/// 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. /** * Let 'x' be the return value from getPrototypeOf when called on d. * Then, x.isPrototypeOf(d) must be true. * * @path ch15/15.2/15.2.3/15.2.3.2/15.2.3.2-2-2.js * @description Object.getPrototypeOf returns the [[Prototype]] of its parameter (custom object) */ function testcase() { function base() {} function derived() {} derived.prototype = new base(); var d = new derived(); var x = Object.getPrototypeOf(d); if (x.isPrototypeOf(d) === true) { return true; } } runTestCase(testcase);