tests/mozilla/js1_5/Array/array-001.js

   1 /*
   2 * The contents of this file are subject to the Netscape Public
   3 * License Version 1.1 (the "License"); you may not use this file
   4 * except in compliance with the License. You may obtain a copy of
   5 * the License at http://www.mozilla.org/NPL/
   6 *
   7 * Software distributed under the License is distributed on an "AS
   8 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
   9 * implied. See the License for the specific language governing
  10 * rights and limitations under the License.
  11 *
  12 * The Original Code is mozilla.org code.
  13 *
  14 * The Initial Developer of the Original Code is Netscape
  15 * Communications Corporation.  Portions created by Netscape are
  16 * Copyright (C) 1998 Netscape Communications Corporation.
  17 * All Rights Reserved.
  18 *
  19 * Contributor(s): igor@icesoft.no, pschwartau@netscape.com
  20 * Date: 24 September 2001
  21 *
  22 * SUMMARY: Truncating arrays that have decimal property names.
  23 * From correspondence with Igor Bukanov <igor@icesoft.no>:
  24 */
  25 //-----------------------------------------------------------------------------
  26 var UBound = 0;
  27 var bug = '(none)';
  28 var summary = 'Truncating arrays that have decimal property names';
  29 var BIG_INDEX = 4294967290;
  30 var status = '';
  31 var statusitems = [];
  32 var actual = '';
  33 var actualvalues = [];
  34 var expect= '';
  35 var expectedvalues = [];
  36
  37
  38 var arr = Array(BIG_INDEX);
  39 arr[BIG_INDEX - 1] = 'a';
  40 arr[BIG_INDEX - 10000] = 'b';
  41 arr[BIG_INDEX - 0.5] = 'c';  // not an array index - but a valid property name
  42 // Truncate the array -
  43 arr.length = BIG_INDEX - 5000;
  44
  45
  46 // Enumerate its properties with for..in
  47 var s = '';
  48 for (var i in arr)
  49 {
  50   s += arr[i];
  51 }
  52
  53
  54 /*
  55  * We expect s == 'cb' or 'bc' (EcmaScript does not fix the order).
  56  * Note 'c' is included: for..in includes ALL enumerable properties,
  57  * not just array-index properties. The bug was: Rhino gave s == ''.
  58  */
  59 status = inSection(1);
  60 actual = sortThis(s);
  61 expect = 'bc';
  62 addThis();
  63
  64
  65
  66 //-----------------------------------------------------------------------------
  67 test();
  68 //-----------------------------------------------------------------------------
  69
  70
  71
  72 function sortThis(str)
  73 {
  74   var chars = str.split('');
  75   chars = chars.sort();
  76   return chars.join('');
  77 }
  78
  79
  80 function addThis()
  81 {
  82   statusitems[UBound] = status;
  83   actualvalues[UBound] = actual;
  84   expectedvalues[UBound] = expect;
  85   UBound++;
  86 }
  87
  88
  89 function test()
  90 {
  91   enterFunc ('test');
  92   printBugNumber (bug);
  93   printStatus (summary);
  94
  95   for (var i=0; i<UBound; i++)
  96   {
  97     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
  98   }
  99
 100   exitFunc ('test');
 101 }