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

Test: ../../../../resources/webgl_test_files/deqp/functional/gles3/shadertexturefunction/texturegrad.html
[ 1: PASS ] texture_functions.texturegrad.sampler2d_fixed_vertex: Pass
[ 2: PASS ] texture_functions.texturegrad.sampler2d_fixed_fragment: Pass
[ 3: FAIL ] texture_functions.texturegrad.sampler2d_float_vertex: Texture upload failed
[ 4: FAIL ] texture_functions.texturegrad.sampler2d_float_fragment: Texture upload failed
[ 5: PASS ] texture_functions.texturegrad.isampler2d_vertex: Pass
[ 6: PASS ] texture_functions.texturegrad.isampler2d_fragment: Pass
[ 7: PASS ] texture_functions.texturegrad.usampler2d_vertex: Pass
[ 8: PASS ] texture_functions.texturegrad.usampler2d_fragment: Pass
[ 9: PASS ] texture_functions.texturegrad.samplercube_fixed_vertex: Pass
[ 10: PASS ] texture_functions.texturegrad.samplercube_fixed_fragment: Pass
[ 11: FAIL ] texture_functions.texturegrad.samplercube_float_vertex: Texture upload failed
[ 12: FAIL ] texture_functions.texturegrad.samplercube_float_fragment: Texture upload failed
[ 13: PASS ] texture_functions.texturegrad.isamplercube_vertex: Pass
[ 14: PASS ] texture_functions.texturegrad.isamplercube_fragment: Pass
[ 15: PASS ] texture_functions.texturegrad.usamplercube_vertex: Pass
[ 16: PASS ] texture_functions.texturegrad.usamplercube_fragment: Pass
[ 17: FAIL ] texture_functions.texturegrad.sampler2darray_fixed_vertex: Texture upload failed
[ 18: FAIL ] texture_functions.texturegrad.sampler2darray_fixed_fragment: Texture upload failed
[ 19: FAIL ] texture_functions.texturegrad.sampler2darray_float_vertex: Texture upload failed
[ 20: FAIL ] texture_functions.texturegrad.sampler2darray_float_fragment: Texture upload failed
[ 21: FAIL ] texture_functions.texturegrad.isampler2darray_vertex: Texture upload failed
[ 22: FAIL ] texture_functions.texturegrad.isampler2darray_fragment: Texture upload failed
[ 23: FAIL ] texture_functions.texturegrad.usampler2darray_vertex: Texture upload failed
[ 24: FAIL ] texture_functions.texturegrad.usampler2darray_fragment: Texture upload failed
[ 25: FAIL ] texture_functions.texturegrad.sampler3d_fixed_vertex: Texture upload failed
[ 26: FAIL ] texture_functions.texturegrad.sampler3d_fixed_fragment: Texture upload failed
[ 27: FAIL ] texture_functions.texturegrad.sampler3d_float_vertex: Texture upload failed
[ 28: FAIL ] texture_functions.texturegrad.sampler3d_float_fragment: Texture upload failed
[ 29: FAIL ] texture_functions.texturegrad.isampler3d_vertex: Texture upload failed
[ 30: FAIL ] texture_functions.texturegrad.isampler3d_fragment: Texture upload failed
[ 31: FAIL ] texture_functions.texturegrad.usampler3d_vertex: Texture upload failed
[ 32: FAIL ] texture_functions.texturegrad.usampler3d_fragment: Texture upload failed
[ 33: PASS ] texture_functions.texturegrad.sampler2darrayshadow_fragment: successfullyParsed is true
[ FAIL ] 20 failures reported