| // 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 final _DoubleLinkedQueueIterator<E> iterator |
| /// Returns an [Iterator] that iterates over this Iterable object. |
| /// @description Checks that correctly typed [Iterator] is returned. |
| /// @author kaigorodov |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| class A { |
| A() {} |
| } |
| |
| main() { |
| Queue list = new DoubleLinkedQueue(); |
| Expect.isTrue(list.iterator is Iterator); |
| Expect.runtimeIsType<Iterator>(list.iterator); |
| |
| list = new DoubleLinkedQueue.from([null]); |
| Expect.isTrue(list.iterator is Iterator); |
| Expect.runtimeIsType<Iterator>(list.iterator); |
| |
| list = new DoubleLinkedQueue.from([[]]); |
| Expect.isTrue(list.iterator is Iterator); |
| Expect.runtimeIsType<Iterator>(list.iterator); |
| |
| list = new DoubleLinkedQueue<int>(); |
| Expect.isTrue(list.iterator is Iterator<int>); |
| Expect.isFalse(list.iterator is Iterator<bool>); |
| Expect.isFalse(list.iterator is Iterator<String>); |
| Expect.runtimeIsType<Iterator<int>>(list.iterator); |
| Expect.runtimeIsNotType<Iterator<bool>>(list.iterator); |
| Expect.runtimeIsNotType<Iterator<String>>(list.iterator); |
| |
| list = new DoubleLinkedQueue<bool>(); |
| Expect.isTrue(list.iterator is Iterator<bool>); |
| Expect.runtimeIsType<Iterator<bool>>(list.iterator); |
| |
| list = new DoubleLinkedQueue<A>(); |
| Expect.isTrue(list.iterator is Iterator<A>); |
| Expect.runtimeIsType<Iterator<A>>(list.iterator); |
| } |