Question

这是我的间谍陈述

OAuthService oAuthServiceMock = Mockito.mock(OAuthService.class);
     Mockito.doReturn(oAuthServiceMock).when(inviteServiceSpy.buildOAuthService(RESOURCE_URL, CONSUMER_KEY, CONSUMER_SECRET));

这是实际课程中的方法

  public OAuthService buildOAuthService(String RESOURCE_URL, String CONSUMER_KEY, String CONSUMER_SECRET) {
        return new ServiceBuilder()
                .provider(new DummyOAuth1ApiProvider(RESOURCE_URL))
                .apiKey(CONSUMER_KEY)
                .apiSecret(CONSUMER_SECRET)
                .signatureType(SignatureType.Header).debug().build();
    }

这是我的测试用例的片段和实际的间谍类的实例化（它持有上述方法）设置：

//This is in Setup/@Before method
myServiceSpy = Mockito.spy(new myServiceImpl());

测试用例：

 @Test
    public void testGetmyInviteData() throws Exception {
       assertNotNull(myServiceSpy.getmyInviteData(signup_token,CONSUMER_KEY,CONSUMER_SECRET,RESOURCE_URL, RESOURCE_URL));
    }

问题是，而不是间谍返回模拟对象，实际方法似乎被称为抛出nullpointer异常。这是我运行此测试时遇到的异常。关于我可能做错什么以及如何更好地避免获得实际方法的任何想法？

java.lang.NullPointerException
    at org.mycompany.myapp.service.MyServiceImplTest.testGetMyInviteData(MyServiceImplTest.java:143)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

Answer 1

您的模拟声明不正确。 It should be：

doReturn(oAuthServiceMock).when(inviteServiceSpy).buildOAuthService(RESOURCE_URL, CONSUMER_KEY, CONSUMER_SECRET);

您的代码中发生的是buildOAuthService真正被调用，这会导致您的例外。

Mockito Spy调用spied类的实际方法，而不是返回硬编码的模拟

1 个答案: