JSTests/test262/test/built-ins/Object/defineProperty/15.2.3.6-4-409.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.6-4-409
description: >
    ES5 Attributes - Inherited property whose [[Enumerable]] attribute
    is set to false is enumerable (RegExp instance)
---*/

            Object.defineProperty(RegExp.prototype, "prop", {
                value: 1001,
                writable: true,
                enumerable: true,
                configurable: true
            });
            var regObj = new RegExp();

            var verifyEnumerable = false;
            for (var p in regObj) {
                if (p === "prop") {
                    verifyEnumerable = true;
                }
            }

assert.sameValue(regObj.hasOwnProperty("prop"), false, 'regObj.hasOwnProperty("prop")');
assert(verifyEnumerable, 'verifyEnumerable !== true');