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1   /*
2    *    Copyright 2009-2023 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.no_result_type_map;
17  
18  import static org.junit.jupiter.api.Assertions.assertEquals;
19  import static org.junit.jupiter.api.Assertions.assertThrows;
20  
21  import java.io.Reader;
22  import java.util.List;
23  
24  import org.apache.ibatis.BaseDataTest;
25  import org.apache.ibatis.exceptions.PersistenceException;
26  import org.apache.ibatis.executor.ExecutorException;
27  import org.apache.ibatis.io.Resources;
28  import org.apache.ibatis.session.SqlSession;
29  import org.apache.ibatis.session.SqlSessionFactory;
30  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
31  import org.junit.jupiter.api.Assertions;
32  import org.junit.jupiter.api.BeforeAll;
33  import org.junit.jupiter.api.Test;
34  
35  class NoResultTypeMapTest {
36  
37    private static SqlSessionFactory sqlSessionFactory;
38  
39    @BeforeAll
40    static void setUp() throws Exception {
41      // create a SqlSessionFactory
42      try (Reader reader = Resources
43          .getResourceAsReader("org/apache/ibatis/submitted/no_result_type_map/mybatis-config.xml")) {
44        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
45        sqlSessionFactory.getConfiguration().addMapper(Mapper.class);
46      }
47  
48      // populate in-memory database
49      BaseDataTest.runScript(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(),
50          "org/apache/ibatis/submitted/no_result_type_map/CreateDB.sql");
51    }
52  
53    @Test
54    void shouldGetAUser() {
55      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
56        Mapper mapper = sqlSession.getMapper(Mapper.class);
57        User user = mapper.getUser(1);
58        Assertions.assertEquals("User1", user.getName());
59      }
60    }
61  
62    @Test
63    void shouldGetAllUsers() {
64      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
65        Mapper mapper = sqlSession.getMapper(Mapper.class);
66        List<User> users = mapper.getAllUsers();
67        Assertions.assertEquals(3, users.size());
68      }
69    }
70  
71    @Test
72    void shouldResolveInheritedReturnType() {
73      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
74        Mapper mapper = sqlSession.getMapper(Mapper.class);
75        List<User> users = mapper.getAllUsersInParent();
76        Assertions.assertEquals(3, users.size());
77      }
78    }
79  
80    @Test
81    void shouldFailIfNoMatchingMethod() {
82      try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
83        PersistenceException ex = assertThrows(PersistenceException.class,
84            () -> sqlSession.selectList("org.apache.ibatis.submitted.no_result_type_map.Mapper.noMatchingMethod"));
85        ExecutorException cause = (ExecutorException) ex.getCause();
86        assertEquals(
87            "A query was run and no Result Maps were found for the Mapped Statement "
88                + "'org.apache.ibatis.submitted.no_result_type_map.Mapper.noMatchingMethod'. "
89                + "'resultType' or 'resultMap' must be specified when there is no corresponding method.",
90            cause.getMessage());
91      }
92    }
93  
94  }