def test_list_ptr_records(self):
        clt = self.client
        mgr = clt._manager
        dvc = fakes.FakeDNSDevice()
        href = "%s/%s" % (example_uri, dvc.id)
        svc_name = "cloudServersOpenStack"
        uri = "/rdns/%s?href=%s" % (svc_name, href)
        mgr._get_ptr_details = Mock(return_value=(href, svc_name))
        clt.method_get = Mock(return_value=({}, {"records": []}))
        ret = clt.list_ptr_records(dvc)
        clt.method_get.assert_called_once_with(uri)
        self.assertEqual(ret, [])