test262/test/built-ins/Object/getOwnPropertyNames/15.2.3.4-4-45.js

// 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: 15.2.3.4-4-45
description: >
    Object.getOwnPropertyNames - inherited data property of Array
    object 'O' is not pushed into the returned array.
includes: [runTestCase.js]
---*/

function testcase() {
        try {
            var arr = [0, 1, 2];

            Array.prototype.protoProperty = "protoArray";

            var result = Object.getOwnPropertyNames(arr);

            for (var p in result) {
                if (result[p] === "protoProperty") {
                    return false;
                }
            }
            return true;
        } finally {
            delete Array.prototype.protoProperty;
        }
    }
runTestCase(testcase);