JPA存储库的Junit测试用例

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.test.context.junit4.SpringRunner;

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

@RunWith(SpringRunner.class)
@DataJpaTest
public class JPARepositoryTest {

    @Autowired
    private UserRepository userRepository;

    @Before
    public void setUp() {
        // 在此设置测试环境，例如创建JPA实体管理器工厂、JPA事务等
    }

    @Test
    public void testSaveUser() {
        User user = new User("John Doe", "john.doe@example.com");
        userRepository.save(user);

        assertThat(user.getId()).isNotNull();
    }

    @Test
    public void testFindUserByEmail() {
        User user = new User("John Doe", "john.doe@example.com");
        userRepository.save(user);

        User foundUser = userRepository.findByEmail("john.doe@example.com");

        assertThat(foundUser).isEqualTo(user);
    }

    // 其他测试方法...

}