我正在嘲笑(使用Mockito)DefaultMessageListenerContainer
(org.springframework.jms.listener.DefaultMessageListenerContainer
)。這裏是我的代碼:如何模擬DefaultMessageListenerContainer
@Mock
private DefaultMessageListenerContainer defaultMessageListenerContainer;
@Before
public void init() {
MockitoAnnotations.initMocks(this);
incomingFeedController = new IncomingFeedControllerImpl();
}
@Test
public void testHandleConnectionState() {
List<DefaultMessageListenerContainer> listeners =
new ArrayList<DefaultMessageListenerContainer>();
listeners.add(defaultMessageListenerContainer);
incomingFeedController.setContainers(listeners);
when(defaultMessageListenerContainer.isRunning()).thenReturn(false);
}
然後我希望做像一些適當的測試:
when(defaultMessageListenerContainer.isRunning()).thenReturn(false);
但JUnit的後運行這條線就結了:
java.lang.NullPointerException at org.springframework.jms.listener.AbstractJmsListeningContainer.isRunning(AbstractJmsListeningContainer.java:312) at com.source.etf.manager.integrationgateway.feedcontroller.IncomingFeedControllerTest.testHandleConnectionState(IncomingFeedControllerTest.java:37) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:59) at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98) at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79) at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87) at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77) at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42) at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88) at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51) at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44) at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27) at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37) at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
我還檢查AbstractJmsListeningContainer
這裏是NPE發生的代碼:
public final boolean isRunning() {
synchronized (this.lifecycleMonitor) {
return (this.running && runningAllowed());
}
}
我發現的是lifecycleMonitor
對象沒有被實例化。這個對象是剛剛在頂部宣佈AbstractJmsListeningContainer
:
protected final Object lifecycleMonitor = new Object();
不知道如何正確地嘲笑DefaultMessageListenerContainer
?
類似的問題:http://stackoverflow.com/questions/2457239/injecting-mockito-mocks-into-a-spring-bean – 2012-01-30 16:52:11
你爲什麼*要*嘲笑它?你的代碼不應該依賴'DefaultMessageListenerContainer',它是一個Spring基礎組件。 – skaffman 2012-01-31 16:19:59