如何在测试中使用真实的MapStruct映射器方法？

huangapple
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英文:

How to use a real mapstruct mapper method in test?

问题

我有一个类，其中一个方法中使用了映射器来将结果返回为DTO列表。我想使用一个真正的映射器方法，因为它可以让我检查真实的功能。

这是我的测试类：

  1. @ExtendWith(MockitoExtension.class)
  2. public class UserCardServiceTest {
  4.     @Mock
  5.     private MyCardRepository myCardRepository;
  7.     @Mock(answer = Answers.CALLS_REAL_METHODS)
  8.     private MyMapper myMapper;
  10.     @InjectMocks
  11.     private MyServiceImpl underTest;
  12.     
  13.     // ...其他部分...
  14. }

我要测试的方法如下：

  1. @RequiredArgsConstructor
  2. public class MyServiceImpl implements MyCardService {
  4.     private final MyCardRepository myCardRepository;
  6.     private final MyMapper myMapper;
  8.     @Override
  9.     public List<CardDto> getActiveUserCardsById(final long userId) {
  10.        
  11.         List<CardEntity> listOfEntities = myRepository.findAllByUserId(userId);
  13.         listOfEntities.stream().filter(validationService::isCardExpired)
  14.                 .forEach(userCard -> userCard.setBlocked(true));
  16.         List<CardEntity> sorted = listOfEntities.stream()
  17.                 .sorted(o -> o.getName().toUpperCase())
  18.                 .toList();
  20.         return myMapper
  21.                 .listOfCardEntitiesToCardDto(sorted);
  22.     }
  23. }

但是，我得到以下结果：

  1. java.lang.AssertionError: 
  2. Expected size: 4 but was: 0 in:
  3. []

有人能否告诉我如何调用一个真正的MapStruct映射器方法，而不是准备好的答案。是否可以只使用@ExtendWith(MockitoExtension.class)来实现？

【注意】：上述代码示例中的 "<" 和 ">" 字符是 HTML 实体编码，用于表示尖括号 "<" 和 ">"。在实际代码中应使用正常的尖括号。

英文:

I have a class that uses mapper in one of the methods to return the result as a list of DTOs.
I want to use a real mapper method as it gives me possibility to check real functionality.

It's my test class:

  1. @ExtendWith(MockitoExtension.class)
  2. public class UserCardServiceTest {
  4.     @Mock
  5.     private MyCardRepository myCardRepository;
  7.     @Mock(answer = Answers.CALLS_REAL_METHODS)
  8.     private MyMapper myMapper;
  10.     @InjectMocks
  11.     private MyServiceImpl underTest;
  12.     
  13.  @BeforeEach
  14.     void setUp() {
  15.       listOfExpiredUserCardEntities = new ArrayList&lt;&gt;(List.of(
  16.                 getValidUserCardEntity()
  17.                         .setExpirationDate(LocalDate.now().minusDays(1))
  18.                         .setBlocked(false),
  19.                 getValidUserCardEntity()
  20.                        .setExpirationDate(LocalDate.now().minusWeeks(1))
  21.                         .setBlocked(false),
  22.                     
  23.                 getValidUserCardEntity()
  24.                         .setExpirationDate(LocalDate.now().minusYears(1))
  25.                         .setBlocked(false),
  26.                 getValidUserCardEntity()
  27.                     .setExpirationDate(LocalDate.now().minusMonths(1))
  28.                         .setBlocked(false));
  29.               }
  31.  @Test
  32.     void shouldChangeStatusIfCardExpired() {
  33.         
  34.         given(myCardRepository.findAllByUserId(1L))
  35.                 .willReturn(listOfCardEntities);
  36.         
  37.         assertThat(underTest.getActiveUserCardsById(1L)).isNotNull().hasSize(4);
  38.         assertThat(underTest.getActiveUserCardsById(1))
  39.                 .extracting(CardDto::isBlocked)
  40.                 .containsExactly(true, true, true, true)
  41.                 .doesNotContainNull();
  42.     }

My method to test:

  1. @RequiredArgsConstructor
  2. public class MyServiceImpl implements MyCardService {
  4.     private final MyCardRepository myCardRepository;
  6.     private final MyMapper myMapper;
  8.     @Override
  9.     public List&lt;CardDto&gt; getActiveUserCardsById(final long userId) {
  10.        
  11.         List&lt;CardEntity&gt; listOfEntities = myRepository.findAllByUserId(userId);
  13.         listOfEntities.stream().filter(validationService::isCardExpired)
  14.                 .forEach(userCard -&gt; userCard.setBlocked(true));
  16.         List&lt;CardEntity&gt; sorted = listOfEntities.stream()
  17.                 .sorted(o -&gt; o.getName().toUpperCase())
  18.                 .toList();
  20.         return myMapper
  21.                 .listOfCardEntitiesToCardDto(sorted);
  22.     }

But as a result I get:

  1. java.lang.AssertionError: 
  2. Expected size: 4 but was: 0 in:
  3. []

Can anyone say how to invoke a real mapstruct mapper method, but not prepared answer.
Is it possible to do with only @ExtendWith(MockitoExtension.class)?

答案1

得分: 1

我在我的项目中也遇到了相同的问题。我使用了以下解决方案：

  1. import org.mapstruct.factory.Mappers;
  2. import org.mockito.InjectMocks;
  3. import org.mockito.Mock;
  4. import org.mockito.Spy;
  6. ......
  8. @Mock
  9. private MyCardRepository myCardRepository;
  11. @Spy
  12. private MyMapper myMapper = Mappers.get(MyMapper.class);
  14. @InjectMocks
  15. private MyServiceImpl underTest;

这只需使用 @ExtendWith(MockitoExtension.class) 即可正常工作，无需启动整个SpringBoot上下文 如何在测试中使用真实的MapStruct映射器方法？

英文:

I had the same problem in my projects. I am using the following solution:

  1. import org.mapstruct.factory.Mappers;
  2. import org.mockito.InjectMocks;
  3. import org.mockito.Mock;
  4. import org.mockito.Spy;
  6. .....
  8. @Mock
  9. private MyCardRepository myCardRepository;
  11. @Spy
  12. private MyMapper myMapper = Mappers.get(MyMapper.class);
  14. @InjectMocks
  15. private MyServiceImpl underTest;

This works with only @ExtendWith(MockitoExtension.class). There is no need to start the entire SpringBoot Context 如何在测试中使用真实的MapStruct映射器方法？

huangapple
  • 本文由 发表于 2023年2月6日 16:23:09
  • 转载请务必保留本文链接：https://go.coder-hub.com/75358872.html
  • java
  • mapstruct
  • mocking
  • mockito
  • spring-boot
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