JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-3-179.js

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

/*---
es5id: 15.2.3.6-3-179
description: >
    Object.defineProperty - 'writable' property in 'Attributes' is
    null  (8.10.5 step 6.b)
includes: [propertyHelper.js]
---*/

var obj = { };

Object.defineProperty(obj, "property", { writable: null });

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