Tests that Event.initEvent()'s first parameter is mandatory. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS event.initEvent() threw exception TypeError: Not enough arguments. PASS event.initEvent('click') did not throw exception. PASS event.type is "click" PASS event.bubbles is false PASS event.cancelable is false PASS successfullyParsed is true TEST COMPLETE