js/tests/js1_5/extensions/regress-435345-01.js

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  15  * The Original Code is JavaScript Engine testing utilities.
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  17  * The Initial Developer of the Original Code is
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  22  * Contributor(s): Cyrus Omar
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  37
  38 var gTestfile = 'regress-435345-01.js';
  39 //-----------------------------------------------------------------------------
  40 var BUGNUMBER = 435345;
  41 var summary = 'Watch the length property of arrays';
  42 var actual = '';
  43 var expect = '';
  44
  45 // see http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Object:watch
  46
  47 //-----------------------------------------------------------------------------
  48 test();
  49 //-----------------------------------------------------------------------------
  50
  51 function test()
  52 {
  53   enterFunc ('test');
  54   printBugNumber(BUGNUMBER);
  55   printStatus (summary);
  56
  57   var arr;
  58
  59   try
  60   {
  61     expect = 'watcher: propname=length, oldval=0, newval=1; ';
  62     actual = '';
  63     arr = [];
  64     arr.watch('length', watcher);
  65     arr[0] = '0';
  66   }
  67   catch(ex)
  68   {
  69     actual = ex + '';
  70   }
  71   reportCompare(expect, actual, summary + ': 1');
  72
  73   try
  74   {
  75     expect = 'watcher: propname=length, oldval=1, newval=2; ' +
  76       'watcher: propname=length, oldval=2, newval=2; ';
  77     actual = '';
  78     arr.push(5);
  79   }
  80   catch(ex)
  81   {
  82     actual = ex + '';
  83   }
  84   reportCompare(expect, actual, summary + ': 2');
  85
  86   try
  87   {
  88     expect = 'watcher: propname=length, oldval=2, newval=1; ';
  89     actual = '';
  90     arr.pop();
  91   }
  92   catch(ex)
  93   {
  94     actual = ex + '';
  95   }
  96   reportCompare(expect, actual, summary + ': 3');
  97
  98   try
  99   {
 100     expect = 'watcher: propname=length, oldval=1, newval=2; ';
 101     actual = '';
 102     arr.length++;
 103   }
 104   catch(ex)
 105   {
 106     actual = ex + '';
 107   }
 108   reportCompare(expect, actual, summary + ': 4');
 109
 110   try
 111   {
 112     expect = 'watcher: propname=length, oldval=2, newval=5; ';
 113     actual = '';
 114     arr.length = 5;
 115   }
 116   catch(ex)
 117   {
 118     actual = ex + '';
 119   }
 120   reportCompare(expect, actual, summary + ': 5');
 121
 122   exitFunc ('test');
 123 }
 124
 125 function watcher(propname, oldval, newval)
 126 {
 127   actual += 'watcher: propname=' + propname + ', oldval=' + oldval +
 128     ', newval=' + newval + '; ';
 129
 130   return newval;
 131 }
 132