/// 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. /** * @path ch15/15.4/15.4.4/15.4.4.22/15.4.4.22-8-b-iii-1-12.js * @description Array.prototype.reduceRight - element to be retrieved is own accessor property that overrides an inherited data property on an Array */ function testcase() { var testResult = false; function callbackfn(prevVal, curVal, idx, obj) { if (idx === 1) { testResult = (prevVal === "20"); } } try { Array.prototype[2] = 2; var arr = [0, 1]; Object.defineProperty(arr, "2", { get: function () { return "20"; }, configurable: true }); arr.reduceRight(callbackfn); return testResult; } finally { delete Array.prototype[2]; } } runTestCase(testcase);