| /* |
| * 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.directory.server.core.partition.impl.btree.jdbm; |
| |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.After; |
| |
| import java.util.Comparator; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import jdbm.RecordManager; |
| import jdbm.btree.BTree; |
| import jdbm.helper.IntegerSerializer; |
| import jdbm.helper.IntegerComparator; |
| import jdbm.helper.TupleBrowser; |
| import jdbm.helper.Tuple; |
| import jdbm.recman.BaseRecordManager; |
| import static junit.framework.Assert.assertTrue; |
| import static junit.framework.Assert.assertEquals; |
| |
| |
| /** |
| * A test case to confirm the JDBM browser issue. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $$Rev$$ |
| */ |
| public class JdbmBrowserBugTest |
| { |
| Comparator<Integer> comparator; |
| BTree bt; |
| private static final String TEST_OUTPUT_PATH = "test.output.path"; |
| private static final Logger LOG = LoggerFactory.getLogger( JdbmBrowserBugTest.class.getSimpleName() ); |
| private File dbFile = null; |
| private RecordManager recman = null; |
| |
| @Before |
| public void createTree() throws Exception |
| { |
| comparator = new Comparator<Integer>() |
| { |
| public int compare( Integer i1, Integer i2 ) |
| { |
| return i1.compareTo( i2 ); |
| } |
| }; |
| |
| File tmpDir = null; |
| |
| if ( System.getProperty( TEST_OUTPUT_PATH, null ) != null ) |
| { |
| tmpDir = new File( System.getProperty( TEST_OUTPUT_PATH ) ); |
| } |
| |
| dbFile = File.createTempFile( getClass().getSimpleName(), "db", tmpDir ); |
| recman = new BaseRecordManager( dbFile.getAbsolutePath() ); |
| bt = new BTree<Integer, Integer>( recman, new IntegerComparator(), new IntegerSerializer(), new IntegerSerializer() ); |
| LOG.debug( "created new BTree" ); |
| } |
| |
| |
| @After |
| public void cleanup() throws IOException |
| { |
| recman.close(); |
| recman = null; |
| bt = null; |
| |
| if ( dbFile.exists() ) |
| { |
| String fileToDelete = dbFile.getAbsolutePath(); |
| new File( fileToDelete ).delete(); |
| new File( fileToDelete + ".db" ).delete(); |
| new File( fileToDelete + ".lg" ).delete(); |
| |
| dbFile.delete(); |
| } |
| |
| dbFile = null; |
| } |
| |
| |
| @Test |
| public void testDirectionChange() throws Exception |
| { |
| bt.insert( 3, 3, true ); |
| bt.insert( 5, 3, true ); |
| bt.insert( 7, 3, true ); |
| bt.insert( 12, 3, true ); |
| bt.insert( 0, 3, true ); |
| bt.insert( 30, 3, true ); |
| bt.insert( 25, 3, true ); |
| |
| Tuple tuple = new Tuple(); |
| TupleBrowser browser = bt.browse( null ); |
| assertTrue( browser.getPrevious( tuple ) ); |
| //noinspection AssertEqualsBetweenInconvertibleTypes |
| assertEquals( 30, tuple.getKey() ); |
| |
| assertTrue( browser.getPrevious( tuple ) ); |
| //noinspection AssertEqualsBetweenInconvertibleTypes |
| assertEquals( 25, tuple.getKey() ); |
| |
| assertTrue( browser.getNext( tuple ) ); |
| //noinspection AssertEqualsBetweenInconvertibleTypes |
| assertEquals( "If this works the jdbm bug is gone: will start to return " + |
| "30 instead as expected for correct operation", 25, tuple.getKey() ); |
| } |
| } |