스프링 DB접근 기술 - 스프링 통합 테스트

스프링 컨테이너와 DB까지 연결한 통합 테스트를 진행

 

MemberServiceIntegrationTest

package hello.hellospring.service;

import hello.hellospring.domain.Member;
import hello.hellospring.repository.MemberRepository;
import hello.hellospring.repository.MemoryMemberRepository;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.transaction.annotation.Transactional;

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

@SpringBootTest
@Transactional
class MemberServiceIntegrationTest {

    @Autowired
    MemberRepository memberRepository;
    @Autowired
    MemberService memberService;

    @Test
    void 회원가입() {
        //given
        Member member = new Member();
        member.setName("hello");

        //when
        Long saveId = memberService.join(member);

        //then
        Member findMember = memberService.findOne(saveId).get();
        Assertions.assertThat(member.getName()).isEqualTo(findMember.getName());
    }

    @Test
    void 중복_회원_예외(){
        //given
        Member member1 = new Member();
        member1.setName("spring");

        Member member2 = new Member();
        member2.setName("spring");

        //when
        memberService.join(member1);
        IllegalStateException e = assertThrows(IllegalStateException.class , () -> memberService.join(member2));

        Assertions.assertThat(e.getMessage()).isEqualTo("이미 존재하는 회원입니다.");

        //then

    }
}

@Autowired - 테스트 코드에서는 간편하게 필드 주입을 해도 무방하다.

@Transactional - 테스트 시작 전에 트랜잭션을 시작하고 , 테스트 완료 후에 항상 롤백한다. ( + @Commit)

@SpringBootTest - 스프링 컨테이너와 테스트를 함께 실행한다.