JPA와 DB설정, 동작확인

resource 파일 가서 원래 있던거 삭제 시키고 yml이라는 걸로 다시 만들어서씀.

main/resources/application.yml
spring:
 datasource:
 url: jdbc:h2:tcp://localhost/~/jpashop
 username: sa
 password:
 driver-class-name: org.h2.Driver
 jpa:
 hibernate:
 ddl-auto: create
 properties:
 hibernate:
# show_sql: true
 format_sql: true
logging.level:
 org.hibernate.SQL: debug //hibernate를 SQL로 다보여달라는 건데,
# org.hibernate.type: trace #스프링 부트 2.x, hibernate5
# org.hibernate.orm.jdbc.bind: trace #스프링 부트 3.x, 

package jpabook.jpashop;

import org.aspectj.lang.annotation.Around;
import org.assertj.core.api.Assertions;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.junit4.SpringRunner;

import static org.junit.jupiter.api.Assertions.*;

@RunWith(SpringRunner.class)
@SpringBootTest
public class MemberRepositoryTest {

    @Autowired MemberRepository memberRepository;

    @Test
    public void testMember() throws Exception { 
        // 엔티티 메니를 통한 모든 데이터의 변경은 tranjection 안에서 일어나야함. 고로 에러.
        //

        //given
        Member member = new Member();
        member.setUsername("memberA");

        //when
        Long saveId = memberRepository.save(member);
        Member findMember = memberRepository.find(saveId);

        //then
        Assertions.assertThat(findMember.getId()).isEqualTo(member.getId());
        Assertions.assertThat(findMember.getUsername()).isEqualTo(member.getUsername());
    }

}

@Test
    @Transactional
    @Rollback(false) //transactional이 가지고 있는 rollback시켜버리는 성질을 거짓으로 없애버림.
                     //  고로 데이터가 저장됨.
    public void testMember() throws Exception {
        //given
        Member member = new Member();
        member.setUsername("memberA");

        //when
        Long saveId = memberRepository.save(member);
        Member findMember = memberRepository.find(saveId);

        //then
        Assertions.assertThat(findMember.getId()).isEqualTo(member.getId());
        Assertions.assertThat(findMember.getUsername()).isEqualTo(member.getUsername());
    }

}

@Test
    @Transactional
    @Rollback(false)
    public void testMember() throws Exception {
        //given
        Member member = new Member();
        member.setUsername("memberA");

        //when
        Long saveId = memberRepository.save(member);
        Member findMember = memberRepository.find(saveId);

        //then
        Assertions.assertThat(findMember.getId()).isEqualTo(member.getId());
        Assertions.assertThat(findMember.getUsername()).isEqualTo(member.getUsername());
        Assertions.assertThat(findMember).isEqualTo(member); // 같은 트랜젝션 안에서 정의된 연속성 entity는 같을수밖에 없음.
        System.out.println("findMember == member: " + (findMember == member));
    }

 

 

출처 : 인프런 강의: 실전! 스프링 부트와 JPA 활용1 - 웹 애플리케이션 개발

https://www.inflearn.com/course/%EC%8A%A4%ED%94%84%EB%A7%81%EB%B6%80%ED%8A%B8-JPA-%ED%99%9C%EC%9A%A9-1/dashboard