tor-browser

The Tor Browser
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regress-57631.js (3102B)

      1 /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 /*
      7 * Date: 26 November 2000
      8 *
      9 *
     10 * SUMMARY:  This test arose from Bugzilla bug 57631:
     11 * "RegExp with invalid pattern or invalid flag causes segfault"
     12 *
     13 * Either error should throw an exception of type SyntaxError,
     14 * and we check to see that it does...
     15 */
     16 //-----------------------------------------------------------------------------
     17 var BUGNUMBER = '57631';
     18 var summary = 'Testing new RegExp(pattern,flag) with illegal pattern or flag';
     19 var statprefix = 'Testing for error creating illegal RegExp object on pattern ';
     20 var statsuffix =  'and flag ';
     21 var cnSUCCESS = 'SyntaxError';
     22 var cnFAILURE = 'not a SyntaxError';
     23 var singlequote = "'";
     24 var i = -1; var j = -1; var s = ''; var f = '';
     25 var obj = {};
     26 var status = ''; var actual = ''; var expect = ''; var msg = '';
     27 var legalpatterns = new Array(); var illegalpatterns = new Array();
     28 var legalflags = new Array();  var illegalflags = new Array();
     29 
     30 
     31 // valid regular expressions to try -
     32 legalpatterns[0] = '';
     33 legalpatterns[1] = 'abc';
     34 legalpatterns[2] = '(.*)(3-1)\s\w';
     35 legalpatterns[3] = '(.*)(...)\\s\\w';
     36 legalpatterns[4] = '[^A-Za-z0-9_]';
     37 legalpatterns[5] = '[^\f\n\r\t\v](123.5)([4 - 8]$)';
     38 
     39 // invalid regular expressions to try -
     40 illegalpatterns[0] = '(?)';
     41 illegalpatterns[1] = '(a';
     42 illegalpatterns[2] = '( ]';
     43 //illegalpatterns[3] = '\d{1,s}';
     44 
     45 // valid flags to try -
     46 legalflags[0] = 'i';
     47 legalflags[1] = 'g';
     48 legalflags[2] = 'm';
     49 legalflags[3] = undefined;
     50 
     51 // invalid flags to try -
     52 illegalflags[0] = 'a';
     53 illegalflags[1] = 123;
     54 illegalflags[2] = new RegExp();
     55 
     56 
     57 
     58 //-------------------------------------------------------------------------------------------------
     59 test();
     60 //-------------------------------------------------------------------------------------------------
     61 
     62 
     63 function test()
     64 {
     65  printBugNumber(BUGNUMBER);
     66  printStatus (summary);
     67 
     68  testIllegalRegExps(legalpatterns, illegalflags);
     69  testIllegalRegExps(illegalpatterns, legalflags);
     70  testIllegalRegExps(illegalpatterns, illegalflags);
     71 }
     72 
     73 
     74 // This function will only be called where all the patterns are illegal, or all the flags
     75 function testIllegalRegExps(patterns, flags)
     76 {
     77  for (i in patterns)
     78  {
     79    s = patterns[i];
     80 
     81    for (j in flags)
     82    {
     83      f = flags[j];
     84      status = getStatus(s, f);
     85      actual = cnFAILURE;
     86      expect = cnSUCCESS;
     87 
     88      try
     89      {
     90 // This should cause an exception if either s or f is illegal -        
     91 eval('obj = new RegExp(s, f);'); 
     92      } 
     93      catch(e)
     94      {
     95 // We expect to get a SyntaxError - test for this:
     96 if (e instanceof SyntaxError)
     97   actual = cnSUCCESS;
     98      }
     99       
    100      reportCompare(expect, actual, status);
    101    }
    102  }
    103 }
    104 
    105 
    106 function getStatus(regexp, flag)
    107 {
    108  return (statprefix  +  quote(regexp) +  statsuffix  +   quote(flag));
    109 }
    110 
    111 
    112 function quote(text)
    113 {
    114  return (singlequote  +  text  + singlequote);
    115 }