1 /* 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * NASHORN-437 : Array.prototype.map should return an array whose length should be same as input array length 26 * 27 * @test 28 * @run 29 */ 30 31 var callbackCount = 0; 32 33 function func(kVal, k, arr) { 34 arr.length = 2; 35 callbackCount++; 36 return 42; 37 } 38 39 var arr = [ 1, 2, 3, 4]; 40 var res = arr.map(func); 41 if (res.length !== 4) { 42 fail("map's result does not have 4 elements"); 43 } 44 45 if (callbackCount !== 2) { 46 fail("callback should be called only twice"); 47 } 48 49 if (res[2] !== undefined || res[3] !== undefined) { 50 fail("last two elements are not undefined"); 51 }