optional.OptionalTest.java Source code

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Here is the source code for optional.OptionalTest.java

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/**
 *    Copyright 2009-2016 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 optional;

import static org.junit.Assert.*;

import java.io.Reader;
import java.sql.Connection;
import java.time.LocalDate;
import java.util.List;
import java.util.Optional;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.jdbc.ScriptRunner;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.BeforeClass;
import org.junit.Test;

public class OptionalTest {
    private static SqlSessionFactory sqlSessionFactory;

    @BeforeClass
    public static void setUp() throws Exception {
        // create an SqlSessionFactory
        Reader reader = Resources.getResourceAsReader("optional/mybatis-config.xml");
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
        reader.close();

        // populate in-memory database
        SqlSession session = sqlSessionFactory.openSession();
        Connection conn = session.getConnection();
        reader = Resources.getResourceAsReader("optional/CreateDB.sql");
        ScriptRunner runner = new ScriptRunner(conn);
        runner.setLogWriter(null);
        runner.runScript(reader);
        reader.close();
        session.close();
    }

    @Test
    public void shouldSetOptionalToProperty() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            User user = mapper.getBeanWithOptionalProperties(1);
            assertEquals("User1", user.getName().get());
            assertNotNull(user.getDob().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldHandleGenericOptional() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<GenericUser<String, LocalDate>> user = mapper.getGenericUserAutoMapping(1);
            assertEquals("User1", user.get().getName().get());
            assertNotNull(user.get().getDob().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldSetEmptyToPropertyIfColumnIsNull() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            User user = mapper.getBeanWithOptionalProperties(2);
            assertFalse(user.getName().isPresent());
            assertFalse(user.getDob().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldOptionalConstructorArgWork() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            UserWithConstructor user = mapper.getUserWithConstructor(1);
            assertEquals("User1", user.getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldOptionalConstructorArgWithoutMappingWork() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            UserWithConstructor user = mapper.getUserWithConstructorWithoutMapping(1);
            assertEquals("User1", user.getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldGetUserWithConstructorXml() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            UserWithConstructor user = mapper.getUserWithConstructorXml(1);
            assertEquals("User1", user.getName().get());
            assertTrue(user.getDob().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldGetUserWithConstructorXml2() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            UserWithConstructor user = mapper.getUserWithConstructorXml2(1);
            assertEquals("User1", user.getName().get());
            assertTrue(user.getDob().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnOptionalSimpleType() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<String> name = mapper.getUserName(1);
            assertEquals("User1", name.get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnEmptyWhenTheColumnIsNull() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<String> name = mapper.getUserName(2);
            assertFalse(name.isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnEmptyWhenThereIsNoMatchingRow_SimpleType() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<String> name = mapper.getUserName(9999);
            assertFalse(name.isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnOptionalBean_Anno() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getOptionalUser(1);
            assertEquals("User1", user.get().getName().get());
            assertTrue(user.get().getDob().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnOptionalBean_Xml() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getOptionalUserXml(1);
            assertEquals("User1", user.get().getName().get());
            assertTrue(user.get().getDob().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnOptionalBeans() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            List<Optional<User>> users = mapper.getOptionalUsers();
            assertEquals(3, users.size());
            assertEquals("User1", users.get(0).get().getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnEmptyWhenThereIsNoMatchingRow_Bean() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getOptionalUser(9999);
            assertFalse(user.isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnEmptyWhenAllColumnsAreNull() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getOptionalNameAndDob(2);
            assertFalse(user.isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithOptionalAssociation_NestedQuery() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalAssociationAnno(1);
            assertEquals("Pet1", user.get().getPet().get().getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithEmptyAssociation_NestedQuery() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalAssociationAnno(2);
            assertTrue(user.isPresent());
            assertFalse(user.get().getPet().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithOptionalAssociation_NestedResult() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalAssociationXml(1);
            assertEquals("Pet1", user.get().getPet().get().getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithOptionalInlineXml_NestedResult() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalInlineXml(1);
            assertEquals("Pet1", user.get().getPet().get().getName().get());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithEmptyAssociation_NestedResult() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalAssociationXml(2);
            assertFalse(user.get().getPet().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldReturnBeanWithOptionalCollection_NestedResult() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            Optional<User> user = mapper.getBeanWithOptionalCollectionXml(3);
            assertTrue(user.get().getPets().get(0).get().getName().isPresent());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void shouldInsertAUser() {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        try {
            Mapper mapper = sqlSession.getMapper(Mapper.class);
            User user = new User();
            user.setId(100);
            user.setName(Optional.of("User100"));
            mapper.insertUser(user);

            User result = mapper.getBeanWithOptionalProperties(100);
            assertEquals("User100", result.getName().get());
        } finally {
            sqlSession.close();
        }
    }
}