https://github.com/gihyeon6394/sample-jpa

jpa CRUD 예제
https://github.com/gihyeon6394/sample-jpa

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jpa CRUD 예제

• Host: GitHub
• URL: https://github.com/gihyeon6394/sample-jpa
• Owner: gihyeon6394
• Created: 2023-11-29T02:58:59.000Z (12 months ago)
• Default Branch: master
• Last Pushed: 2023-11-29T07:54:54.000Z (12 months ago)
• Last Synced: 2023-11-30T04:21:58.444Z (12 months ago)
• Language: Java
• Size: 3.91 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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### 환경

- Java 17

- Spring Boot 3.2.0

- Maven 4.0

- H2 Database

## 테스트 코드

```java

package com.sample.jpa;

import jakarta.persistence.EntityManager;

import jakarta.persistence.PersistenceContext;

import org.junit.jupiter.api.DisplayName;

import org.junit.jupiter.api.Test;

import org.springframework.boot.test.context.SpringBootTest;

import org.springframework.transaction.annotation.Transactional;

import static org.hamcrest.MatcherAssert.assertThat;

import static org.hamcrest.Matchers.*;

@SpringBootTest

public class CrudTest {

    @PersistenceContext

    private EntityManager entityManager;

    @Test

    @DisplayName("Create")

    @Transactional

    public void create() {

        Member member = new Member();

        member.setName("Karina");

        entityManager.persist(member);

        entityManager.flush();

        entityManager.clear();

        Member saved = entityManager.find(Member.class, member.getId());

        assertThat(saved.getName(), is("Karina"));

    }

    public Member setUp() {

        Member member = new Member();

        member.setName("Karina");

        entityManager.persist(member);

        entityManager.flush();

        entityManager.clear();

        return member;

    }

    @Test

    @DisplayName("Read")

    @Transactional(readOnly = true)

    public void read() {

        long generatedId = setUp().getId();

        Member generated = entityManager.find(Member.class, generatedId);

        assertThat(generated, is(notNullValue()));

        assertThat(generated.getId(), is(generatedId));

        assertThat(generated.getName(), is("Karina"));

    }

    @Test

    @DisplayName("Update")

    @Transactional

    public void update() {

        long generatedId = setUp().getId();

        Member generated = entityManager.find(Member.class, generatedId);

        generated.setName("Karina (updated)");

        entityManager.persist(generated);

        entityManager.flush();

        entityManager.clear();

        Member updated = entityManager.find(Member.class, generated.getId());

        assertThat(updated.getName(), is("Karina (updated)"));

    }

    @Test

    @DisplayName("Delete")

    @Transactional

    public void delete() {

        long generatedId = setUp().getId();

        Member generated = entityManager.find(Member.class, generatedId);

        entityManager.remove(generated);

        entityManager.flush();

        entityManager.clear();

        Member deleted = entityManager.find(Member.class, generatedId);

        assertThat(deleted, is(nullValue()));

    }

}

```