test/built-ins/Object/create/15.2.3.5-4-196.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.

/*---
es5id: 15.2.3.5-4-196
description: >
    Object.create - one property in 'Properties' is the Math object
    that uses Object's [[Get]] method to access the 'writable'
    property (8.10.5 step 6.a)
includes: [runTestCase.js]
---*/

function testcase() {

        try {
            Math.writable = true;

            var newObj = Object.create({}, {
                prop: Math
            });

            var beforeWrite = (newObj.hasOwnProperty("prop") && typeof (newObj.prop) === "undefined");

            newObj.prop = "isWritable";

            var afterWrite = (newObj.prop === "isWritable");

            return beforeWrite === true && afterWrite === true;
        } finally {
            delete Math.writable;
        }
    }
runTestCase(testcase);