多级@Mock和@InjectMocks

Question

所以我明白在Mockito @InjectMocks中会注入@Mock的注释，但是如何处理这种情况呢？

@Mock
private MockObject1 mockObject1;

@Mock
private MockObject2 mockObject2;

@InjectMocks
private SystemUnderTest systemUnderTest = new SystemUnderTest();

想象一下，MockObject2的属性类型为MockObject1，而SystemUnderTest的属性类型为MockObject2。我想将mockObject1注入mockObject2，并将mockObject2注入systemUnderTest。

这可以用注释吗？

Answer 1

由于我在这里没有得到任何回复，我在Mockito论坛上提问。以下是讨论的链接：https://groups.google.com/d/topic/mockito/hWwcI5UHFi0/discussion

总结答案，从技术上讲，这会挫败嘲笑的目的。您应该只模拟SystemUnderTest类所需的对象。在自己模仿的物体中嘲弄东西是没有意义的。

如果你真的想这样做，@ spy可以提供帮助

Answer 2

将@Spy与@InjectMocks结合使用是可能的。对于您的示例，它将是：

@Spy
private MockObject1 mockObject1 = new MockObject1 ();

@Spy @InjectMocks //if MockObject2 has a MockObject1, then it will be injected here.
private MockObject2 mockObject2 = new MockObject2 ();

@InjectMocks
private SystemUnderTest systemUnderTest;

Answer 3

这对我有用：

private MockObject1 mockObject1 = mock(MockObject1.class);

@Spy
private RealObject2 realObject = new RealObject2(mockObject1);

@InjectMocks
private SystemUnderTest systemUnderTest = new SystemUnderTest();

Answer 4

我发现的其他解决方案是使用java sintax代替注释来注入@Spy对象。

@Spy
private MockObject1 mockObject1 = new MockObject1 ();

@InjectMocks //if MockObject2 has a MockObject1, then it will be injected here.
private MockObject2 mockObject2 = spy(MockObject2.class);

@InjectMocks
private SystemUnderTest systemUnderTest;