| // Copyright (c) 2017, 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 Iterator<E> iterator |
| /// ... |
| /// Each time iterator is read, it returns a new iterator, which can be used to |
| /// iterate through all the elements again. The iterators of the same iterable |
| /// can be stepped through independently, but should return the same elements in |
| /// the same order, as long as the underlying collection isn't changed. |
| /// @description Checks that every iterator of the same iterable should return |
| /// the same element in the same order. |
| /// @author ngl@unipro.ru |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| void checkIterator(List<int> list) { |
| var l = new Int16List.fromList(list); |
| var it1 = l.iterator; |
| var it2 = l.iterator; |
| var i = 0; |
| for (i = 0; i < list.length; ++i) { |
| it1.moveNext(); |
| it2.moveNext(); |
| Expect.equals(it1.current, it2.current); |
| } |
| } |
| |
| main() { |
| checkIterator([]); |
| checkIterator([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| |
| var a = new List<int>(255); |
| for (var i = 0; i < a.length; i++) { |
| a[i] = i; |
| } |
| checkIterator(a); |
| } |