test/built-ins/Object/defineProperty/15.2.3.6-4-587.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: 15.2.3.6-4-587
description: ES5 Attributes - Inherited property is non-enumerable (Math)
includes: [runTestCase.js]
---*/

function testcase() {
        var data = "data";
        try {
            Object.defineProperty(Object.prototype, "prop", {
                get: function () {
                    return data;
                },
                enumerable: false,
                configurable: true
            });
            var verifyEnumerable = false;
            for (var p in Math) {
                if (p === "prop") {
                    verifyEnumerable = true;
                }
            }

            return !Math.hasOwnProperty("prop") && !verifyEnumerable;
        } finally {
            delete Object.prototype.prop;
        }
    }
runTestCase(testcase);