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 7 * http://www.mozilla.org/NPL/ 8 * 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 26 * of those above. If you wish to allow use of your version of this file only 27 * under the terms of either the GPL or the LGPL, and not to allow others to 28 * use your version of this file under the terms of the NPL, indicate your 29 * decision by deleting the provisions above and replace them with the notice 30 * and other provisions required by the GPL or the LGPL. If you do not delete 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