// Copyright (c) 2017, 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 String message
/// Error message supplied by the operating system. null if no message is
/// associated with the error.
///
/// @description Checks that message gets error message supplied by the operating
/// system. If there is no error message associated with the error returns "".
/// @author ngl@unipro.ru
/// @issue 30698

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

main() {
  OSError error = new OSError();
  String message = error.message;
  Expect.equals("", message);

  error = new OSError("bug");
  message = error.message;
  Expect.equals("bug", message);
}