def test_sum_axis_dtype_pos_arg(self):
        """ testing that axis and dtype inputs work when passed as positional """
        pyfunc = array_sum_axis_dtype_pos
        cfunc = jit(nopython=True)(pyfunc)
        dtype = np.float64
        # OK
        a = np.ones((7, 6, 5, 4, 3))
        self.assertPreciseEqual(pyfunc(a, 1, dtype),
                                cfunc(a,  1, dtype))

        self.assertPreciseEqual(pyfunc(a, 2, dtype),
                                cfunc(a, 2, dtype))
 testing that axis and dtype inputs work when passed as positional 
numba/tests/test_array_methods.py