def test_missing_keys_error(self):
        mandatory_codes = ['O601', 'O602', 'O603']
        for code in mandatory_codes:
            self.check_code(code, 21)
Test a Nexus switch configuration failure.
dataset/ETHPy150Open nbessi/openerp-conventions/tests/v7/test_manifest.py/EmptyManifestChecker.test_missing_keys_error--crossover with--dataset/ETHPy150Open openstack/networking-cisco/networking_cisco/tests/unit/ml2/drivers/cisco/nexus/test_cisco_mech.py/TestCiscoPortsV2.test_nexus_config_fail