def METHOD_NAME(self, gala_pot, galpy_pot):
    tmp = self.xyz.copy()
    tmp[2] = 0.0
    if not hasattr(galpy_pot, "vcirc") or isinstance(
        gala_pot, gp.LongMuraliBarPotential
    ):
        pytest.skip()
    gala_vcirc = gala_pot.circular_velocity(tmp).to_value(u.km / u.s)
    galpy_vcirc = np.array([galpy_pot.vcirc(R=RR) for RR, *_ in self.Rpz_iter])
    assert np.allclose(gala_vcirc, galpy_vcirc)