spring data jpa : basic crud test(spring-data-jpa)

spring-data-jpa/src/main/java/com/example/springdatajpa/repository/TeamRepository.java

@@ -0,0 +1,7 @@
+package com.example.springdatajpa.repository;
+
+import com.example.springdatajpa.entity.Team;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface TeamRepository extends JpaRepository<Team, Long> {
+}

spring-data-jpa/src/test/java/com/example/springdatajpa/repository/MemberRepositoryTest.java

@@ -7,6 +7,8 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.annotation.Rollback;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 @SpringBootTest
@@ -28,4 +30,32 @@ public class MemberRepositoryTest {
         assertEquals(findMember.getUsername(), member.getUsername());
         assertEquals(findMember, member); // findMember == member : 같은 트랜잭션 안에서는 영속성 컨텍스트 동일성 보장
     }
+
+    @Test
+    void basicCRUD() {
+        Member member1 = new Member("member1");
+        Member member2 = new Member("member2");
+        memberRepository.save(member1);
+        memberRepository.save(member2);
+
+        // 단건 조회 검증
+        Member findMember1 = memberRepository.findById(member1.getId()).get();
+        Member findMember2 = memberRepository.findById(member2.getId()).get();
+        assertEquals(findMember1, member1);
+        assertEquals(findMember2, member2);
+
+        // 리스트 조회 검증
+        List<Member> all = memberRepository.findAll();
+        assertEquals(2, all.size());
+
+        // 카운트 검증
+        long count = memberRepository.count();
+        assertEquals(2, count);
+
+        // 삭제 검증
+        memberRepository.delete(member1);
+        memberRepository.delete(member2);
+        long deleteCount = memberRepository.count();
+        assertEquals(0, deleteCount);
+    }
 }