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-427 : Object.seal and Object.freeze do not work for array objects as expected
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 function checkSeal(arr) {
  32     'use strict';
  33 
  34     try {
  35         delete arr[0];
  36         fail("#1 can delete sealed array element");
  37     } catch (e) {
  38         if (! (e instanceof TypeError)) {
  39             fail("#2 TypeError expected, got " + e);
  40         }
  41     }
  42 
  43     try {
  44         arr[arr.length] = 334;
  45         fail("#3 can extend sealed array");
  46     } catch (e) {
  47         if (! (e instanceof TypeError)) {
  48             fail("#4 TypeError expected, got " + e);
  49         }
  50     }
  51 }
  52 
  53 function checkFreeze(arr) {
  54     'use strict';
  55     checkSeal(arr);
  56 
  57     try {
  58         arr[arr.length - 1] = 34;
  59         fail("#5 can assign to frozen array element");
  60     } catch (e) {
  61         if (! (e instanceof TypeError)) {
  62             fail("#6 TypeError expected, got " + e);
  63         }
  64     }
  65 }
  66 
  67 
  68 var arr = [ 24 ];
  69 Object.seal(arr);
  70 checkSeal(arr);
  71 
  72 var arr2 = [ 42 ];
  73 Object.freeze(arr2);
  74 checkFreeze(arr2);
  75