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

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  23  *   igor@icesoft.no, pschwartau@netscape.com
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  38
  39 /*
  40  * Date: 24 September 2001
  41  *
  42  * SUMMARY: Truncating arrays that have decimal property names.
  43  * From correspondence with Igor Bukanov <igor@icesoft.no>:
  44  */
  45 //-----------------------------------------------------------------------------
  46 var gTestfile = 'array-001.js';
  47 var UBound = 0;
  48 var BUGNUMBER = '(none)';
  49 var summary = 'Truncating arrays that have decimal property names';
  50 var BIG_INDEX = 4294967290;
  51 var status = '';
  52 var statusitems = [];
  53 var actual = '';
  54 var actualvalues = [];
  55 var expect= '';
  56 var expectedvalues = [];
  57
  58
  59 var arr = Array(BIG_INDEX);
  60 arr[BIG_INDEX - 1] = 'a';
  61 arr[BIG_INDEX - 10000] = 'b';
  62 arr[BIG_INDEX - 0.5] = 'c';  // not an array index - but a valid property name
  63 // Truncate the array -
  64 arr.length = BIG_INDEX - 5000;
  65
  66
  67 // Enumerate its properties with for..in
  68 var s = '';
  69 for (var i in arr)
  70 {
  71   s += arr[i];
  72 }
  73
  74
  75 /*
  76  * We expect s == 'cb' or 'bc' (EcmaScript does not fix the order).
  77  * Note 'c' is included: for..in includes ALL enumerable properties,
  78  * not just array-index properties. The bug was: Rhino gave s == ''.
  79  */
  80 status = inSection(1);
  81 actual = sortThis(s);
  82 expect = 'bc';
  83 addThis();
  84
  85
  86
  87 //-----------------------------------------------------------------------------
  88 test();
  89 //-----------------------------------------------------------------------------
  90
  91
  92
  93 function sortThis(str)
  94 {
  95   var chars = str.split('');
  96   chars = chars.sort();
  97   return chars.join('');
  98 }
  99
 100
 101 function addThis()
 102 {
 103   statusitems[UBound] = status;
 104   actualvalues[UBound] = actual;
 105   expectedvalues[UBound] = expect;
 106   UBound++;
 107 }
 108
 109
 110 function test()
 111 {
 112   enterFunc ('test');
 113   printBugNumber(BUGNUMBER);
 114   printStatus (summary);
 115
 116   for (var i=0; i<UBound; i++)
 117   {
 118     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 119   }
 120
 121   exitFunc ('test');
 122 }