/// 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. /** * @path ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-377.js * @description ES5 Attributes - property ([[Writable]] is false, [[Enumerable]] is false, [[Configurable]] is false) is undeletable */ function testcase() { var obj = {}; Object.defineProperty(obj, "prop", { value: 2010, writable: false, enumerable: false, configurable: false }); var beforeDelete = obj.hasOwnProperty("prop"); delete obj.prop; var afterDelete = obj.hasOwnProperty("prop"); return beforeDelete && obj.prop === 2010 && afterDelete; } runTestCase(testcase);