tests/mozilla/js1_5/Regress/regress-152646.js

   1 /* ***** BEGIN LICENSE BLOCK *****
   2 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
   3 *
   4 * The contents of this file are subject to the Netscape Public License
   5 * Version 1.1 (the "License"); you may not use this file except in
   6 * compliance with the License. You may obtain a copy of the License at
   7 * http://www.mozilla.org/NPL/
   8 *
   9 * Software distributed under the License is distributed on an "AS IS" basis,
  10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11 * for the specific language governing rights and limitations under the
  12 * License.
  13 *
  14 * The Original Code is JavaScript Engine testing utilities.
  15 *
  16 * The Initial Developer of the Original Code is Netscape Communications Corp.
  17 * Portions created by the Initial Developer are Copyright (C) 2002
  18 * the Initial Developer. All Rights Reserved.
  19 *
  20 * Contributor(s): pschwartau@netscape.com, mstoltz@netscape.com
  21 *
  22 * Alternatively, the contents of this file may be used under the terms of
  23 * either the GNU General Public License Version 2 or later (the "GPL"), or
  24 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  25 * in which case the provisions of the GPL or the LGPL are applicable instead
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  31 * the provisions above, a recipient may use your version of this file under
  32 * the terms of any one of the NPL, the GPL or the LGPL.
  33 *
  34 * ***** END LICENSE BLOCK *****
  35 *
  36 *
  37 * Date:    08 July 2002
  38 * SUMMARY: Testing expressions with large numbers of parentheses
  39 * See http://bugzilla.mozilla.org/show_bug.cgi?id=152646
  40 *
  41 */
  42 //-----------------------------------------------------------------------------
  43 var UBound = 0;
  44 var bug = 152646;
  45 var summary = 'Testing expressions with large numbers of parentheses';
  46 var status = '';
  47 var statusitems = [];
  48 var actual = '';
  49 var actualvalues = [];
  50 var expect= '';
  51 var expectedvalues = [];
  52
  53
  54 /*
  55  * Just seeing that we don't crash when compiling this assignment -
  56  *
  57  * We will form an eval string to set the result-variable |actual|.
  58  * To get a feel for this, suppose N were 3. Then the eval string is
  59  * 'actual = (((0)));' The expected value for this after eval() is 0.
  60  */
  61 status = inSection(1);
  62
  63 var sLeft = '((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((';
  64 sLeft += sLeft;
  65 sLeft += sLeft;
  66 sLeft += sLeft;
  67 sLeft += sLeft;
  68 sLeft += sLeft;
  69
  70 var sRight = '))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
  71 sRight += sRight;
  72 sRight += sRight;
  73 sRight += sRight;
  74 sRight += sRight;
  75
  76 var sEval = 'actual = ' + sLeft + '0' + sRight;
  77 try
  78 {
  79   eval(sEval);
  80 }
  81 catch(e)
  82 {
  83   /*
  84    * An exception during this eval is OK, as the runtime can throw one
  85    * in response to too deep recursion. We haven't crashed; good!
  86    */
  87   actual = 0;
  88 }
  89 expect = 0;
  90 addThis();
  91
  92
  93
  94 //-----------------------------------------------------------------------------
  95 test();
  96 //-----------------------------------------------------------------------------
  97
  98
  99
 100 function addThis()
 101 {
 102   statusitems[UBound] = status;
 103   actualvalues[UBound] = actual;
 104   expectedvalues[UBound] = expect;
 105   UBound++;
 106 }
 107
 108
 109 function test()
 110 {
 111   enterFunc('test');
 112   printBugNumber(bug);
 113   printStatus(summary);
 114
 115   for (var i=0; i<UBound; i++)
 116   {
 117     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 118   }
 119
 120   exitFunc ('test');
 121 }