| // 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 Set<E> toSet() |
| /// The set may contain fewer elements than the iterable, if the iterable |
| /// contains an element more than once, or it contains one or more elements that |
| /// are equal. The order of the elements in the set is not guaranteed to be the |
| /// same as for the iterable. |
| /// @description Checks that proper Set is created. |
| /// @author kaigorodov |
| |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| void checkEquals(Iterable expected, Set actual) { |
| Set set0 = new Set(); |
| for (var el in expected) { |
| set0.add(el); |
| } |
| Expect.isTrue(set0.containsAll(actual)); |
| Expect.isTrue(actual.containsAll(set0)); |
| } |
| |
| main() { |
| DoubleLinkedQueue q = new DoubleLinkedQueue(); |
| Set a = q.toSet(); |
| Expect.equals(0, a.length); |
| Expect.equals(0, q.length); |
| |
| q.addAll([1, "2", "3", "4", "5", "4", 1]); |
| a = q.toSet(); |
| checkEquals(q, a); |
| |
| DoubleLinkedQueue src = new DoubleLinkedQueue.from( |
| [null, [null], [], [1,2,3], [[null]]]); |
| a = src.toSet(); |
| checkEquals(src, a); |
| } |