// 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.

// @dart = 2.9

/// @assertion static void isNull(var actual, [String reason = null])
/// Checks whether [actual] is null.
/// @description Checks that no exception is thrown when the argument is null,
///              regardless of reason (the last argument).
/// @author rodionov
/// @reviewer varlax

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

main() {
  Expect.isNull(null);
  Expect.isNull(null, "");
  Expect.isNull(null, "not empty");
}