js/tests/js1_5/Array/regress-99120-01.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is JavaScript Engine testing utilities.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Mozilla Foundation.
  19  * Portions created by the Initial Developer are Copyright (C) 2005
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s): Phil Schwartau <pschwartau@meer.net>
  23  *                 Bob Clary <bob@bclary.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the MPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 var gTestfile = 'regress-99120-01.js';
  40 //-----------------------------------------------------------------------------
  41 var BUGNUMBER = 99120;
  42 var summary = 'sort() should not be O(N^2) on sorted data';
  43 var actual = '';
  44 var expect = '';
  45
  46 printBugNumber(BUGNUMBER);
  47 printStatus (summary);
  48
  49 var data = {X:[], Y:[]};
  50 for (var size = 5000; size <= 15000; size += 1000)
  51 {
  52   data.X.push(size);
  53   data.Y.push(testSort(size));
  54   gc();
  55 }
  56
  57 var order = BigO(data);
  58
  59 var msg = '';
  60 for (var p = 0; p < data.X.length; p++)
  61 {
  62   msg += '(' + data.X[p] + ', ' + data.Y[p] + '); ';
  63 }
  64 printStatus(msg);
  65 printStatus('Order: ' + order);
  66 reportCompare(true, order < 2 , 'BigO ' + order + ' < 2');
  67
  68 function testSort(size)
  69 {
  70   var arry = new Array(size);
  71   for (var i = 0; i < size; i++)
  72   {
  73     arry[i] = i;
  74   }
  75   var start = new Date();
  76   arry.sort(compareFn);
  77   var stop = new Date();
  78   return stop - start;
  79 }
  80
  81 function compareFn(a, b)
  82 {
  83   return a - b;
  84 }