| // 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. |
| |
| /// @assertion LinkedHashSet<E> class implements Set<E> |
| /// Iteration of elements is done in element insertion order. An element that was |
| /// added after another will occur later in the iteration. Adding an element that |
| /// is already in the set does not change its position in the iteration order. |
| /// @author iarkh@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| checkOrder(LinkedHashSet set, List list) { |
| Expect.equals(list.length, set.length); |
| for(int i = 0; i < list.length; i++) { |
| Expect.equals(list[i], set.elementAt(i)); |
| } |
| } |
| |
| main() { |
| LinkedHashSet set = new LinkedHashSet(); |
| List list = []; |
| |
| for (int i = 0; i < 100; i++) { |
| set.add(i); |
| list.add(i); |
| } |
| |
| set.add(13); |
| checkOrder(set, list); |
| |
| set.add(22); |
| checkOrder(set, list); |
| |
| for (int i = 0; i < 100; i++) { |
| set.add(i); |
| checkOrder(set, list); |
| } |
| |
| for (int i = 99; i >= 0; i--) { |
| set.add(i); |
| checkOrder(set, list); |
| } |
| } |