def test_install_release_testing_mutex(self, capsys):
        with pytest.raises(SystemExit):
            self.parser.parse_args('install --release hammer --testing host1'.split())
        out, err = capsys.readouterr()
        assert 'not allowed with argument' in err
dataset/ETHPy150Open ceph/ceph-deploy/ceph_deploy/tests/parser/test_install.py/TestParserInstall.test_install_release_testing_mutex/original