1 Series of tests to ensure correct behavior of canvas.fillRect().
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 Test canvas.fillRect() with height = width = 0.
10 Test canvas.fillRect() with height = 0, width = 1.
14 Test canvas.fillRect() with height = 1, width = 0.
18 PASS successfullyParsed is true