js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-405.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.6-4-405
description: >
    ES5 Attributes - Failed to add a property to an object when the
    object's object has a property with same name and [[Writable]]
    attribute is set to false (Number instance)
includes: [propertyHelper.js]
---*/

Object.defineProperty(Number.prototype, "prop", {
  value: 1001,
  writable: false,
  enumerable: false,
  configurable: true
});

var numObj = new Number();

assert(!numObj.hasOwnProperty("prop"));
verifyNotWritable(numObj, "prop", "noCheckOwnProp");

reportCompare(0, 0);