JPQL 로 작성한 문법 테스트 코드로 작성해 볼 수 있을까요?

안녕하세요. 준준님, 공식 서포터즈 OMG입니다.

본 강의는 스프링부트 환경도 아니고, 별도의 테스트를 작성하지는 않기 때문에 해당 내용은 숙지하고 계시다고 가정하고 구현하였습니다.

applicatio.properties

spring.h2.console.enabled=true
spring.h2.console.path=/h2-console
spring.datasource.url=jdbc:h2:mem:testdb

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>demo</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

package com.example.demo.domain;

import lombok.Getter;
import lombok.Setter;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
@Getter @Setter
public class Member {
    @Id @GeneratedValue(strategy = GenerationType.SEQUENCE)
    private Long id;
    private String name;
}

package com.example.demo.repository;

import com.example.demo.domain.Member;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import javax.persistence.EntityManager;
import javax.persistence.EntityTransaction;
import java.util.List;
import java.util.Optional;

@Transactional
@Repository
public class JPQLMemberRepository implements MemberRepository{

    @Autowired
    private EntityManager em;


    public EntityTransaction getTx() {
        return em.getTransaction();
    }

    public Member save(Member member) {
        em.persist(member);
        return member;
    }

    public void emClose() {
        em.close();
    }

    @Override
    public Optional<Member> findById(Long id) {
        return Optional.empty();
    }

    @Override
    public Optional<Member> findByName(String name) {
        List<Member> result = em.createQuery(
                "SELECT m FROM Member m WHERE m.name = :name", Member.class)
                .setParameter("name", name)
                .getResultList();

        return result.stream().findAny();
    }
}

package com.example.demo.repository;

import com.example.demo.domain.Member;

import java.util.Optional;

public interface MemberRepository {
    Optional<Member> findById(Long id);

    Optional<Member> findByName(String name);
    Member save(Member member);
}

package com.example.demo.repository;

import com.example.demo.domain.Member;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.transaction.annotation.Transactional;

import static org.assertj.core.api.Assertions.assertThat;

@SpringBootTest
@Transactional
class JPQLMemberRepositoryTest {

    @Autowired
    MemberRepository repository;

    @Test
    void insertData() {
        Member member = new Member();
        member.setName("sungjun");

        repository.save(member);
        Member result = repository.findByName(member.getName()).get();

        assertThat(result).isEqualTo(member);
    }
}

감사합니다.