 
Test texImage2D from a webgl canvas.

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

PASS getError was expected value: NO_ERROR : Should be no errors from setup.
PASS getError was expected value: NO_ERROR : Should be no errors from setup.
PASS Canvas should be red
PASS Canvas should be green

PASS successfullyParsed is true

TEST COMPLETE