test262/test/built-ins/Object/defineProperty/15.2.3.6-3-76.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// Ecma International makes this code available under the terms and conditions set
// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
// "Use Terms").   Any redistribution of this code must retain the above
// copyright and this notice and otherwise comply with the Use Terms.

/*---
es5id: 15.2.3.6-3-76
description: >
    Object.defineProperty - 'configurable' property in 'Attributes' is
    an inherited data property (8.10.5 step 4.a)
includes: [propertyHelper.js]
---*/

var obj = { };

var proto = {
    configurable: false
};

var ConstructFun = function () { };
ConstructFun.prototype = proto;

var child = new ConstructFun();

Object.defineProperty(obj, "property", child);

assert(obj.hasOwnProperty("property"));

verifyNotConfigurable(obj, "property");

assert(obj.hasOwnProperty("property"));

assert.sameValue(typeof (obj.property), "undefined");