带注入存储库的junit测试服务

Question

我有一个需要测试的服务，它已经注入了存储库

@Service
public class MyService {

    @Inject
    private MyRepo myRepo;

    public someFunctionToTest(){
        // body...
    }
}

然而我无法弄清楚如何为服务编写正确的junit测试

我试过以下：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = { Application.class })
@Configuration
public class NumberGeneratorServiceTest {

    @Inject
    private MyService myService;

    @Inject
    private MyRepository MyRepository;

    @Test
    public void test() {
        //do something
    }

}

在这种情况下我得到错误：Failed to load ApplicationContext Caused by: org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'getMyRepository': Requested bean is currently in creation: Is there an unresolvable circular reference?

使用注射测试服务的正确方法是什么？

编辑：MyRepository

@Repository
@AllArgsConstructor
@NoArgsConstructor
public class MyRepositoryImpl implements MyRepository {

    @Inject
    private MyJPARepository entityRepository;

//some methods

}