15.2.3.6-4-296.js (1049B)
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: 15.2.3.6-4-296 6 description: > 7 Object.defineProperty - 'O' is an Arguments object, 'name' is own 8 data property of 'O', test TypeError is thrown when updating the 9 [[Configurable]] attribute value of 'name' which is defined as 10 non-configurable (10.6 [[DefineOwnProperty]] step 4) 11 includes: [propertyHelper.js] 12 ---*/ 13 14 (function() { 15 Object.defineProperty(arguments, "0", { 16 value: 10, 17 writable: false, 18 enumerable: false, 19 configurable: false 20 }); 21 try { 22 Object.defineProperty(arguments, "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(arguments, "0", { 33 value: 10, 34 writable: false, 35 enumerable: false, 36 configurable: false, 37 }); 38 }(0, 1, 2)); 39 40 reportCompare(0, 0);