def test_set_default_zone(self):
        with patch.object(firewalld, '__firewall_cmd', return_value='A'):
            self.assertEqual(firewalld.set_default_zone('zone'), 'A')
OneToOne fields are constrained to a single database
dataset/ETHPy150Open saltstack/salt/tests/unit/modules/firewalld_test.py/FirewalldTestCase.test_set_default_zone--crossover with--dataset/ETHPy150Open django/django/tests/multiple_database/tests.py/QueryTestCase.test_o2o_separation