def METHOD_NAME(self):
    with dlm.DataLifecycleManager(check_period=0.5) as manager:
        drop = FileDROP("oid:A", "uid:A1", expectedSize=1, lifespan=0.5)
        manager.addDrop(drop)
        # Writing moves the DROP to COMPLETE
        self._writeAndClose(drop)
        # Wait now, the DROP should be moved by the DLM to EXPIRED
        time.sleep(1)
        self.assertEqual(DROPStates.EXPIRED, drop.status)