15.2.3.6-4-170.js (976B)
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: 15.2.3.6-4-170 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is the length 8 property of 'O', the [[Value]] field of 'desc' is less than value 9 of the length property and also lesser than an index of the array 10 which is set to configurable: false, test that new length is set 11 to a value greater than the non-deletable index by 1, writable 12 attribute of length is set to false and TypeError exception is 13 thrown (15.4.5.1 step 3.l.ii) 14 ---*/ 15 16 var arrObj = [0, 1]; 17 assert.throws(TypeError, function() { 18 Object.defineProperty(arrObj, "1", { 19 configurable: false 20 }); 21 22 Object.defineProperty(arrObj, "length", { 23 value: 1 24 }); 25 }); 26 assert.sameValue(arrObj.length, 2, 'arrObj.length'); 27 assert(arrObj.hasOwnProperty("1"), 'arrObj.hasOwnProperty("1") !== true'); 28 29 reportCompare(0, 0);