15.2.3.7-6-a-296.js (1077B)
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-296 6 description: > 7 Object.defineProperties - 'O' is an Arguments object, 'P' is an 8 array index named data property of 'O' but not defined in 9 [[ParameterMap]] of 'O', test TypeError is thrown when updating 10 the [[Enumerable]] attribute value of 'P' which is not 11 configurable (10.6 [[DefineOwnProperty]] step 4) 12 includes: [propertyHelper.js] 13 ---*/ 14 15 16 var arg; 17 18 (function fun() { 19 arg = arguments; 20 }()); 21 22 Object.defineProperty(arg, "0", { 23 value: 0, 24 writable: false, 25 enumerable: true, 26 configurable: false 27 }); 28 29 try { 30 Object.defineProperties(arg, { 31 "0": { 32 enumerable: false 33 } 34 }); 35 36 throw new Test262Error("Expected an exception."); 37 } catch (e) { 38 if (!(e instanceof TypeError)) { 39 throw new Test262Error("Expected TypeError, got " + e); 40 } 41 } 42 43 verifyProperty(arg, "0", { 44 value: 0, 45 writable: false, 46 enumerable: true, 47 configurable: false, 48 }); 49 50 reportCompare(0, 0);