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 }