JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-3-197.js

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

/*---
es5id: 15.2.3.6-3-197
description: >
    Object.defineProperty - 'writable' property in 'Attributes' is a
    RegExp object (8.10.5 step 6.b)
---*/

        var obj = {};

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

        var beforeWrite = obj.hasOwnProperty("property") && typeof obj.property === "undefined";

        obj.property = "isWritable";

        var afterWrite = (obj.property === "isWritable");

assert(beforeWrite, 'beforeWrite !== true');
assert(afterWrite, 'afterWrite !== true');