/// 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 ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-8-b-i-14.js * @description Array.prototype.lastIndexOf - element to be retrieved is own accessor property that overrides an inherited accessor property on an Array-like object */ function testcase() { var obj = { length: 1 }; try { Object.defineProperty(Object.prototype, "0", { get: function () { return false; }, configurable: true }); Object.defineProperty(obj, "0", { get: function () { return true; }, configurable: true }); return 0 === Array.prototype.lastIndexOf.call(obj, true); } finally { delete Object.prototype[0]; } } runTestCase(testcase);