// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.13-2-26 description: > Object.isExtensible returns false if O is not extensible and has a prototype that is extensible includes: [runTestCase.js] ---*/ function testcase() { var proto = {}; var ConstructFun = function () { }; ConstructFun.prototype = proto; var obj = new ConstructFun(); Object.preventExtensions(obj); return !Object.isExtensible(obj); } runTestCase(testcase);