Question

我在项目https://github.com/JonkiPro/popcorn/blob/master/core/src/main/java/com/core/jpa/specification/MessageSpecs.java#L30中创建了规范，问题在于片段

if (Optional.ofNullable(subject).isPresent()) {
       predicates.add(cb.like(cb.upper(root.get(MessageEntity_.subject)), "%" + subject.toUpperCase() + "%"));
   }
if (Optional.ofNullable(text).isPresent()) {
       predicates.add(cb.like(cb.upper(root.get(MessageEntity_.text)), "%" + text.toUpperCase() + "%"));
   }

当我写测试时

final Path<String> subjectPath = (Path<String>) Mockito.mock(Path.class);
final Predicate likeSubjectPredicate = Mockito.mock(Predicate.class);
Mockito.when(this.root.get(MessageEntity_.subject)).thenReturn(subjectPath);
Mockito.when(this.cb.like(subjectPath, SUBJECT)).thenReturn(likeSubjectPredicate);

final Path<String> textPath = (Path<String>) Mockito.mock(Path.class);
final Predicate likeTextPredicate = Mockito.mock(Predicate.class);
Mockito.when(this.root.get(MessageEntity_.text)).thenReturn(textPath);
Mockito.when(this.cb.like(subjectPath, TEXT)).thenReturn(likeTextPredicate);

并测试

final Specification<MessageEntity> spec = MessageSpecs.findSentMessagesForUser(USER, SUBJECT, TEXT);

spec.toPredicate(this.root, this.cq, this.cb);
 Mockito
            .verify(this.cb, Mockito.times(1))
            .like(this.cb.upper(this.root.get(MessageEntity_.subject)), "%" + SUBJECT.toUpperCase() + "%");
 Mockito
            .verify(this.cb, Mockito.times(1))
            .like(this.cb.upper(this.root.get(MessageEntity_.text)), "%" + TEXT.toUpperCase() + "%");

它崩溃了异常

  org.mockito.exceptions.verification.TooManyActualInvocations: 
criteriaBuilder.upper(
    Mock for Path, hashCode: 647973805
);

Wanted 1 time:
-> at com.jonki.popcorn.core.jpa.specification.MessageSpecsUnitTests.testFindAllSentMessagesForUser(MessageSpecsUnitTests.java:72)
But was 2 times. Undesired invocation:
-> at com.jonki.popcorn.core.jpa.specification.MessageSpecs.lambda$findSentMessagesForUser$af9d022e$1(MessageSpecs.java:44)

如果我使用GitHub编辑此方法，我将从一个对象中删除upper()方法，例如第一个subject

predicates.add(cb.like(root.get(MessageEntity_.subject), "%" + subject.toUpperCase() + "%"));
predicates.add(cb.like(cb.upper(root.get(MessageEntity_.text)), "%" + subject.toUpperCase() + "%"));

此测试正确显示没有任何错误。

该错误导致upper()方法用于两个对象。这里发生了什么？为什么会这样？

如果将谓词添加到谓词列表中，则使用带有upper（）方法的谓词对象来测试TooManyActualInvocations

0 个答案: