LibTest/core/DateTime/subtract_A02_t01.dart

/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion DateTime subtract(Duration other)
 * Throws [Error] if [other] is [:null:].
 * @description Checks that an Error is thrown.
 * @author msyabro
 * @reviewer pagolubev
 * @needsreview undocumented
 */
import "../../../Utils/expect.dart";

 main() {
   DateTime dateTime=new DateTime(2000, 1, 1);
   Expect.throws(() {
     dateTime.subtract(null);
   },
   (e)=>e is Error
   );
 }