tests/mozilla/ecma_3/RegExp/15.10.4.1-1.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): pschwartau@netscape.com
  20 * Date: 26 November 2000
  21 *
  22 *
  23 *SUMMARY: Passing a RegExp object to a RegExp() constructor.
  24 *This test arose from Bugzilla bug 61266. The ECMA3 section is:
  25 *
  26 *  15.10.4.1 new RegExp(pattern, flags)
  27 *
  28 *  If pattern is an object R whose [[Class]] property is "RegExp" and
  29 *  flags is undefined, then let P be the pattern used to construct R
  30 *  and let F be the flags used to construct R. If pattern is an object R
  31 *  whose [[Class]] property is "RegExp" and flags is not undefined,
  32 *  then throw a TypeError exception. Otherwise, let P be the empty string
  33 *  if pattern is undefined and ToString(pattern) otherwise, and let F be
  34 *  the empty string if flags is undefined and ToString(flags) otherwise.
  35 *
  36 *
  37 *The current test will check the first scenario outlined above:
  38 *
  39 *   "pattern" is itself a RegExp object R
  40 *   "flags"  is undefined
  41 *
  42 * We check that a new RegExp object obj2 defined from these parameters
  43 * is morally the same as the original RegExp object obj1. Of course, they
  44 * can't be equal as objects - so we check their enumerable properties...
  45 *
  46 * In this test, the initial RegExp object obj1 will not include a flag. The flags
  47 * parameter for obj2  will be undefined in the sense of not being provided.
  48 */
  49 //-------------------------------------------------------------------------------------------------
  50 var bug = '61266';
  51 var summary = 'Passing a RegExp object to a RegExp() constructor';
  52 var statprefix = 'Applying RegExp() twice to pattern ';
  53 var statsuffix =  '; testing property ';
  54 var singlequote = "'";
  55 var i = -1; var s = '';
  56 var obj1 = {}; var obj2 = {};
  57 var status = ''; var actual = ''; var expect = ''; var msg = '';
  58 var patterns = new Array();
  59
  60
  61 // various regular expressions to try -
  62 patterns[0] = '';
  63 patterns[1] = 'abc';
  64 patterns[2] = '(.*)(3-1)\s\w';
  65 patterns[3] = '(.*)(...)\\s\\w';
  66 patterns[4] = '[^A-Za-z0-9_]';
  67 patterns[5] = '[^\f\n\r\t\v](123.5)([4 - 8]$)';
  68
  69
  70
  71 //-------------------------------------------------------------------------------------------------
  72 test();
  73 //-------------------------------------------------------------------------------------------------
  74
  75
  76 function test()
  77 {
  78   enterFunc ('test');
  79   printBugNumber (bug);
  80   printStatus (summary);
  81
  82   for (i in patterns)
  83   {
  84     s = patterns[i];
  85     status =getStatus(s);
  86     obj1 = new RegExp(s);
  87     obj2 = new RegExp(obj1);
  88
  89     for (prop in obj2)
  90     {
  91       msg  = status +  quote(prop);
  92       actual = obj2[prop];
  93       expect = obj1[prop];
  94       reportCompare (expect, actual, msg);
  95     }
  96   }
  97
  98   exitFunc ('test');
  99 }
 100
 101
 102 function getStatus(regexp)
 103 {
 104   return (statprefix  +  quote(regexp) +  statsuffix);
 105 }
 106
 107
 108 function quote(text)
 109 {
 110   return (singlequote  +  text  + singlequote);
 111 }