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-428 : Redefining a non-configurable property with the "same value" is permitted, but -0.0 and +0.0 are not "same value"
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 var obj = {};
  32 
  33 Object.defineProperty(obj, "0", {
  34     value: -0,
  35     configurable: false
  36 });
  37 
  38 try {
  39     Object.defineProperties(obj, {
  40         "0": { value: +0 }
  41     });
  42     fail("#1 expected TypeError");
  43 } catch (e) {
  44     if (! (e instanceof TypeError)) {
  45         fail("#2 expected TypeError, got " + e);
  46     }
  47 }
  48 
  49 // -0 should be fine.. should not throw any TypeError
  50 Object.defineProperties(obj, {
  51     "0": { value: -0 }
  52 });
  53