// 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: 15.2.3.6-4-581 description: ES5 Attributes - Fail to add property into object (Number instance) includes: [propertyHelper.js] ---*/ var data = "data"; try { Object.defineProperty(Number.prototype, "prop", { get: function () { return data; }, enumerable: false, configurable: true }); var numObj = new Number(); verifyNotWritable(numObj, "prop", "nocheck"); assert(!numObj.hasOwnProperty("prop")); assert.sameValue(numObj.prop, "data"); assert.sameValue(data, "data"); } finally { delete Number.prototype.prop; }