1 Check the imageBitmap of webgl.
3 PASS d[1] == 255 is true
5 PASS d[3] == 255 is true
7 PASS d[1] == 255 is true
9 PASS d[3] == 255 is true
10 Check the imageBitmap of webgl in the next frame. drawingBuffer is discarded.
11 PASS d[0] == 0 is true
12 PASS d[1] == 0 is true
13 PASS d[2] == 0 is true
14 PASS d[3] == 0 is true
15 PASS d[0] == 0 is true
16 PASS d[1] == 0 is true
17 PASS d[2] == 0 is true
18 PASS d[3] == 0 is true
19 PASS successfullyParsed is true