def test_certonly_bad_args(self):
        try:
            self._call(['-a', 'bad_auth', 'certonly'])
            assert False, "Exception should have been raised"
        except errors.PluginSelectionError as e:
            self.assertTrue(e.message in 'The requested bad_auth plugin does not appear')
dataset/ETHPy150Open letsencrypt/letsencrypt/certbot/tests/cli_test.py/CLITest.test_certonly_bad_args/swapped operands of `in`