JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-4-342.js

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

/*---
es5id: 15.2.3.6-4-342
description: >
    ES5 Attributes - property ([[Writable]] is true, [[Enumerable]] is
    false, [[Configurable]] is true) is deletable
---*/

        var obj = {};

        Object.defineProperty(obj, "prop", {
            value: 2010,
            writable: true,
            enumerable: false,
            configurable: true
        });
        var beforeDelete = obj.hasOwnProperty("prop");
        delete obj.prop;
        var afterDelete = obj.hasOwnProperty("prop");

assert(beforeDelete, 'beforeDelete !== true');
assert.sameValue(afterDelete, false, 'afterDelete');