15.2.3.7-6-a-245.js (1105B)
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-245 6 description: > 7 Object.defineProperties - TypeError is thrown if 'O' is an Array, 8 'P' is an array index named property that already exists on 'O' is 9 accessor property with [[Configurable]] false, 'desc' is accessor 10 descriptor, the [[Get]] field of 'desc' is present, and the 11 [[Get]] field of 'desc' is an object and the [[Get]] attribute 12 value of 'P' is undefined (15.4.5.1 step 4.c) 13 includes: [propertyHelper.js] 14 ---*/ 15 16 var arr = []; 17 18 function get_fun() { 19 return 36; 20 } 21 Object.defineProperty(arr, "1", { 22 get: get_fun 23 }); 24 25 try { 26 Object.defineProperties(arr, { 27 "1": { 28 get: undefined 29 } 30 }); 31 throw new Test262Error("Expected an exception."); 32 } catch (e) { 33 verifyEqualTo(arr, "1", get_fun()); 34 35 if (!(e instanceof TypeError)) { 36 throw new Test262Error("Expected TypeError, got " + e); 37 } 38 } 39 40 verifyProperty(arr, "1", { 41 enumerable: false, 42 configurable: false, 43 }); 44 45 reportCompare(0, 0);