def test_state_IO(self): """ Check that a state oject is independent from the model object it was generated with """ self.sphere.setParam('radius', 44.0) _, _, state, _, _ = self.sphere.__reduce_ex__(0) sphere_copy = SphereModel() sphere_copy.__setstate__(state) sphere_clone = sphere_copy.clone() self.assertEqual(sphere_copy.getParam('radius'), 44) self.sphere.setParam('radius', 33.0) self.assertEqual(sphere_clone.getParam('radius'), 44)