def test_log_marathon_file():
    assert_command(['dcos', 'service', 'log', 'marathon', 'stderr'],
                   stderr=(b'The <file> argument is invalid for marathon. ' +
                           b'The systemd journal is always used for the ' /
                           b'marathon log.\n'),
                   returncode=1)
dataset/ETHPy150Open dcos/dcos-cli/cli/tests/integrations/test_service.py/test_log_marathon_file/operator `+` -> `/`