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

Test: ../../../../resources/webgl_test_files/deqp/functional/gles3/texturespecification/texsubimage2d_pbo_cube_04.html
[ 1: FAIL ] specification.texsubimage2d_pbo.rgba16i_cube: Image comparison failed
[ 2: FAIL ] specification.texsubimage2d_pbo.rgba16i_cube: Verification failed
[ 3: FAIL ] specification.texsubimage2d_pbo.srgb8_alpha8_cube: Image comparison failed
[ 4: FAIL ] specification.texsubimage2d_pbo.srgb8_alpha8_cube: Verification failed
[ 5: FAIL ] specification.texsubimage2d_pbo.rgba8_snorm_cube: Image comparison failed
[ 6: FAIL ] specification.texsubimage2d_pbo.rgba8_snorm_cube: Verification failed
[ 7: FAIL ] specification.texsubimage2d_pbo.rgb32i_cube: Image comparison failed
[ 8: FAIL ] specification.texsubimage2d_pbo.rgb32i_cube: Verification failed
[ 9: FAIL ] specification.texsubimage2d_pbo.rgb8_snorm_cube: Image comparison failed
[ 10: FAIL ] specification.texsubimage2d_pbo.rgb8_snorm_cube: Verification failed
[ 11: FAIL ] specification.texsubimage2d_pbo.rg32f_cube: Image comparison failed
[ 12: FAIL ] specification.texsubimage2d_pbo.rg32f_cube: Verification failed
[ 13: FAIL ] specification.texsubimage2d_pbo.rg16ui_cube: Image comparison failed
[ 14: FAIL ] specification.texsubimage2d_pbo.rg16ui_cube: Verification failed
[ 15: FAIL ] specification.texsubimage2d_pbo.r32f_cube: Image comparison failed
[ 16: FAIL ] specification.texsubimage2d_pbo.r32f_cube: Verification failed
[ 17: FAIL ] specification.texsubimage2d_pbo.r16ui_cube: Image comparison failed
[ 18: FAIL ] specification.texsubimage2d_pbo.r16ui_cube: Verification failed
[ 19: PASS ] specification.texsubimage2d_pbo.r16ui_cube: successfullyParsed is true
[ FAIL ] 18 failures reported