// 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 void add(E value)
/// Adds [value] at the end of the queue.
/// @description Checks that [value] is added to the end of the queue and length
/// is extended by one.
/// @author kaigorodov

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

main() {
  DoubleLinkedQueue queue = new DoubleLinkedQueue();
  for (var i = 0; i <= 10000; i++) {
    queue.add(i);
    Expect.equals(i, queue.last);
    Expect.equals(i + 1, queue.length);
  }
}