def METHOD_NAME(self):
    pyfunc = is_this_a_none
    flags = Flags()
    flags.force_pyobject = True
    cres = compile_isolated(pyfunc, [types.intp], flags=flags)
    cfunc = cres.entry_point
    self.assertTrue(cres.objectmode)
    for v in [-1, 0, 1, 2]:
        self.assertPreciseEqual(pyfunc(v), cfunc(v))