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      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
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      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) 2001
     18 * the Initial Developer. All Rights Reserved.
     19 *
     20 * Contributors: d-russo (at) ti.com, pschwartau (at) netscape.com, joerg.schaible (at) gmx.de
     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:    22 Jan 2002
     38 * SUMMARY: Testing Error.prototype.toString()
     39 *
     40 * Revised: 25 Nov 2002
     41 * See http://bugzilla.mozilla.org/show_bug.cgi?id=181909
     42 *
     43 * Note that ECMA-262 3rd Edition Final, Section 15.11.4.4 states that
     44 * Error.prototype.toString() returns an implementation-dependent string.
     45 * Therefore any testcase on this property is somewhat arbitrary.
     46 *
     47 * However, d-russo (at) ti.com pointed out that Rhino was returning this:
     48 *
     49 *               js> err = new Error()
     50 *               undefined: undefined
     51 *
     52 *               js> err = new Error("msg")
     53 *               undefined: msg
     54 *
     55 *
     56 * We expect Rhino to return what SpiderMonkey currently does:
     57 *
     58 *               js> err = new Error()
     59 *               Error
     60 *
     61 *               js> err = new Error("msg")
     62 *               Error: msg
     63 *
     64 *
     65 * i.e. we expect err.toString() === err.name if err.message is not defined;
     66 * otherwise, we expect err.toString() === err.name + ': ' + err.message.
     67 *
     68 * See also ECMA 15.11.4.2, 15.11.4.3
     69 */
     70 //-----------------------------------------------------------------------------
     71 var UBound = 0;
     72 var bug = '(none)';
     73 var summary = 'Testing Error.prototype.toString()';
     74 var status = '';
     75 var statusitems = [];
     76 var actual = '';
     77 var actualvalues = [];
     78 var expect= '';
     79 var expectedvalues = [];
     80 var EMPTY_STRING = '';
     81 var EXPECTED_FORMAT = 0;
     82 
     83 
     84 status = inSection(1);
     85 var err1 = new Error('msg1');
     86 actual = examineThis(err1, 'msg1');
     87 expect = EXPECTED_FORMAT;
     88 addThis();
     89 
     90 status = inSection(2);
     91 var err2 = new Error(err1);
     92 actual = examineThis(err2, err1);
     93 expect = EXPECTED_FORMAT;
     94 addThis();
     95 
     96 status = inSection(3);
     97 var err3 = new Error();
     98 actual = examineThis(err3, EMPTY_STRING);
     99 expect = EXPECTED_FORMAT;
    100 addThis();
    101 
    102 status = inSection(4);
    103 var err4 = new Error(EMPTY_STRING);
    104 actual = examineThis(err4, EMPTY_STRING);
    105 expect = EXPECTED_FORMAT;
    106 addThis();
    107 
    108 // now generate a run-time error -
    109 status = inSection(5);
    110 try
    111 {
    112   eval('1=2');
    113 }
    114 catch(err5)
    115 {
    116  actual = examineThis(err5, '.*');
    117 }
    118 expect = EXPECTED_FORMAT;
    119 addThis();
    120 
    121 
    122 
    123 //-----------------------------------------------------------------------------
    124 test();
    125 //-----------------------------------------------------------------------------
    126 
    127 
    128 
    129 /*
    130  * Searches err.toString() for err.name + ':' + err.message,
    131  * with possible whitespace on each side of the colon sign.
    132  *
    133  * We allow for no colon in case err.message was not provided by the user.
    134  * In such a case, SpiderMonkey and Rhino currently set err.message = '',
    135  * as allowed for by ECMA 15.11.4.3. This makes |pattern| work in this case.
    136  *
    137  * If this is ever changed to a non-empty string, e.g. 'undefined',
    138  * you may have to modify |pattern| to take that into account -
    139  *
    140  */
    141 function examineThis(err, msg)
    142 {
    143   var pattern = err.name + '\\s*:?\\s*' + msg;
    144   return err.toString().search(RegExp(pattern));
    145 }
    146 
    147 
    148 function addThis()
    149 {
    150   statusitems[UBound] = status;
    151   actualvalues[UBound] = actual;
    152   expectedvalues[UBound] = expect;
    153   UBound++;
    154 }
    155 
    156 
    157 function test()
    158 {
    159   enterFunc ('test');
    160   printBugNumber (bug);
    161   printStatus (summary);
    162 
    163   for (var i = 0; i < UBound; i++)
    164   {
    165     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
    166   }
    167 
    168   exitFunc ('test');
    169 }
    170