// 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.

/*---
es5id: 15.2.3.10-3-18
description: >
    Object.preventExtensions - named properties cannot be added into a
    Date object
includes: [runTestCase.js]
---*/

function testcase() {
        var dateObj = new Date();
        var preCheck = Object.isExtensible(dateObj);
        Object.preventExtensions(dateObj);

        dateObj.exName = 2;
        return preCheck && !dateObj.hasOwnProperty("exName");
    }
runTestCase(testcase);