// Copyright 2015 Microsoft Corporation. All rights reserved.
// This code is governed by the license found in the LICENSE file.

/*---
description: >
  Test the first argument(target) of Object.Assign(target,...sources),
  if target is Undefined,Should Throw a TypeError exception.
es6id:  19.1.2.1.1
---*/

assert.throws(TypeError, function() {
  Object.assign(undefined, {
    a: 1
  });
});