15.2.3.7-6-a-299.js (1183B)
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-299 6 description: > 7 Object.defineProperties - 'O' is an Arguments object, 'P' is an 8 array index named accessor property of 'O' but not defined in 9 [[ParameterMap]] of 'O', test TypeError is thrown when updating 10 the [[Set]] attribute value of 'P' which is not configurable (10.6 11 [[DefineOwnProperty]] step 4) 12 includes: [propertyHelper.js] 13 ---*/ 14 15 16 var arg; 17 18 (function fun() { 19 arg = arguments; 20 }()); 21 22 function get_func() { 23 return 0; 24 } 25 26 Object.defineProperty(arg, "0", { 27 get: get_func, 28 set: undefined, 29 enumerable: false, 30 configurable: false 31 }); 32 33 function set_func(value) { 34 arg.setVerifyHelpProp = value; 35 } 36 try { 37 Object.defineProperties(arg, { 38 "0": { 39 set: set_func 40 } 41 }); 42 throw new Test262Error("Expected an exception."); 43 } catch (e) { 44 verifyEqualTo(arg, "0", get_func()); 45 46 if (!(e instanceof TypeError)) { 47 throw new Test262Error("Expected TypeError, got " + e); 48 } 49 } 50 51 verifyProperty(arg, "0", { 52 enumerable: false, 53 configurable: false, 54 }); 55 56 reportCompare(0, 0);