// 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 int operator <<(int shiftAmount)
/// This operator implements bit-wise left-shift operation.
/// @description Uses a negative number as argument.
/// @author vasya

import "../../../Utils/expect.dart";

main() {
  Expect.throws(() {1 << (-1);}, (e) => e is ArgumentError);
}
