/// Copyright (c) 2012 Ecma International. All rights reserved. /// Ecma International makes this code available under the terms and conditions set /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the /// "Use Terms"). Any redistribution of this code must retain the above /// copyright and this notice and otherwise comply with the Use Terms. /** * @path ch15/15.4/15.4.4/15.4.4.19/15.4.4.19-3-22.js * @description Array.prototype.map throws TypeError exception when 'length' is an object with toString and valueOf methods that don�t return primitive values */ function testcase() { function callbackfn(val, idx, obj) { return val > 10; } var obj = { 1: 11, 2: 12, length: { valueOf: function () { return {}; }, toString: function () { return {}; } } }; try { Array.prototype.map.call(obj, callbackfn); return false; } catch (ex) { return ex instanceof TypeError; } } runTestCase(testcase);