인프런 커뮤니티 질문&답변
작성한 질문수
MemberServiceTest 이게 왜 틀리죠?
작성
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44
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수정됨
0
package jpabook.jpashop.service;
import jpabook.jpashop.domain.Member;
import jpabook.jpashop.repository.MemberRepository;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.transaction.annotation.Transactional;
//@ExtendWith(SpringExtension.class) //@SpringBootTest에 이미 정의됨.(중복)
@SpringBootTest
@Transactional
class MemberServiceTest {
@Autowired MemberService memberService;
@Autowired MemberRepository memberRepository;
@Test
public void 회원가입()throws Exception{
//given
Member member=new Member();
member.setUsername("kim");
//when
Long savedId = memberService.join(member);
//then
Assertions.assertThat(member).isEqualTo(memberRepository.findOne(savedId));
}
}junit 5 버전이라 이렇게 고쳤는데도 테스트에 실패합니다.
setUsername은 구버전 MemberRepository에서 오류가 나서 Member의 name을 username으로 바꿨습니다.
test/resources/application.yml에
spring:
logging.level:
org.hibernate.SQL:debug이것도 넣어줬는데 안됩니다
답변 1
0
보내주신 코드 살펴봤습니다!
EntityManager em = null 해결: @PersistenceContext 를 통해 주입하던 em을 롬복 @RequiredArgsConstructor 를 통한 생성자 주입으로 바꾸셨습니다. 해당 방법은 not null인 필드에 한해서만 생성자를 자동으로 만들어주게 됩니다. not null 인 필드가 되려면 대상 필드에 @NonNull 이 붙어있거나 final 키워드가 붙어 있어야 합니다!
@Repository //스프링빈으로 등록(@Component가 들어있어서 컴포넌트 스캔대상) @RequiredArgsConstructor public class MemberRepository { //스프링이 EntityManger를 만들어서 여기다 주입(Injection)해줌 //스프링이 생성한 JPA의 엔티티 매니저를 지가 여기다 주입해줌 // @PersistenceContext //Service와 마찬가지로 @RequiredArgsConstructor쓰면 영속성 컨텍스트 생략가능 // private EntityManager em; // 기존 private final EntityManager em; // TODO final 키워드를 추가해주세요! ... }Member entity 와 필드 일치: username으로 변경해주셨다면 MemberRepository의 findByName에 있는 JPQL 에서의 m.name 도 m.username 으로 바꿔주세요!
public List<Member> findByName(String name) { return em.createQuery("select m from Member m where m.username= :name", Member.class) .setParameter("name", name) .getResultList(); }
이렇게 해주시면 테스트가 통과하게 됩니다!
감사합니다!
https://drive.google.com/file/d/1XYU4QN9zO5nphBXNf-PTd4Ph7xbleio7/view?usp=sharing
1) test/jpabook/jpashop/service/MemberServiceTest.java 실행하면 됩니다.
2)
Java HotSpot(TM) 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended
2024-11-27T15:33:29.929+09:00 INFO 11428 --- [ main] p6spy : #1732689209929 | took 0ms | rollback | connection 4| url jdbc:h2:mem:0f23e7e7-05f2-4edd-b11b-02a2cb3a88d3
;
java.lang.NullPointerException: Cannot invoke "jakarta.persistence.EntityManager.createQuery(String, java.lang.Class)" because "this.em" is null
at jpabook.jpashop.repository.MemberRepository.findByName(MemberRepository.java:44)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:355)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:138)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:720)
at jpabook.jpashop.repository.MemberRepository$$SpringCGLIB$$0.findByName(<generated>)
at jpabook.jpashop.service.MemberService.validateDuplicateMember(MemberService.java:51)
at jpabook.jpashop.service.MemberService.join(MemberService.java:43)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:355)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:379)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:768)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:720)
at jpabook.jpashop.service.MemberService$$SpringCGLIB$$0.join(<generated>)
at jpabook.jpashop.service.MemberServiceTest.회원가입(MemberServiceTest.java:26)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)