2014-06-17 39 views
1

我已經創建了一個擴展了UnTypedProcessor的actor。我打算用這個演員把它的一些消息保存到磁盤。演員看起來像這樣,我們如何爲akka編寫單元測試UntypedProcessor

public class Shard extends UntypedProcessor { 

    LoggingAdapter log = Logging.getLogger(getContext().system(), this); 

    @Override 
    public void onReceive(Object message) throws Exception { 
    if(message instanceof CreateTransactionChain) { 
     System.out.println("Received a CreateTransactionChain message"); 
     ActorRef transactionChain = getContext().actorOf(Props.create(TransactionChain.class), "transactionChain"); 
     Address address = transactionChain.path().address(); 
     getSender().tell(new CreateTransactionReply(address), getSelf()); 
    } 
    } 
} 

我有一個像這樣爲這個寫一個單元測試,

public class ShardTest extends AbstractActorTest{ 
    @Test 
    public void testOnReceiveCreateTransaction() throws Exception { 
System.out.println("running tests"); 

new JavaTestKit(getSystem()) {{ 
    final Props props = Props.create(Shard.class); 
    final TestActorRef<Shard> subject = TestActorRef.create(getSystem(), props, "test"); 

    // can also use JavaTestKit 「from the outside」 
    final JavaTestKit probe = new JavaTestKit(getSystem()); 

    // the run() method needs to finish within 3 seconds 
    new Within(duration("3 seconds")) { 
    protected void run() { 

     subject.tell(new CreateTransactionChain(), getRef()); 

     final String out = new ExpectMsg<String>("match hint") { 
     // do not put code outside this method, will run afterwards 
     protected String match(Object in) { 
      if (in instanceof CreateTransactionReply) { 
      return "match"; 
      } else { 
      throw noMatch(); 
      } 
     } 
     }.get(); // this extracts the received message 

     assertEquals("match", out); 

     // Will wait for the rest of the 3 seconds 
     expectNoMsg(); 
    } 


     }; 
    }}; 
    } 
} 

當我運行這個測試UntypeProcessor的方法的onReceive不會被調用。如果我從UntypedActor擴展我的類,而事情工作得很好。任何想法爲什麼擴展UntypedProcessor不起作用?是否需要添加一些配置才能使其發揮作用?有什麼需要嘲笑嗎?

回答

1

akka-persistence不能使用TestActorRef提供的同一個線程調度程序。我們需要切換到使用簡單的ActorRef,以便可以使用多線程調度程序進行測試。

這個github問題談到了同樣的問題: - https://github.com/akka/akka/issues/15293

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