15.2.3.7-6-a-308.js (1043B)
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-308 6 description: > 7 Object.defineProperties - 'O' is an Arguments object, 'P' is 8 generic own data property of 'O', test TypeError is thrown when 9 updating the [[Enumerable]] attribute value of 'P' which is not 10 configurable (10.6 [[DefineOwnProperty]] step 4) 11 includes: [propertyHelper.js] 12 ---*/ 13 14 var arg = (function() { 15 return arguments; 16 }(1, 2, 3)); 17 18 Object.defineProperty(arg, "genericProperty", { 19 enumerable: true, 20 configurable: false 21 }); 22 23 try { 24 Object.defineProperties(arg, { 25 "genericProperty": { 26 enumerable: false 27 } 28 }); 29 30 throw new Test262Error("Expected an exception."); 31 } catch (e) { 32 if (!(e instanceof TypeError)) { 33 throw new Test262Error("Expected TypeError, got " + e); 34 } 35 } 36 37 verifyProperty(arg, "genericProperty", { 38 value: undefined, 39 writable: false, 40 enumerable: true, 41 configurable: false, 42 }); 43 44 reportCompare(0, 0);