// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 15.2.3.6-4-453 description: > ES5 Attributes - fail to update [[Get]] attribute of accessor property ([[Get]] is undefined, [[Set]] is undefined, [[Enumerable]] is false, [[Configurable]] is false) to different value includes: [runTestCase.js] ---*/ function testcase() { var obj = {}; var getFunc = function () { return 1001; }; Object.defineProperty(obj, "prop", { get: undefined, set: undefined, enumerable: false, configurable: false }); var result1 = typeof obj.prop === "undefined"; var desc1 = Object.getOwnPropertyDescriptor(obj, "prop"); try { Object.defineProperty(obj, "prop", { get: getFunc }); return false; } catch (e) { var result2 = typeof obj.prop === "undefined"; var desc2 = Object.getOwnPropertyDescriptor(obj, "prop"); return result1 && result2 && typeof desc1.get === "undefined" && typeof desc2.get === "undefined" && e instanceof TypeError; } } runTestCase(testcase);