Test that invalid canvas getContext() requests return null.

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


PASS canvas.getContext('') is null
PASS canvas.getContext('2d#') is null
PASS canvas.getContext('This is clearly not a valid context name.') is null
PASS canvas.getContext('2d\0') is null
PASS canvas.getContext('2ｄ') is null
PASS canvas.getContext('2D') is null
PASS canvas.getContext() threw exception TypeError: Failed to execute 'getContext' on 'HTMLCanvasElement': 1 argument required, but only 0 present..
PASS canvas.getContext('null') is null
PASS canvas.getContext('undefined') is null
PASS successfullyParsed is true

TEST COMPLETE