15.2.3.6-4-492.js (1011B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-4-492 6 description: > 7 ES5 Attributes - fail to update [[Configurable]] attribute of 8 accessor property ([[Get]] is undefined, [[Set]] is a Function, 9 [[Enumerable]] is false, [[Configurable]] is false) to different 10 value 11 includes: [propertyHelper.js] 12 ---*/ 13 14 var obj = {}; 15 16 var verifySetFunc = "data"; 17 var setFunc = function(value) { 18 verifySetFunc = value; 19 }; 20 21 Object.defineProperty(obj, "prop", { 22 get: undefined, 23 set: setFunc, 24 enumerable: false, 25 configurable: false 26 }); 27 var desc1 = Object.getOwnPropertyDescriptor(obj, "prop"); 28 29 try { 30 Object.defineProperty(obj, "prop", { 31 configurable: true 32 }); 33 34 throw new Test262Error("Expected TypeError"); 35 } catch (e) { 36 assert(e instanceof TypeError); 37 38 assert.sameValue(desc1.configurable, false); 39 } 40 41 verifyProperty(obj, "prop", { 42 configurable: false, 43 }); 44 45 reportCompare(0, 0);