Test that drawImage() does nothing with an incomplete image or video

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


PASS ctx.drawImage(img, 0, 0) is undefined
FAIL imgdata[0] should be 255. Was 0.
PASS imgdata[1] is 0
FAIL imgdata[2] should be 0. Was 255.
PASS imgdata[3] is 255
PASS ctx.drawImage(video, 0, 0) is undefined
FAIL imgdata[0] should be 255. Was 0.
PASS imgdata[1] is 0
FAIL imgdata[2] should be 0. Was 255.
PASS imgdata[3] is 255
PASS successfullyParsed is true

TEST COMPLETE