test: transaction test

src/main/java/io/spring/MyBatisConfig.java

@@ -0,0 +1,9 @@
+package io.spring;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+@Configuration
+@EnableTransactionManagement
+public class MyBatisConfig {
+}

src/main/java/io/spring/infrastructure/repository/MyBatisArticleRepository.java

@@ -5,6 +5,7 @@ import io.spring.core.article.ArticleRepository;
 import io.spring.core.article.Tag;
 import io.spring.infrastructure.mybatis.mapper.ArticleMapper;
 import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.Optional;
 
@@ -17,6 +18,7 @@ public class MyBatisArticleRepository implements ArticleRepository {
     }
 
     @Override
+    @Transactional
     public void save(Article article) {
         if (articleMapper.findById(article.getId()) == null) {
             createNew(article);
@@ -26,13 +28,13 @@ public class MyBatisArticleRepository implements ArticleRepository {
     }
 
     private void createNew(Article article) {
-        articleMapper.insert(article);
         for (Tag tag : article.getTags()) {
             if (!articleMapper.findTag(tag.getName())) {
                 articleMapper.insertTag(tag);
             }
             articleMapper.insertArticleTagRelation(article.getId(), tag.getId());
         }
+        articleMapper.insert(article);
     }
 
     @Override

src/test/java/io/spring/infrastructure/article/ArticleRepositoryTransactionTest.java

@@ -0,0 +1,46 @@
+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.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+@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() throws Exception {
+        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) {
+            assertThat(articleMapper.findTag("other"), is(false));
+        }
+    }
+
+}

src/test/java/io/spring/infrastructure/article/MyBatisArticleRepositoryTest.java

@@ -30,6 +30,7 @@ public class MyBatisArticleRepositoryTest {
 
     @Autowired
     private UserRepository userRepository;
+
     private User user;
     private Article article;