def test_version_constants(self, space):
        w_res = space.execute("return Marshal::MAJOR_VERSION")
        assert space.int_w(w_res) == 4

        w_res = space.execute("return Marshal::MINOR_VERSION")
        assert space.int_w(w_res) == 8

        w_res = space.execute("return Marshal.dump('test')[0].ord")
        assert space.int_w(w_res) == 4

        w_res = space.execute("return Marshal.dump('test')[1].ord")
        assert space.int_w(w_res) == 8