tests/mozilla/js1_2/regexp/regress-9141.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. All
  17 * Rights Reserved.
  18 *
  19 * Contributor(s):
  20 */
  21
  22 /**
  23  *  File Name:          regress-9141.js
  24  *  Reference:          "http://bugzilla.mozilla.org/show_bug.cgi?id=9141";
  25  *  Description:
  26  *  From waldemar@netscape.com:
  27  *
  28  * The following page crashes the system:
  29  *
  30  * <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
  31  * "http://www.w3.org/TR/REC-html40/loose.dtd">
  32  * <HTML>
  33  * <HEAD>
  34  * </HEAD>
  35  * <BODY>
  36  * <SCRIPT type="text/javascript">
  37  * var s = "x";
  38  *  for (var i = 0; i != 13; i++) s += s;
  39  * var a = /(?:xx|x)*[slash](s);
  40  * var b = /(xx|x)*[slash](s);
  41  * document.write("Results = " + a.length + "," + b.length);
  42  * </SCRIPT>
  43  * </BODY>
  44  */
  45
  46     var SECTION = "js1_2";       // provide a document reference (ie, ECMA section)
  47     var VERSION = "ECMA_2"; // Version of JavaScript or ECMA
  48     var TITLE   = "Regression test for bugzilla # 9141";       // Provide ECMA section title or a description
  49     var BUGNUMBER = "http://bugzilla.mozilla.org/show_bug.cgi?id=9141";     // Provide URL to bugsplat or bugzilla report
  50
  51     startTest();               // leave this alone
  52
  53     /*
  54      * Calls to AddTestCase here. AddTestCase is a function that is defined
  55      * in shell.js and takes three arguments:
  56      * - a string representation of what is being tested
  57      * - the expected result
  58      * - the actual result
  59      *
  60      * For example, a test might look like this:
  61      *
  62      * var zip = /[\d]{5}$/;
  63      *
  64      * AddTestCase(
  65      * "zip = /[\d]{5}$/; \"PO Box 12345 Boston, MA 02134\".match(zip)",   // description of the test
  66      *  "02134",                                                           // expected result
  67      *  "PO Box 12345 Boston, MA 02134".match(zip) );                      // actual result
  68      *
  69      */
  70
  71    var s = "x";
  72    for (var i = 0; i != 13; i++) s += s;
  73    var a = /(?:xx|x)*/(s);
  74    var b = /(xx|x)*/(s);
  75
  76     AddTestCase( "var s = 'x'; for (var i = 0; i != 13; i++) s += s; " +
  77                 "a = /(?:xx|x)*/(s); a.length",
  78                 1,
  79                 a.length );
  80
  81     AddTestCase( "var b = /(xx|x)*/(s); b.length",
  82                  2,
  83                  b.length );
  84
  85     test();       // leave this alone.  this executes the test cases and
  86                   // displays results.