/// 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 ch15/15.2/15.2.3/15.2.3.7/15.2.3.7-6-a-193.js * @description Object.defineProperties - 'O' is an Array, 'P' is an array index named property, 'P' is own accessor property that overrides an inherited accessor property (15.4.5.1 step 4.c) */ function testcase() { try { Object.defineProperty(Array.prototype, "0", { get: function () { return 11; }, configurable: true }); var arr = []; Object.defineProperty(arr, "0", { get: function () { return 12; }, configurable: false }); Object.defineProperties(arr, { "0": { configurable: true } }); return false; } catch (e) { return e instanceof TypeError && arr[0] === 12 && Array.prototype[0] === 11; } finally { delete Array.prototype[0]; } } runTestCase(testcase);