Question

这不是Test class with a new() call in it with Mockito的重复。我正在尝试编写一个测试来验证在我的间谍对象（mockToyFacade）的构造函数中是否正在调用某些方法。

受测试的类是ToyFactoryFacade。客户的想法是与ToyFactoryFacade（包装ToyFactory）交互以生成ToyFacades，它本身就是玩具对象的包装。

我想用Mockito验证什么？

我想验证是否在ToyFacade上调用 addToyName（toyName）和 addCreationTime（creationTimestamp）。这两种方法都在ToyFacade的构造函数中调用。

问题是什么？

当我试图监视ToyFacade，并验证上述方法都被调用时，我收到一个错误，其中显示“实际上，与此模拟没有交互。”当我打电话给方法分开（即，不通过构造函数），验证检查正确。 我不确定我做错了什么。

测试代码

public class ToyFactoryFacadeTest {
   private Toy mockToy;
   private ToyFacade mockToyFacade;
   // System under test.
   private ToyFactoryFacade toyFactoryFacade;
   private ToyFactory mockToyFactory;
   @Before
   public void setup() {
        mockToy = mock(Toy.class);
        mockToyFacade = spy(new ToyFacade(mockToy, "Phone", System.currentTimeMillis()));
        mockToyFactory = mock(ToyFactory.class);
        toyFactoryFacade  = new ToyFactoryFacade(mockToyFactory) {
            @Override
            public Toy getToyFacade(String toyName, long creationTimestamp){
                return mockToyFacade;
            }
        };  
    }

    @Test
    public void testToyFactoryFacade() {
        toyFactoryFacade.initializeAndGetToy("Phone", System.currentTimeMillis());
        verify(mockToyFacade).addToyName("Phone");
        verify(mockToyFacade).addCreationTime(anyLong());
    }
}

源代码

public class ToyFactoryFacade { 
    private final ToyFactory toyFactory;
    public ToyFactoryFacade(ToyFactory toyFactory) {
      this.toyFactory = toyFactory;
    }

    public ToyFacade initializeAndGetToy(String toyName, long creationTimestamp)
    {
        getToyFacade(toyName, creationTimestamp);
    }

    // For testing.
    protected ToyFacade getToyFacade(String toyName, long creationTimestamp 
    {
        return new ToyFacade(toyFactory.newToy(), toyName, creationTimestamp);
    }
}

public class ToyFactory {
    public Toy newToy() {
     return new Toy();
    }
} 

public class ToyFacade {
    private final Toy toy;
    public ToyFacade(Toy toy, String toyName, long creationTimeStamp) {
        this.toy = toy;
        addToyName(toyName);
        addCreationTime(creationTimestamp);
  }

    public void addToyName(String name) {
        toy.addToyName(toyName);
    }

    public void addCreationTime(long timestamp) {
        toy.addCreationTime(timestamp);
    }
}

public class Toy {
    public String toyName;
    public String creationTimestamp;
    public void addToyName(String name) {
        toyName = name;
    }

    public void addCreationTime(long timestamp) {
        creationTimestamp = timestamp;
    }
}

Answer 1

您的测试没有按照您的期望进行，因为在您创建间谍之前，您尝试验证的方法调用已经发生。你真正想要做的是测试这两个方法调用的效果，而不是调用本身。这看起来像

verify(mockToy).addToyName("Phone");
verify(mockToy).addCreationTime(timestamp);

其中timestamp是您在setUp方法中传入的内容。

Mockito：在构造函数中监视调用（Java）

我想用Mockito验证什么？

问题是什么？

测试代码

源代码

1 个答案: