JSTests/test262/test/built-ins/Object/keys/15.2.3.14-1-5.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.2.3.14-1-5
description: >
    Object.keys throws TypeError if type of first param is not Object
    (undefined)
---*/


assert.throws(TypeError, function() {
  Object.keys(undefined);
});