spring-boot-realworld-example-app/src/test/java/io/spring/infrastructure/article/ArticleRepositoryTransactionTest.java

package io.spring.infrastructure.article;

import io.spring.core.article.Article;
import io.spring.core.article.ArticleRepository;
import io.spring.core.user.User;
import io.spring.core.user.UserRepository;
import io.spring.infrastructure.mybatis.mapper.ArticleMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureTestDatabase
public class ArticleRepositoryTransactionTest {
    @Autowired
    private ArticleRepository articleRepository;

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private ArticleMapper articleMapper;


    @Test
    public void transactional_test() {
        User user = new User("aisensiy@gmail.com", "aisensiy", "123", "bio", "default");
        userRepository.save(user);
        Article article = new Article("test", "desc", "body", new String[]{"java", "spring"}, user.getId());
        articleRepository.save(article);
        Article anotherArticle = new Article("test", "desc", "body", new String[]{"java", "spring", "other"}, user.getId());
        try {
            articleRepository.save(anotherArticle);
        } catch (Exception e) {
            assertNull(articleMapper.findTag("other"));
        }
    }

}