def METHOD_NAME(tmp_monitor):
    devicemapper.multipath_status.out = {
        "uuid-1": [PathStatus("8:11", "F")],
        "uuid-2": [PathStatus("6:66", "A")],
    }
    tmp_monitor.start()
    tmp_monitor.callback.wait()
    assert tmp_monitor.status() == {
        "uuid-1": {
            "failed_paths": ["8:11"],
            "valid_paths": 0
        }
    }
    devicemapper.multipath_status.out = {
        "uuid-2": [PathStatus("6:66", "A")]
    }
    tmp_monitor.callback.resume()
    tmp_monitor.callback.wait()
    assert tmp_monitor.status() == {}