15.2.3.7-6-a-277.js (1044B)
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-277 6 description: > 7 Object.defineProperties - 'O' is an Array, 'P' is generic own 8 accessor property of 'O', test TypeError is thrown when updating 9 the [[Configurable]] attribute value of 'P' which is defined as 10 non-configurable (15.4.5.1 step 5) 11 includes: [propertyHelper.js] 12 ---*/ 13 14 15 var arr = []; 16 17 function set_fun(value) { 18 arr.setVerifyHelpProp = value; 19 } 20 Object.defineProperty(arr, "property", { 21 set: set_fun, 22 configurable: false 23 }); 24 25 try { 26 Object.defineProperties(arr, { 27 "property": { 28 configurable: true 29 } 30 }); 31 throw new Test262Error("Expected an exception."); 32 } catch (e) { 33 verifyWritable(arr, "property", "setVerifyHelpProp"); 34 35 if (!(e instanceof TypeError)) { 36 throw new Test262Error("Expected TypeError, got " + e); 37 } 38 } 39 40 verifyProperty(arr, "property", { 41 enumerable: false, 42 configurable: false, 43 }); 44 45 reportCompare(0, 0);