| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.drill.jdbc.test; |
| |
| import static org.hamcrest.CoreMatchers.equalTo; |
| import static org.hamcrest.CoreMatchers.nullValue; |
| import static org.junit.Assert.assertTrue; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import org.apache.drill.categories.JdbcTest; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.apache.drill.jdbc.JdbcTestBase; |
| import org.junit.experimental.categories.Category; |
| |
| import java.sql.Connection; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| |
| @Category(JdbcTest.class) |
| public class Drill2463GetNullsFailedWithAssertionsBugTest extends JdbcTestBase { |
| |
| private static Connection connection; |
| private static Statement statement; |
| |
| @BeforeClass |
| public static void setUpConnection() throws SQLException { |
| // (Note: Can't use JdbcTest's connect(...) because JdbcTest closes |
| // Connection--and other JDBC objects--on test method failure, but this test |
| // class uses some objects across methods.) |
| connection = connect(); |
| statement = connection.createStatement(); |
| } |
| |
| @AfterClass |
| public static void tearDownConnection() throws SQLException { |
| connection.close(); |
| } |
| |
| // Test primitive types vs. non-primitive types: |
| |
| @Test |
| public void testGetPrimitiveTypeNullAsOwnType() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS INTEGER ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getInt(...) for NULL", rs.getInt( 1 ), equalTo( 0 ) ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| @Test |
| public void testGetPrimitiveTypeNullAsObject() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS INTEGER ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getObject(...) for NULL", rs.getObject( 1 ), nullValue() ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| @Test |
| public void testGetNonprimitiveTypeNullAsOwnType() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS VARCHAR ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getString(...) for NULL", rs.getString( 1 ), nullValue() ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| // Test a few specifics |
| |
| @Test |
| public void testGetBooleanNullAsOwnType() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS BOOLEAN ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getBoolean(...) for NULL", rs.getBoolean( 1 ), equalTo( false ) ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| @Test |
| public void testGetBooleanNullAsObject() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS BOOLEAN ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getObject(...) for NULL", rs.getObject( 1 ), nullValue() ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| @Test |
| public void testGetIntegerNullAsOwnType() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS INTEGER ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getInt(...) for NULL", rs.getInt( 1 ), equalTo( 0 ) ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| |
| @Test |
| public void testGetIntegerNullAsObject() throws Exception { |
| final ResultSet rs = statement.executeQuery( |
| "SELECT CAST( NULL AS INTEGER ) FROM INFORMATION_SCHEMA.CATALOGS" ); |
| assertTrue( rs.next() ); |
| assertThat( "getObject(...) for NULL", rs.getObject( 1 ), nullValue() ); |
| assertThat( "wasNull", rs.wasNull(), equalTo( true ) ); |
| } |
| } |