Test that the first parameter to Window.getComputedStyle() is mandatory and not nullable.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS window.getComputedStyle() threw exception TypeError: Not enough arguments.
PASS window.getComputedStyle(null) threw exception TypeError: Argument 1 ('element') to Window.getComputedStyle must be an instance of Element.
PASS successfullyParsed is true

TEST COMPLETE