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From scolebou...@apache.org
Subject cvs commit: jakarta-commons/collections/src/test/org/apache/commons/collections TestNodeCachingLinkedList.java TestAll.java
Date Mon, 18 Nov 2002 23:58:46 GMT
scolebourne    2002/11/18 15:58:46

  Modified:    collections/src/test/org/apache/commons/collections
                        TestAll.java
  Added:       collections/src/test/org/apache/commons/collections
                        TestNodeCachingLinkedList.java
  Log:
  Test Performance optimised LinkedList, from Jeff Varszegi
  
  Revision  Changes    Path
  1.37      +5 -4      jakarta-commons/collections/src/test/org/apache/commons/collections/TestAll.java
  
  Index: TestAll.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/TestAll.java,v
  retrieving revision 1.36
  retrieving revision 1.37
  diff -u -r1.36 -r1.37
  --- TestAll.java	15 Oct 2002 21:51:21 -0000	1.36
  +++ TestAll.java	18 Nov 2002 23:58:46 -0000	1.37
  @@ -97,6 +97,7 @@
           suite.addTest(TestHashBag.suite());
           suite.addTest(TestLRUMap.suite());
           suite.addTest(TestMultiHashMap.suite());
  +        suite.addTest(TestNodeCachingLinkedList.suite());
           suite.addTest(TestSequencedHashMap.suite());
           suite.addTest(TestStaticBucketMap.suite());
           suite.addTest(TestTreeBag.suite());
  
  
  
  1.1                  jakarta-commons/collections/src/test/org/apache/commons/collections/TestNodeCachingLinkedList.java
  
  Index: TestNodeCachingLinkedList.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/TestNodeCachingLinkedList.java,v
1.1 2002/11/18 23:58:46 scolebourne Exp $
   * $Revision: 1.1 $
   * $Date: 2002/11/18 23:58:46 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  package org.apache.commons.collections;
  
  import java.util.*;
  
  import junit.framework.Test;
  /**
   * Test class for NodeCachingLinkedList, a performance optimised LinkedList.
   * 
   * @author Jeff Varszegi
   */
  public class TestNodeCachingLinkedList extends TestList {
      protected NodeCachingLinkedList list = null;
  
      public TestNodeCachingLinkedList(String _testName) {
          super(_testName);
      }
  
      public List makeEmptyList() {
          return new NodeCachingLinkedList();
      }
  
      public void setUp() {
          list = (NodeCachingLinkedList)makeEmptyList();
      }
  
      public static Test suite() {
          return BulkTest.makeSuite(TestNodeCachingLinkedList.class);
      }
      
      public static void compareSpeed() {
          NodeCachingLinkedList ncll = new NodeCachingLinkedList();
          LinkedList ll = new LinkedList();
          
          Object o1 = new Object();
          Object o2 = new Object();
          
          int loopCount = 4000000;
          
          long startTime, endTime;
          
          System.out.println("Testing relative execution time of commonly-used methods...");
          
          startTime = System.currentTimeMillis();   
          for(int x = loopCount; x > 0; x--) {
              // unrolled a few times to minimize effect of loop
              ll.addFirst(o1);
              ll.addLast(o2);
              ll.removeFirst();
              ll.removeLast();
              ll.add(o1);
              ll.remove(0);
              //
              ll.addFirst(o1);
              ll.addLast(o2);
              ll.removeFirst();
              ll.removeLast();
              ll.add(o1);
              ll.remove(0);
              //
              ll.addFirst(o1);
              ll.addLast(o2);
              ll.removeFirst();
              ll.removeLast();
              ll.add(o1);
              ll.remove(0);
          }
          endTime = System.currentTimeMillis();   
          System.out.println("Time with LinkedList: " + (endTime - startTime) + " ms");
  
          startTime = System.currentTimeMillis();   
          for(int x = loopCount; x > 0; x--) {
              ncll.addFirst(o1);
              ncll.addLast(o2);
              ncll.removeFirst();
              ncll.removeLast();
              ncll.add(o1);
              ncll.remove(0);
              //
              ncll.addFirst(o1);
              ncll.addLast(o2);
              ncll.removeFirst();
              ncll.removeLast();
              ncll.add(o1);
              ncll.remove(0);
              //
              ncll.addFirst(o1);
              ncll.addLast(o2);
              ncll.removeFirst();
              ncll.removeLast();
              ncll.add(o1);
              ncll.remove(0);
          }
          endTime = System.currentTimeMillis();   
          System.out.println("Time with NodeCachingLinkedList: " + (endTime - startTime) +
" ms");
  
      }
      
  
      public static void main(String args[]) {
          String[] testCaseName = { TestNodeCachingLinkedList.class.getName()};
          junit.textui.TestRunner.main(testCaseName);
      }
  
  }
  
  

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