java – mockito验证方法调用inside方法

2024年1月24日 153次阅读

对于单元测试,我试图验证是否存在

一种使用mockito验证方法内部方法调用的方法？

一个例子是：

public delete(param) {
    VideoService.deleteVideo(param); << i want to verify the call of this method
    return etc.. 
}

我可以检查是否调用删除：

verify(mock,times(1)).delete(param);

还有像检查内部方法的方法,如：
    验证(模拟,倍(1))删除(PARAM).VideoService.deleteVideo(PARAM).

最佳答案 你可以使用间谍.

public class MyVideoService {

  private VideoService videoService;

  public MyVideoService(VideoService videoService) {
    this.videoService = videoService;
  }

  public void delete(String param) {
    videoService.deleteVideo(param);
  }
}

public class VideoService {
  public void deleteVideo(String param) {
  }
}

如果您现在要测试使用MyVideoService的对象.例如.

public class ObjectThatUsesMyVideoService {

  private MyVideoService myVideoService;

  ObjectThatUsesMyVideoService(MyVideoService myVideoService) {
    this.myVideoService = myVideoService;
  }

  public void deleteVideo(String param) {
    myVideoService.delete(param);
  }
}

你可以写这样的测试

public class MyVideoServiceTest {

  @Test
  public void delete(){
    // VideoService is just a mock
    VideoService videoServiceMock = Mockito.mock(VideoService.class); 

    // Creating the real MyVideoService
    MyVideoService myVideoService = new MyVideoService(videoServiceMock);

    // Creating a spy proxy
    MyVideoService myVideoServiceSpy = Mockito.spy(myVideoService);

    ObjectThatUsesMyVideoService underTest = new ObjectThatUsesMyVideoService(myVideoServiceSpy);

    underTest .deleteVideo("SomeValue");

    // Verify that myVideoService was invoked
    Mockito.verify(myVideoServiceSpy, Mockito.times(1)).delete("SomeValue");

    // Verify that myVideoService invoked the VideoService
    Mockito.verify(videoServiceMock, Mockito.times(1)).deleteVideo("SomeValue");
  }
}
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