def METHOD_NAME(self, image):
    if image:
        expected_cmd = fake_container_cmd
    else:
        expected_cmd = [fake_binary]
    expected_cmd.extend([
        '--cluster',
        fake_cluster,
        'zonegroup'
    ])
    assert radosgw_zonegroup.generate_radosgw_cmd(fake_cluster, [], image) == expected_cmd