/*
    *    Copyright 2009-2021 the original author or authors.
    *
    *    Licensed under the Apache License, Version 2.0 (the "License");
    *    you may not use this file except in compliance with the License.
    *    You may obtain a copy of the License at
    *
    *       http://www.apache.org/licenses/LICENSE-2.0
    *
   *    Unless required by applicable law or agreed to in writing, software
   *    distributed under the License is distributed on an "AS IS" BASIS,
   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *    See the License for the specific language governing permissions and
   *    limitations under the License.
   */
  package org.apache.ibatis.submitted.parent_reference_3level;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.io.Reader;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.io.Resources;
  import org.apache.ibatis.session.SqlSession;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  class BlogTest {
  
    protected SqlSessionFactory sqlSessionFactory;
  
    String getConfigPath() {
      return "org/apache/ibatis/submitted/parent_reference_3level/mybatis-config.xml";
    }
  
    @BeforeEach
    void setUp() throws Exception {
      try (Reader reader = Resources.getResourceAsReader(getConfigPath())) {
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
      }
  
      BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
          "org/apache/ibatis/submitted/parent_reference_3level/CreateDB.sql");
    }
  
    @Test
    void testSelectBlogWithPosts() {
      try (SqlSession session = sqlSessionFactory.openSession()) {
        Mapper mapper = session.getMapper(Mapper.class);
        Blog result = mapper.selectBlogByPrimaryKey(1);
        assertNotNull(result);
        assertEquals("Blog with posts", result.getTitle());
        Assertions.assertEquals(2, result.getPosts().size());
        Post firstPost = result.getPosts().get(0);
        Assertions.assertEquals(1, firstPost.getBlog().getId());
        Assertions.assertEquals(2, firstPost.getComments().size());
        Post secondPost = result.getPosts().get(1);
        Assertions.assertEquals(1, secondPost.getComments().size());
        Assertions.assertEquals(2, secondPost.getComments().get(0).getPost().getId());
      }
    }
  
    @Test
    void testSelectBlogWithoutPosts() {
      try (SqlSession session = sqlSessionFactory.openSession()) {
        Mapper mapper = session.getMapper(Mapper.class);
        Blog result = mapper.selectBlogByPrimaryKey(2);
        assertNotNull(result);
        assertEquals("Blog without posts", result.getTitle());
        Assertions.assertEquals(0, result.getPosts().size());
      }
    }
  
    @Test
    void testSelectBlogWithPostsColumnPrefix() {
      try (SqlSession session = sqlSessionFactory.openSession()) {
        Mapper mapper = session.getMapper(Mapper.class);
        Blog result = mapper.selectBlogByPrimaryKeyColumnPrefix(1);
        assertNotNull(result);
        assertEquals("Blog with posts", result.getTitle());
        Assertions.assertEquals(2, result.getPosts().size());
        Post firstPost = result.getPosts().get(0);
        Assertions.assertEquals(1, firstPost.getBlog().getId());
        Assertions.assertEquals(2, firstPost.getComments().size());
        Post secondPost = result.getPosts().get(1);
        Assertions.assertEquals(1, secondPost.getComments().size());
        Assertions.assertEquals(2, secondPost.getComments().get(0).getPost().getId());
      }
    }
  
    @Test
    void testSelectBlogWithoutPostsColumnPrefix() {
      try (SqlSession session = sqlSessionFactory.openSession()) {
        Mapper mapper = session.getMapper(Mapper.class);
        Blog result = mapper.selectBlogByPrimaryKeyColumnPrefix(2);
        assertNotNull(result);
       assertEquals("Blog without posts", result.getTitle());
       Assertions.assertEquals(0, result.getPosts().size());
     }
   }
 }