15.2.3.6-4-190.js (941B)
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: 15.2.3.6-4-190 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is an array index 8 named property, 'name' is own data property, test TypeError is 9 thrown on updating the configurable attribute from false to true 10 (15.4.5.1 step 4.c) 11 includes: [propertyHelper.js] 12 ---*/ 13 14 var arrObj = []; 15 16 Object.defineProperty(arrObj, 0, { 17 value: "ownDataProperty", 18 configurable: false 19 }); 20 21 try { 22 Object.defineProperty(arrObj, 0, { 23 configurable: true 24 }); 25 throw new Test262Error("Expected an exception."); 26 } catch (e) { 27 if (!(e instanceof TypeError)) { 28 throw new Test262Error("Expected TypeError, got " + e); 29 } 30 } 31 32 verifyProperty(arrObj, "0", { 33 value: "ownDataProperty", 34 writable: false, 35 enumerable: false, 36 configurable: false, 37 }); 38 39 reportCompare(0, 0);