| // 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 The queue must not be empty when this method is called. |
| * @description Checks that exception is thrown if the queue is empty. |
| * @author kaigorodov |
| */ |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| DoubleLinkedQueue queue = new DoubleLinkedQueue(); |
| Expect.throws(() { queue.removeLast(); }, (e) => e is StateError); |
| |
| queue.addLast(1); |
| queue.addLast(2); |
| queue.clear(); |
| |
| Expect.throws(() { queue.removeLast(); }, (e) => e is StateError); |
| } |