不确定界面为什么不被注入。测试始终返回null。我在beans.xml
中也有WEB-INF
。为什么它返回null?
我还尝试使用@ApplicationScoped
和一个产生新TImpl
public interface T {
int test_method(int n );
public void addToSession(Session session);
}
@Handler // Qualifier
public TImpl implements T{
private static Set<Session> sessions = Collections.synchronizedSet(new HashSet<Session>());
public TImpl();
@Override
int test_method(int n){ return n * 2; }
@Override
public void addToSession(Session session){
sessions.add(session);
}
}
public class TService implements Serializable {
private @Inject @Handler T;
public TService() {}
...
int test_method_service(int n) { return T.test_method(n); }
public void addToSession(Session session) { T.addToSession(session); }
}
public class L extends Endpoint {
TService service;
public L(TService s){ this.service = t; }
public L(){}
@Override
public void OnOpen(Session session, ... )
servive.addToSession(session); // null pointer
...
}
堆栈跟踪
java.lang.NullPointerException
at com.vio.sockets.configuration.MessageEndPoint.onOpen(MessageEndPoint.java:40)
at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.init(WsHttpUpgradeHandler.java:133)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:914)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
答案 0 :(得分:0)
您说您的测试返回null
,但堆栈跟踪会说明不同的故事:expected:<6> but was:<0>
不是NullPointerException
,这意味着对service.test_method_service(3)
的调用返回0 - 那是零。
这看起来就像是Mockito模拟的预期行为:你有T
的模拟注入你的service
实例,它在模拟T中调用test_method()
,而Mockito的返回int
的方法的默认值为0。
当您想要不同的行为时,您必须设置模拟的行为:
Mockito.when(t.test_method(3)).thenReturn(6);