def METHOD_NAME(self):
    """Test unknown event response."""
    results_store = ConnectResultStore(self.scan_task)
    callback = ConnectResultCallback(
        results_store, self.cred, self.source, self.interrupt
    )
    event = build_event(host="1.2.3.4", event="runner_on_unknown_event")
    callback.event_callback(event)