Spring boot controller test - mock repository but test actual service

Question

I'm trying to write a test class in Spring boot 2 where:

• I want to test a controller
• I want to mock a repository
• I want to inject a service as is (i.e. without mocking it)

The class looks something like:

@RunWith(SpringRunner.class)
@WebMvcTest(MyController.class)
public class MyControllerTest {
    @Autowired
    private MockMvc mvc;
    @MockBean
    private MyRepositoryInterface myRepository;
    @Autowired
    private MyService myService;
    // tests follow ...
}

The (only) implementation of MyService is annotated with @Service and allows repository injection through its @Autowired constructor:

@Service
public class MyActualService implements MyService {
    private MyRepository repo;
    @Autowired
    public MyActualService(MyRepository repo) {
        this.repo = repo;
    }
    // ...
} 

I'm getting a NoSuchBeanDefinitionException when running the test, broadly stating "no MyService available".

I suspect I may require a specific configuration for the test to pick up the service, but I'm getting utterly confused by the online literature available.

Any pointer?

Answer 1

After consulting the docs (I did not read properly in the first instance), as pointed out by jonsharpe, I managed to wrangle a working solution:

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class MyControllerTest {
    @Autowired
    private MockMvc mvc;
    @MockBean
    private MyRepositoryInterface myRepository;

    // no need to reference the service explicitly

    // ... tests follow
}

The above retrieves the service as it loads the full application configuration, and only mocks the repository as directed.

I could probably write an ad-hoc configuration to better fit the requirements, but this works "out of the box" already.