15.2.3.7-6-a-270.js (927B)
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: 15.2.3.7-6-a-270 6 description: > 7 Object.defineProperties - 'O' is an Array, 'P' is generic own data 8 property of 'O', test TypeError is thrown when updating the 9 [[Value]] attribute value of 'P' which is defined as unwritable 10 and non-configurable (15.4.5.1 step 5) 11 includes: [propertyHelper.js] 12 ---*/ 13 14 15 var arr = []; 16 17 Object.defineProperty(arr, "property", { 18 value: 12 19 }); 20 21 try { 22 Object.defineProperties(arr, { 23 "property": { 24 value: 36 25 } 26 }); 27 throw new Test262Error("Expected an exception."); 28 } catch (e) { 29 if (!(e instanceof TypeError)) { 30 throw new Test262Error("Expected TypeError, got " + e); 31 } 32 } 33 34 verifyProperty(arr, "property", { 35 value: 12, 36 writable: false, 37 enumerable: false, 38 configurable: false, 39 }); 40 41 reportCompare(0, 0);