Java tutorial
/* * Copyright 2002-2013 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 test; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.sql.Types; import java.util.List; import junit.framework.TestCase; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.springframework.jdbc.datasource.SingleConnectionDataSource; import org.springframework.jdbc.support.SQLStateSQLExceptionTranslator; import org.springframework.tests.sample.beans.TestBean; import static org.mockito.BDDMockito.*; /** * @author Juergen Hoeller * @since 02.08.2004 */ public class RowMapperTests extends TestCase { private Connection connection; private Statement statement; private PreparedStatement preparedStatement; private ResultSet resultSet; private JdbcTemplate template; private List<TestBean> result; @Override @Before public void setUp() throws SQLException { connection = mock(Connection.class); statement = mock(Statement.class); preparedStatement = mock(PreparedStatement.class); resultSet = mock(ResultSet.class); given(connection.createStatement()).willReturn(statement); given(connection.prepareStatement(anyString())).willReturn(preparedStatement); given(statement.executeQuery(anyString())).willReturn(resultSet); given(preparedStatement.executeQuery()).willReturn(resultSet); given(resultSet.next()).willReturn(true, true, false); given(resultSet.getString(1)).willReturn("tb1", "tb2"); given(resultSet.getInt(2)).willReturn(1, 2); template = new JdbcTemplate(); template.setDataSource(new SingleConnectionDataSource(connection, false)); template.setExceptionTranslator(new SQLStateSQLExceptionTranslator()); template.afterPropertiesSet(); } @After public void verifyClosed() throws Exception { verify(resultSet).close(); verify(connection).close(); } @After public void verifyResults() { assertTrue(result != null); assertEquals(2, result.size()); assertEquals("tb1", result.get(0).getName()); assertEquals("tb2", result.get(1).getName()); assertEquals(1, result.get(0).getAge()); assertEquals(2, result.get(1).getAge()); } @Test public void testStaticQueryWithRowMapper() throws SQLException { result = template.query("some SQL", new TestRowMapper()); verify(statement).close(); } @Test public void testPreparedStatementCreatorWithRowMapper() throws SQLException { result = template.query(new PreparedStatementCreator() { @Override public PreparedStatement createPreparedStatement(Connection con) throws SQLException { return preparedStatement; } }, new TestRowMapper()); verify(preparedStatement).close(); } @Test public void testPreparedStatementSetterWithRowMapper() throws SQLException { result = template.query("some SQL", new PreparedStatementSetter() { @Override public void setValues(PreparedStatement ps) throws SQLException { ps.setString(1, "test"); } }, new TestRowMapper()); verify(preparedStatement).setString(1, "test"); verify(preparedStatement).close(); } @Test public void testQueryWithArgsAndRowMapper() throws SQLException { result = template.query("some SQL", new Object[] { "test1", "test2" }, new TestRowMapper()); preparedStatement.setString(1, "test1"); preparedStatement.setString(2, "test2"); preparedStatement.close(); } @Test public void testQueryWithArgsAndTypesAndRowMapper() throws SQLException { result = template.query("some SQL", new Object[] { "test1", "test2" }, new int[] { Types.VARCHAR, Types.VARCHAR }, new TestRowMapper()); verify(preparedStatement).setString(1, "test1"); verify(preparedStatement).setString(2, "test2"); verify(preparedStatement).close(); } private static class TestRowMapper implements RowMapper<TestBean> { @Override public TestBean mapRow(ResultSet rs, int rowNum) throws SQLException { return new TestBean(rs.getString(1), rs.getInt(2)); } } }