我有一个类在其中一个方法中使用mapper来返回作为DTO列表的结果。我想使用一个真实的的mapper方法，因为它给了我检查真正功能的可能性。
这是我的测试课

@ExtendWith(MockitoExtension.class)
public class UserCardServiceTest {

    @Mock
    private MyCardRepository myCardRepository;

    @Mock(answer = Answers.CALLS_REAL_METHODS)
    private MyMapper myMapper;

    @InjectMocks
    private MyServiceImpl underTest;
    
 @BeforeEach
    void setUp() {
      listOfExpiredUserCardEntities = new ArrayList<>(List.of(
                getValidUserCardEntity()
                        .setExpirationDate(LocalDate.now().minusDays(1))
                        .setBlocked(false),
                getValidUserCardEntity()
                       .setExpirationDate(LocalDate.now().minusWeeks(1))
                        .setBlocked(false),
                    
                getValidUserCardEntity()
                        .setExpirationDate(LocalDate.now().minusYears(1))
                        .setBlocked(false),
                getValidUserCardEntity()
                    .setExpirationDate(LocalDate.now().minusMonths(1))
                        .setBlocked(false));
              }

 @Test
    void shouldChangeStatusIfCardExpired() {
        
        given(myCardRepository.findAllByUserId(1L))
                .willReturn(listOfCardEntities);
        
        assertThat(underTest.getActiveUserCardsById(1L)).isNotNull().hasSize(4);
        assertThat(underTest.getActiveUserCardsById(1))
                .extracting(CardDto::isBlocked)
                .containsExactly(true, true, true, true)
                .doesNotContainNull();
    }

我的测试方法：

@RequiredArgsConstructor
public class MyServiceImpl implements MyCardService {

    private final MyCardRepository myCardRepository;

    private final MyMapper myMapper;

    @Override
    public List<CardDto> getActiveUserCardsById(final long userId) {
       
        List<CardEntity> listOfEntities = myRepository.findAllByUserId(userId);

        listOfEntities.stream().filter(validationService::isCardExpired)
                .forEach(userCard -> userCard.setBlocked(true));

        List<CardEntity> sorted = listOfEntities.stream()
                .sorted(o -> o.getName().toUpperCase())
                .toList();

        return myMapper
                .listOfCardEntitiesToCardDto(sorted);
    }

但结果我得到：

java.lang.AssertionError: 
Expected size: 4 but was: 0 in:
[]

有谁能告诉我如何调用一个真实的的mapstructMap器方法，但没有准备好答案吗？是否可以只使用@ExtendWith（MockitoExtension.class）？