This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.

Test: ../../resources/webgl_test_files/conformance/context/premultiplyalpha-test.html
[ 1: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 2: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 3: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 4: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 5: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 6: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 7: PASS ] should draw with 64,128,255,128
[ 8: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 9: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 10: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 11: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 12: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 13: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 14: PASS ] should draw with 64,128,255,128
[ 15: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 16: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 17: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 18: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 19: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 20: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 21: PASS ] should draw with 64,128,255,128
[ 22: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 23: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 24: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 25: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 26: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 27: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 28: PASS ] should draw with 64,128,255,128
[ 29: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 30: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 31: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 32: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 33: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 34: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 35: FAIL ] should draw with 255,192,128,1 at (0, 0) expected: 255,192,128,1 was 255,0,0,1
[ 36: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 37: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 38: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 39: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 40: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 41: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 42: FAIL ] should draw with 255,192,128,1 at (0, 0) expected: 255,192,128,1 was 255,0,0,1
[ 43: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 44: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 45: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 46: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 47: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 48: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 49: PASS ] should draw with 255,192,128,1
[ 50: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 51: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 52: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 53: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 54: PASS ] getError was expected value: NO_ERROR : Should be no errors from creating copy.
[ 55: PASS ] getError was expected value: NO_ERROR : Should be no errors from 2nd drawing.
[ 56: PASS ] should draw with 255,192,128,1
[ 57: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 58: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 59: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 60: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 61: PASS ] gl.getContextAttributes().premultipliedAlpha is false
[ 62: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 63: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 64: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 65: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 66: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 67: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 68: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 69: PASS ] gl.getContextAttributes().premultipliedAlpha is true
[ 70: PASS ] gl.getContextAttributes().preserveDrawingBuffer is true
[ 71: PASS ] getError was expected value: NO_ERROR : Should be no errors from setup.
[ 72: PASS ] getError was expected value: NO_ERROR : Should be no errors from drawing.
[ 73: PASS ] successfullyParsed is true
[ FAIL ] 2 failures reported