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1   /*
2    *    Copyright 2009-2022 the original author or authors.
3    *
4    *    Licensed under the Apache License, Version 2.0 (the "License");
5    *    you may not use this file except in compliance with the License.
6    *    You may obtain a copy of the License at
7    *
8    *       https://www.apache.org/licenses/LICENSE-2.0
9    *
10   *    Unless required by applicable law or agreed to in writing, software
11   *    distributed under the License is distributed on an "AS IS" BASIS,
12   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *    See the License for the specific language governing permissions and
14   *    limitations under the License.
15   */
16  package org.apache.ibatis.submitted.parent_childs;
17  
18  import java.io.Reader;
19  import java.util.List;
20  
21  import org.apache.ibatis.BaseDataTest;
22  import org.apache.ibatis.io.Resources;
23  import org.apache.ibatis.session.SqlSession;
24  import org.apache.ibatis.session.SqlSessionFactory;
25  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
26  import org.junit.jupiter.api.Assertions;
27  import org.junit.jupiter.api.BeforeAll;
28  import org.junit.jupiter.api.Test;
29  
30  class ParentChildTest {
31  
32    private static SqlSessionFactory sqlSessionFactory;
33  
34    @BeforeAll
35    static void setUp() throws Exception {
36      // create a SqlSessionFactory
37      try (
38          Reader reader = Resources.getResourceAsReader("org/apache/ibatis/submitted/parent_childs/mybatis-config.xml")) {
39        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
40      }
41  
42      // populate in-memory database
43      BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
44          "org/apache/ibatis/submitted/parent_childs/CreateDB.sql");
45    }
46  
47    @Test
48    void shouldGet2Parents() {
49      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
50        Mapper mapper = sqlSession.getMapper(Mapper.class);
51        List<Parent> parents = mapper.getParents();
52        Assertions.assertEquals(2, parents.size());
53        Parent firstParent = parents.get(0);
54        Assertions.assertEquals("Jose", firstParent.getName());
55        Assertions.assertEquals(2, firstParent.getChilds().size());
56        Parent secondParent = parents.get(1);
57        Assertions.assertEquals("Juan", secondParent.getName());
58        Assertions.assertEquals(0, secondParent.getChilds().size()); // note an empty list is inyected
59      }
60    }
61  
62    // issue #1848
63    @Test
64    void shouldGet2ParentsWithConstructor() {
65      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
66        Mapper mapper = sqlSession.getMapper(Mapper.class);
67        List<Parent> parents = mapper.getParentsWithConstructor();
68        Assertions.assertEquals(2, parents.size());
69        Parent firstParent = parents.get(0);
70        Assertions.assertEquals("Jose", firstParent.getName());
71        Assertions.assertEquals(2, firstParent.getChilds().size());
72        Parent secondParent = parents.get(1);
73        Assertions.assertEquals("Juan", secondParent.getName());
74        Assertions.assertEquals(0, secondParent.getChilds().size()); // note an empty list is inyected
75      }
76    }
77  
78  }