tests/mozilla/js1_5/Array/regress-108440.js

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  14 * The Original Code is JavaScript Engine testing utilities.
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  16 * The Initial Developer of the Original Code is Netscape Communications Corp.
  17 * Portions created by the Initial Developer are Copyright (C) 2001
  18 * the Initial Developer. All Rights Reserved.
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  20 * Contributor(s): pschwartau@netscape.com, Liorean@user.bip.net
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  35 *
  36 *
  37 * Date: 30 October 2001
  38 * SUMMARY: Regression test for bug 108440
  39 * See http://bugzilla.mozilla.org/show_bug.cgi?id=108440
  40 *
  41 * We shouldn't crash trying to add an array as an element of itself (!)
  42 *
  43 * Brendan: "...it appears that Array.prototype.toString is unsafe,
  44 * and what's more, ECMA-262 Edition 3 has no helpful words about
  45 * avoiding recursive death on a cycle."
  46 */
  47 //-----------------------------------------------------------------------------
  48 var bug = 108440;
  49 var summary = "Shouldn't crash trying to add an array as an element of itself";
  50 var self = this;
  51 var temp = '';
  52
  53 printBugNumber(bug);
  54 printStatus(summary);
  55
  56 /*
  57  * Explicit test:
  58  */
  59 var a=[];
  60 temp = (a[a.length]=a);
  61
  62 /*
  63  * Implicit test (one of the properties of |self| is |a|)
  64  */
  65 a=[];
  66 for(var prop in self)
  67 {
  68   temp = prop;
  69   temp = (a[a.length] = self[prop]);
  70 }
  71
  72 /*
  73  * Stressful explicit test
  74  */
  75 a=[];
  76 for (var i=0; i<10; i++)
  77 {
  78   a[a.length] = a;
  79 }
  80
  81 /*
  82  * Test toString()
  83  */
  84 a=[];
  85 for (var i=0; i<10; i++)
  86 {
  87   a[a.length] = a.toString();
  88 }
  89
  90 /*
  91  * Test toSource() - but Rhino doesn't have this, so try...catch it
  92  */
  93 a=[];
  94 try
  95 {
  96   for (var i=0; i<10; i++)
  97   {
  98     a[a.length] = a.toSource();
  99   }
 100 }
 101 catch(e)
 102 {
 103 }