// 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: 15.2.3.6-4-410
description: >
    ES5 Attributes - Failed to add a property to an object when the
    object's prototype has a property with the same name and
    [[Writable]] set to false (JSON)
includes: [propertyHelper.js]
---*/

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

    assert(!JSON.hasOwnProperty("prop"));
    verifyNotWritable(JSON, "prop", "noCheckOwnProp");
    assert.sameValue(JSON.prop, 1001);

} finally {
    delete Object.prototype.prop;
}