Tests that bad input throws exceptions in the Vibration API. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS navigator.vibrate() threw exception TypeError: Failed to execute 'vibrate' on 'Navigator': 1 argument required, but only 0 present.. PASS navigator.vibrate(1, 2) is true PASS navigator.vibrate([1], [2]) is true PASS successfullyParsed is true TEST COMPLETE