JSTests/test262/test/built-ins/Object/assign/Target-Undefined.js

// 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});});