefined | |
| PASS window.addEventListener() is undefined | |
| PASS window.removeEventListener() is undefined | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |