15.2.3.6-4-148.js (931B)
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: 15.2.3.6-4-148 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is the length 8 property of 'O', test the [[Value]] field of 'desc' is an Object 9 which has an own valueOf method that returns an object and 10 toString method that returns a string (15.4.5.1 step 3.c) 11 ---*/ 12 13 var arrObj = []; 14 var toStringAccessed = false; 15 var valueOfAccessed = false; 16 17 Object.defineProperty(arrObj, "length", { 18 value: { 19 toString: function() { 20 toStringAccessed = true; 21 return '2'; 22 }, 23 24 valueOf: function() { 25 valueOfAccessed = true; 26 return {}; 27 } 28 } 29 }); 30 31 assert.sameValue(arrObj.length, 2, 'arrObj.length'); 32 assert(toStringAccessed, 'toStringAccessed !== true'); 33 assert(valueOfAccessed, 'valueOfAccessed !== true'); 34 35 reportCompare(0, 0);