| // Copyright (c) 2013, 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 [HasNextIterator] class wraps an [Iterator] and provides |
| * methods to iterate over an object using [hasNext] and [next]. |
| * @description Checks that created object works as specified. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| void check (Iterable list) { |
| HasNextIterator hnit = new HasNextIterator(list.iterator); |
| Iterator it = list.iterator; |
| for (;;) { |
| bool hNext = hnit.hasNext; |
| bool mNext = it.moveNext(); |
| Expect.equals(hNext, mNext); |
| if (!mNext) { |
| break; |
| } |
| Expect.equals(it.current, hnit.next()); |
| } |
| } |
| |
| main() { |
| check([]); |
| check([1, 2, 3, 4, 0, 9, -1]); |
| check(new Iterable.generate(0, (int index) => index * 5)); |
| check(new Iterable.generate(100, (int index) => index * 5)); |
| } |