15.2.3.6-4-176.js (978B)
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: 15.2.3.6-4-176 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, test the [[Configurable]] attribute of 10 own accessor property with large index named in 'O' that overrides 11 an inherited data property can stop deleting index named 12 properties (15.4.5.1 step 3.l.ii) 13 ---*/ 14 15 var arrObj = [0, 1]; 16 17 assert.throws(TypeError, function() { 18 Object.defineProperty(arrObj, "1", { 19 get: function() { 20 return 2; 21 }, 22 configurable: false 23 }); 24 25 Array.prototype[1] = 2; 26 Object.defineProperty(arrObj, "length", { 27 value: 1 28 }); 29 }); 30 assert.sameValue(arrObj.length, 2, 'arrObj.length'); 31 assert(arrObj.hasOwnProperty("1"), 'arrObj.hasOwnProperty("1") !== true'); 32 33 reportCompare(0, 0);