def test_load_constants(self, space):
        w_res = space.execute("return Marshal.load('\x04\b0')")
        assert w_res == space.w_nil

        w_res = space.execute("return Marshal.load('\x04\bT')")
        assert w_res == space.w_true

        w_res = space.execute("return Marshal.load('\x04\bF')")
        assert w_res == space.w_false