regress-9141.js [plain text]

/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation.  Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s): 
*/

/**
 *  File Name:          regress-9141.js
 *  Reference:          "http://bugzilla.mozilla.org/show_bug.cgi?id=9141";
 *  Description:
 *  From waldemar@netscape.com:
 *
 * The following page crashes the system:
 *
 * <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
 * "http://www.w3.org/TR/REC-html40/loose.dtd">
 * <HTML>
 * <HEAD>
 * </HEAD>
 * <BODY>
 * <SCRIPT type="text/javascript">
 * var s = "x";
 *  for (var i = 0; i != 13; i++) s += s;
 * var a = /(?:xx|x)*[slash](s);
 * var b = /(xx|x)*[slash](s);
 * document.write("Results = " + a.length + "," + b.length);
 * </SCRIPT>
 * </BODY>
 */

    var SECTION = "js1_2";       // provide a document reference (ie, ECMA section)
    var VERSION = "ECMA_2"; // Version of JavaScript or ECMA
    var TITLE   = "Regression test for bugzilla # 9141";       // Provide ECMA section title or a description
    var BUGNUMBER = "http://bugzilla.mozilla.org/show_bug.cgi?id=9141";     // Provide URL to bugsplat or bugzilla report

    startTest();               // leave this alone

    /*
     * Calls to AddTestCase here. AddTestCase is a function that is defined
     * in shell.js and takes three arguments:
     * - a string representation of what is being tested
     * - the expected result
     * - the actual result
     *
     * For example, a test might look like this:
     *
     * var zip = /[\d]{5}$/;
     *
     * AddTestCase(
     * "zip = /[\d]{5}$/; \"PO Box 12345 Boston, MA 02134\".match(zip)",   // description of the test
     *  "02134",                                                           // expected result
     *  "PO Box 12345 Boston, MA 02134".match(zip) );                      // actual result
     *
     */

   var s = "x";
   for (var i = 0; i != 13; i++) s += s;
   var a = /(?:xx|x)*/(s);
   var b = /(xx|x)*/(s);

    AddTestCase( "var s = 'x'; for (var i = 0; i != 13; i++) s += s; " +
                "a = /(?:xx|x)*/(s); a.length",
                1,
                a.length );

    AddTestCase( "var b = /(xx|x)*/(s); b.length",
                 2,
                 b.length );

    test();       // leave this alone.  this executes the test cases and
                  // displays results.