| // 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. |
| |
| /// @assertion abstract E reduce(E combine(E value, E element)) |
| /// The iterable must have at least one element. |
| /// @description Checks that error state exception is thrown if queue is empty. |
| /// @author iarkh@unipro.ru |
| |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| test (combine, element) { |
| return combine + element; |
| } |
| |
| main() { |
| DoubleLinkedQueue queue = new DoubleLinkedQueue(); |
| Expect.throws(() { queue.reduce(test); }, (e) => e is StateError); |
| } |