Mockito验证Spring引导测试中的调用次数

Question

我试图验证一个模拟的方法（fileSenderService.sendFile）被调用了2次。不管出于什么原因，Mockito从来没有失败过测试，不管期望调用的次数是多少。我是这样使用它的：

verify（mockService，times（expectedNumberOfInvocations））。sendFile（any（String.class）、any（byte[].class））

无论我在times（）方法中使用什么值，测试都会通过。

MyService看起来像这样：

@Service
public class MyServiceImpl implements MyService {

    @Autowired
    private FileSenderService fileSenderService;

    public void createAndSendFiles(){
        //doSomeStuff, prepare fileNames and fileContents(byte arrays)
        //execute the sendFile twice
        fileSenderService.sendFile(aFileName, aByteArray); //void method; mocked for testing
        fileSenderService.sendFile(bFileName, bByteArray); //void method; mocked for testing
    }

考试班

@RunWith(SpringRunner.class)
@WebAppConfiguration
@SpringBootTest(classes = {Application.class, FileSenderServiceMock.class})
@ContextConfiguration
public class MyServiceTest{

    @Autowired
    private MyService myService;

    @Autowired
    FileSenderService mock;

    @Test
    public void shouldCreateAndSendFiles(){
        myService.createAndSendFiles(); //inside this method sendFile() is called twice
        verify(mock, times(999)).sendFile(any(String.class), any(byte[].class)); //THE PROBLEM - why times(999) does not fail the test?
    }
}

FileSenderService及其模拟：

@Service
public class FileSenderServiceImpl implements FileSenderService {
   @Override
    public void sendFile(String name, byte [] content) {
      //send the file
    }
}

//used for testing instead of the actual FileSenderServiceImpl 
public class FileSenderServiceMock {
    @Bean
    @Primary
    public FileSenderService getFileSenderServiceMock(){
        FileSenderServicemock = Mockito.mock(FileSenderService.class, Mockito.RETURNS_DEEP_STUBS);

        doNothing().when(mock).sendFile(isA(String.class), isA(byte[].class));
        return mock;
    }




Answer 1

如果您使用@SpringBootTest作为集成测试用例，您不需要为mock定义任何测试配置类，您可以简单地使用@MockBean注释将mock注入测试上下文

@RunWith(SpringRunner.class)
@SpringBootTest
public class MyServiceTest{

    @Autowired
    private MyService myService;

    @MockBean
    FileSenderService fileSenderService;

    @Test
    public void shouldCreateAndSendFiles(){
    myService.createAndSendFiles(); 
    verify(fileSenderService, times(2)).sendFile(any(String.class), any(byte[].class));
   }
}