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) 2002 18 * the Initial Developer. All Rights Reserved. 19 * 20 * Contributor(s): pschwartau (at) netscape.com 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: 11 Feb 2002 38 * SUMMARY: Testing functions having duplicate formal parameter names 39 * 40 * Note: given function f(x,x,x,x) {return x;}; f(1,2,3,4) should return 4. 41 * See ECMA-262 3rd Edition Final Section 10.1.3: Variable Instantiation 42 * 43 * Also see http://bugzilla.mozilla.org/show_bug.cgi?id=124900 44 */ 45 //----------------------------------------------------------------------------- 46 var UBound = 0; 47 var bug = 124900; 48 var summary = 'Testing functions having duplicate formal parameter names'; 49 var status = ''; 50 var statusitems = []; 51 var actual = ''; 52 var actualvalues = []; 53 var expect= ''; 54 var expectedvalues = []; 55 56 57 function f1(x,x) 58 { 59 return x; 60 } 61 status = inSection(1); 62 actual = f1(1,2); 63 expect = 2; 64 addThis(); 65 66 67 function f2(x,x,x) 68 { 69 return x*x*x; 70 } 71 status = inSection(2); 72 actual = f2(1,2,3); 73 expect = 27; 74 addThis(); 75 76 77 function f3(x,x,x,x) 78 { 79 return 'a' + x + 'b' + x + 'c' + x ; 80 } 81 status = inSection(3); 82 actual = f3(1,2,3,4); 83 expect = 'a4b4c4'; 84 addThis(); 85 86 87 /* 88 * If the value of the last duplicate parameter is not provided by 89 * the function caller, the value of this parameter is undefined 90 */ 91 function f4(x,a,b,x,z) 92 { 93 return x; 94 } 95 status = inSection(4); 96 actual = f4(1,2); 97 expect = undefined; 98 addThis(); 99 100 101 /* 102 * f.toString() should preserve any duplicate formal parameter names that exist 103 */ 104 function f5(x,x,x,x) 105 { 106 } 107 status = inSection(5); 108 actual = f5.toString().match(/\((.*)\)/)[1]; 109 actual = actual.replace(/\s/g, ''); // for definiteness, remove any white space 110 expect = 'x,x,x,x'; 111 addThis(); 112 113 114 function f6(x,x,x,x) 115 { 116 var ret = []; 117 118 for (var i=0; i<arguments.length; i++) 119 ret.push(arguments[i]); 120 121 return ret.toString(); 122 } 123 status = inSection(6); 124 actual = f6(1,2,3,4); 125 expect = '1,2,3,4'; 126 addThis(); 127 128 129 /* 130 * This variation (assigning to x inside f) is from nboyd (at) atg.com 131 * See http://bugzilla.mozilla.org/show_bug.cgi?id=124900 132 */ 133 function f7(x,x,x,x) 134 { 135 x = 999; 136 var ret = []; 137 138 for (var i=0; i<arguments.length; i++) 139 ret.push(arguments[i]); 140 141 return ret.toString(); 142 } 143 status = inSection(7); 144 actual = f7(1,2,3,4); 145 expect = '1,2,3,999'; 146 addThis(); 147 148 149 /* 150 * Same as above, but with |var| keyword added - 151 */ 152 function f8(x,x,x,x) 153 { 154 var x = 999; 155 var ret = []; 156 157 for (var i=0; i<arguments.length; i++) 158 ret.push(arguments[i]); 159 160 return ret.toString(); 161 } 162 status = inSection(8); 163 actual = f8(1,2,3,4); 164 expect = '1,2,3,999'; 165 addThis(); 166 167 168 169 //----------------------------------------------------------------------------- 170 test(); 171 //----------------------------------------------------------------------------- 172 173 174 175 function addThis() 176 { 177 statusitems[UBound] = status; 178 actualvalues[UBound] = actual; 179 expectedvalues[UBound] = expect; 180 UBound++; 181 } 182 183 184 function test() 185 { 186 enterFunc('test'); 187 printBugNumber(bug); 188 printStatus(summary); 189 190 for (var i=0; i<UBound; i++) 191 { 192 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); 193 } 194 195 exitFunc ('test'); 196 } 197
