/// 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 ch15/15.4/15.4.4/15.4.4.14/15.4.4.14-9-b-i-13.js * @description Array.prototype.indexOf - element to be retrieved is own accessor property that overrides an inherited accessor property on an Array */ function testcase() { var arr = []; try { Object.defineProperty(Array.prototype, "0", { get: function () { return false; }, configurable: true }); Object.defineProperty(arr, "0", { get: function () { return true; }, configurable: true }); return 0 === arr.indexOf(true); } finally { delete Array.prototype[0]; } } runTestCase(testcase);