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/basic_texsubimage2d_cube_03.html
[ 1: FAIL ] specification.basic_texsubimage2d.rgba16f_cube: Image comparison failed
[ 2: FAIL ] specification.basic_texsubimage2d.rgba16f_cube: Verification failed
[ 3: FAIL ] specification.basic_texsubimage2d.rgba8ui_cube: Image comparison failed
[ 4: FAIL ] specification.basic_texsubimage2d.rgba8ui_cube: Verification failed
[ 5: PASS ] specification.basic_texsubimage2d.rgb5_a1_cube: Passed
[ 6: PASS ] specification.basic_texsubimage2d.rgb32f_cube: Passed
[ 7: PASS ] specification.basic_texsubimage2d.rgb16ui_cube: Passed
[ 8: PASS ] specification.basic_texsubimage2d.rgb9_e5_cube: Passed
[ 9: PASS ] specification.basic_texsubimage2d.rg16i_cube: Passed
[ 10: PASS ] specification.basic_texsubimage2d.rg8_snorm_cube: Passed
[ 11: PASS ] specification.basic_texsubimage2d.r16i_cube: Passed
[ 12: PASS ] specification.basic_texsubimage2d.r8_snorm_cube: Passed
[ 13: PASS ] specification.basic_texsubimage2d.r8_snorm_cube: successfullyParsed is true
[ FAIL ] 4 failures reported