test/suite/ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-23.js


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/// 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 ch15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-23.js
 * @description Object.defineProperty - 'name' is existing an inherited data property (8.12.9 step 1)
 */


function testcase() {
        var proto = {};
        Object.defineProperty(proto, "foo", {
            value: 11,
            configurable: false
        });

        var ConstructFun = function () {};
        ConstructFun.prototype = proto;
        var obj = new ConstructFun();

        Object.defineProperty(obj, "foo", {
            configurable: true
        });
        return obj.hasOwnProperty("foo") && (typeof obj.foo) === "undefined";
    }
runTestCase(testcase);