/// 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 ch15/15.2/15.2.3/15.2.3.7/15.2.3.7-5-b-67.js * @description Object.defineProperties - 'configurable' property of 'descObj' is own accessor property that overrides an inherited data property (8.10.5 step 4.a) */ function testcase() { var obj = {}; var proto = { configurable: true }; var Con = function () { }; Con.prototype = proto; var descObj = new Con(); Object.defineProperty(descObj, "configurable", { get: function () { return false; } }); Object.defineProperties(obj, { prop: descObj }); var result1 = obj.hasOwnProperty("prop"); delete obj.prop; var result2 = obj.hasOwnProperty("prop"); return result1 === true && result2 === true; } runTestCase(testcase);