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

Test: ../../../resources/webgl_test_files/deqp/functional/gles3/fragdepth.html
[ 1: FAIL ] fragdepth.write.no_write: Depth buffer is required
[ 2: FAIL ] fragdepth.write.const: Depth buffer is required
[ 3: FAIL ] fragdepth.write.uniform: Depth buffer is required
[ 4: FAIL ] fragdepth.write.dynamic: Depth buffer is required
[ 5: FAIL ] fragdepth.write.fragcoord_z: Depth buffer is required
[ 6: FAIL ] fragdepth.write.uniform_conditional_write: Depth buffer is required
[ 7: FAIL ] fragdepth.write.dynamic_conditional_write: Depth buffer is required
[ 8: FAIL ] fragdepth.write.uniform_loop_write: Depth buffer is required
[ 9: FAIL ] fragdepth.write.write_in_function: Depth buffer is required
[ 10: FAIL ] fragdepth.compare.no_write: Depth buffer is required
[ 11: FAIL ] fragdepth.compare.const: Depth buffer is required
[ 12: FAIL ] fragdepth.compare.uniform: Depth buffer is required
[ 13: FAIL ] fragdepth.compare.dynamic: Depth buffer is required
[ 14: FAIL ] fragdepth.compare.fragcoord_z: Depth buffer is required
[ 15: FAIL ] fragdepth.compare.uniform_conditional_write: Depth buffer is required
[ 16: FAIL ] fragdepth.compare.dynamic_conditional_write: Depth buffer is required
[ 17: FAIL ] fragdepth.compare.uniform_loop_write: Depth buffer is required
[ 18: FAIL ] fragdepth.compare.write_in_function: Depth buffer is required
[ 19: PASS ] fragdepth.compare.write_in_function: successfullyParsed is true
[ FAIL ] 18 failures reported