Java 问：Mockito-使用@Mock和@Autowired

我想使用

Mockito

测试一个服务类，它还有两个其他服务类，如下所示

@Service
public class GreetingService {

    private final Hello1Service hello1Service;
    private final Hello2Service hello2Service;

    @Autowired
    public GreetingService(Hello1Service hello1Service, Hello2Service hello2Service) {
        this.hello1Service = hello1Service;
        this.hello2Service = hello2Service;
    }

    public String greet(int i) {
        return hello1Service.hello(i) + " " + hello2Service.hello(i);
    }
}

@Service
public class Hello1Service {

    public String hello(int i) {

        if (i == 0) {
            return "Hello1.";
        }

        return "Hello1 Hello1.";
    }
}

@Service
public class Hello2Service {

    public String hello(int i) {

        if (i == 0) {
            return "Hello2.";
        }

    return "Hello2 Hello2.";
    }
}    

我知道如何用

Mockito

模拟

Hello1Service.class

和

Hello2Service.class

，如下所示

@RunWith(MockitoJUnitRunner.class)
public class GreetingServiceTest {

    @InjectMocks
    private GreetingService greetingService;

    @Mock
    private Hello1Service hello1Service;

    @Mock
    private Hello2Service hello2Service;

    @Test
    public void test() {

        when(hello1Service.hello(anyInt())).thenReturn("Mock Hello1.");
        when(hello2Service.hello(anyInt())).thenReturn("Mock Hello2.");

        assertThat(greetingService.greet(0), is("Mock Hello1. Mock Hello2."));
    }
}

我想模拟

Hello1Service.class

并使用

@Autowired

注入

Hello2Service.class

，如下所示。 我尝试使用

@SpringBootTest

，但它不起作用。 有更好的办法吗

@RunWith(MockitoJUnitRunner.class)
public class GreetingServiceTest {

    @InjectMocks
    private GreetingService greetingService;

    @Mock
    private Hello1Service hello1Service;

    @Autowired
    private Hello2Service hello2Service;

    @Test
    public void test() {

        when(hello1Service.hello(anyInt())).thenReturn("Mock Hello1.");
        assertThat(greetingService.greet(0), is("Mock Hello1. Hello2."));
    }
}

---

您希望使用一些要形成的功能注入依赖项，然后使用

@Spy

。 您不需要加载Spring容器并使用

@Autowired

@Spy
private Hello2Service hello2Service=new Hello2Service();

您可以阅读有关模拟与间谍的更多详细信息

---

您可以使用Spy更改真实对象而不是模拟对象。 测试代码将是这样的

@RunWith(MockitoJUnitRunner.class)
public class GreetingServiceTest {

    @InjectMocks
    private GreetingService greetingService;

    @Mock
    private Hello1Service hello1Service;

    @Spy
    private Hello2Service hello2Service;

    @Test
    public void test() {

        when(hello1Service.hello(anyInt())).thenReturn("Mock Hello1.");
        assertThat(greetingService.greet(0), is("Mock Hello1. Hello2."));
    }
}

---

谢谢你的回答。它起作用了。如果Hello2Service有一个jpa存储库，我应该如何实例化Hello2Service？像

public class public class Hello2Service{@Autowired HelloRepository HelloRepository；..

@Repository接口HelloRepository扩展了JpaRepository…