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: 06 November 2002 38 * SUMMARY: arr.sort() should not output |undefined| when |arr| is empty 39 * See http://bugzilla.mozilla.org/show_bug.cgi?id=178722 40 * 41 * ECMA-262 Ed.3: 15.4.4.11 Array.prototype.sort (comparefn) 42 * 43 * 1. Call the [[Get]] method of this object with argument "length". 44 * 2. Call ToUint32(Result(1)). 45 * 3. Perform an implementation-dependent sequence of calls to the [[Get]], 46 * [[Put]], and [[Delete]] methods of this object, etc. etc. 47 * 4. Return this object. 48 * 49 * 50 * Note that sort() is done in-place on |arr|. In other words, sort() is a 51 * "destructive" method rather than a "functional" method. The return value 52 * of |arr.sort()| and |arr| are the same object. 53 * 54 * If |arr| is an empty array, the return value of |arr.sort()| should be 55 * an empty array, not the value |undefined| as was occurring in bug 178722. 56 * 57 */ 58 //----------------------------------------------------------------------------- 59 var UBound = 0; 60 var bug = 178722; 61 var summary = 'arr.sort() should not output |undefined| when |arr| is empty'; 62 var status = ''; 63 var statusitems = []; 64 var actual = ''; 65 var actualvalues = []; 66 var expect= ''; 67 var expectedvalues = []; 68 var arr; 69 70 71 // create empty array or pseudo-array objects in various ways 72 var arr1 = Array(); 73 var arr2 = new Array(); 74 var arr3 = []; 75 var arr4 = [1]; 76 arr4.pop(); 77 function f () {return arguments}; 78 var arr5 = f(); 79 arr5.__proto__ = Array.prototype; 80 81 82 status = inSection(1); 83 arr = arr1.sort(); 84 actual = arr instanceof Array && arr.length === 0 && arr === arr1; 85 expect = true; 86 addThis(); 87 88 status = inSection(2); 89 arr = arr2.sort(); 90 actual = arr instanceof Array && arr.length === 0 && arr === arr2; 91 expect = true; 92 addThis(); 93 94 status = inSection(3); 95 arr = arr3.sort(); 96 actual = arr instanceof Array && arr.length === 0 && arr === arr3; 97 expect = true; 98 addThis(); 99 100 status = inSection(4); 101 arr = arr4.sort(); 102 actual = arr instanceof Array && arr.length === 0 && arr === arr4; 103 expect = true; 104 addThis(); 105 106 status = inSection(5); 107 arr = arr5.sort(); 108 actual = arr instanceof Array && arr.length === 0 && arr === arr5; 109 expect = true; 110 addThis(); 111 112 113 // now do the same thing, with non-default sorting: 114 function g() {return 1;} 115 116 status = inSection('1a'); 117 arr = arr1.sort(g); 118 actual = arr instanceof Array && arr.length === 0 && arr === arr1; 119 expect = true; 120 addThis(); 121 122 status = inSection('2a'); 123 arr = arr2.sort(g); 124 actual = arr instanceof Array && arr.length === 0 && arr === arr2; 125 expect = true; 126 addThis(); 127 128 status = inSection('3a'); 129 arr = arr3.sort(g); 130 actual = arr instanceof Array && arr.length === 0 && arr === arr3; 131 expect = true; 132 addThis(); 133 134 status = inSection('4a'); 135 arr = arr4.sort(g); 136 actual = arr instanceof Array && arr.length === 0 && arr === arr4; 137 expect = true; 138 addThis(); 139 140 status = inSection('5a'); 141 arr = arr5.sort(g); 142 actual = arr instanceof Array && arr.length === 0 && arr === arr5; 143 expect = true; 144 addThis(); 145 146 147 148 //----------------------------------------------------------------------------- 149 test(); 150 //----------------------------------------------------------------------------- 151 152 153 154 function addThis() 155 { 156 statusitems[UBound] = status; 157 actualvalues[UBound] = actual; 158 expectedvalues[UBound] = expect; 159 UBound++; 160 } 161 162 163 function test() 164 { 165 enterFunc('test'); 166 printBugNumber(bug); 167 printStatus(summary); 168 169 for (var i=0; i<UBound; i++) 170 { 171 reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); 172 } 173 174 exitFunc ('test'); 175 } 176
