// Copyright (c) 2016, 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 void insertBefore(E entry)
/// ...
/// This entry must be in a linked list when this method is called. The [entry]
/// must not be in a linked list.
/// @description Checks that this entry must be in a linked list when this method
/// is called
/// @author sgrekhov@unipro.ru

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

main() {
  MyLinkedListEntry<int> entry1 = new MyLinkedListEntry<int>(1);
  MyLinkedListEntry<int> entry2 = new MyLinkedListEntry<int>(2);
  Expect.throws(() {entry1.insertBefore(entry2);});
}