[Spring]순수 자바 개발-회원 도메인 개발과 테스트

 

이전 편 : 2025.01.12 - [🍃 Spring] - [Spring]스프링 핵심 원리-기본편. 프로젝트 생성과 비지니스 요구사항.

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• member 패키지를 만들어서 몰아넣었습니다.
  

  

  🌟 원래는 domain, service, repository 나눠 담아야 해요.

• 등급 enum grade

  package hello.core.member;
  
  public enum Grade {
      BASIC,
      VIP
  }

  회원 등급 두가지를 상수 클래스로 만들어 묶었습니다.
  2024.11.28 - [☕ JAVA/☕ Variables & Data Type] - [JAVA]enum
• 도메인 Member

  package hello.core.member;
  
  public class Member {
  
      private Long id;
      private String name;
      private Grade grade;
  
      public Member(Long id, String name, Grade grade) {
          this.id = id;
          this.name = name;
          this.grade = grade;
      }
  
      public Long getId() {
          return this.id;
      }
  
      public void setId(Long id) {
          this.id = id;
      }
  
      public String getName() {
          return this.name;
      }
  
      public void setName(String name) {
          this.name = name;
      }
  
      public Grade getGrade() {
          return this.grade;
      }
  
      public void setGrade(Grade grade) {
          this.grade = grade;
      }
  
  }

• 인터페이스 리포지토리 MemberRepository

  package hello.core.member;
  
  public interface MemberRepository {
  
      void save(Member member);
  
      Member findById(Long memeberId);
  }

• 리포지토리 MemoryMemberRepository

  package hello.core.member;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class MemoryMemberRepository implements MemberRepository{
  
      private static Map<Long, Member> store = new HashMap<>();
  
      @Override
      public void save(Member member) {
          store.put(member.getId(), member);
      }
  
      @Override
      public Member findById(Long memeberId) {
          return store.get(memeberId);
      }
  
  }

• 인터페이스 서비스 MemberService

  package hello.core.member;
  
  public interface MemberService {
  
      void join(Member member);
  
      Member findMember(Long memberId);
  }

• 서비스 MemberServiceImpl

  package hello.core.member;
  
  public class MemberServiceImpl implements MemberService{
  
      private final MemberRepository memberRepository = new MemoryMemberRepository();
  
      @Override
      public void join(Member member) {
          memberRepository.save(member);
      }
  
      @Override
      public Member findMember(Long memberId) {
          return memberRepository.findById(memberId);
      }
  
  }

 

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테스트

 

• 비권장 테스트코드

  

  
  

  

• junit을 이용한 권장 테스트 코드
  
  2025.01.05 - [🍃 Spring/🍃 Spring Boot] - [SpringBoot]회원관리-서비스와 테스트
  설명은 이 포스트를 참고바랍니다.
  

  

  
  

  

  package hello.core.member;
  
  import org.assertj.core.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  public class MemberServiceTest {
  
      MemberService memberService = new MemberServiceImpl();
  
      @Test
      void join() {
          // given
          Member member = new Member(1L, "memberA", Grade.VIP);
  
          // when
          memberService.join(member);
          Member findMember = memberService.findMember(1L);
  
          // then
          Assertions.assertThat(member).isEqualTo(findMember);
      }
  }

 

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※ 참조 : https://www.inflearn.com/roadmaps/373