[Spring Boot Test] @Validated 사용 시 private method 테스트 이슈(@Autowired 의존성 null)

@Validated 기능 사용 시 Spring의 AOP Proxy 동과 관련되어 AService 클래스내에 @Autowired BService bService가 null 해결 방법

@Validated
@Service
class AService {
	@Autowired
    private BService bService;
    
    private Test getTest() {
    	// bService null인 상황일때
    }
}





@ActiveProfiles({ Application.ACTIVE_PROFILE_TEST_CASE })
@SpringBootTest
@ExtendWith(SpringExtension.class)
@TestMethodOrder(MethodOrderer.Alphanumeric.class)
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
@Slf4j
class TestCase {
    @MockBean
    private BService bService;

    @Autowired
    private AService aService;

    @Test
    void test() {
        ...
        BService bService = new BService();
        Mockito.when(bService.get1("1")).thenReturn(new Test());
        ...

        ReflectionTestUtils.invokeMethod(AopTestUtils.getTargetObject(aService), AService.class, , "getTest");
    }
}