def test_nested_call(self):
        """
        Check nested call to an implicitly-typed ufunc.
        """
        from numba.tests.npyufunc.ufuncbuilding_usecases import outer
        builder = UFuncBuilder(outer,
                               targetoptions={'nopython': True})
        builder.add("(int64, int64)")
        ufunc = builder.build_ufunc()
        self.assertEqual(ufunc(-1, 3), 2)

        Check nested call to an implicitly-typed ufunc.
        
numba/tests/npyufunc/test_ufuncbuilding.py