| /* |
| * 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 bool every(bool f(E element)) |
| * Checks whether every element of this iterable satisfies [test]. |
| * Checks every element in iteration order, and returns [false] if any of them |
| * make [test] return [false], otherwise returns [true]. |
| * @description Checks that the method returns correct value for various |
| * predicates. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| main() { |
| DoubleLinkedQueue<int> list = new DoubleLinkedQueue<int>(); |
| |
| for(int i = 0; i < 101; i++) { |
| list.addLast(i - 50); |
| } |
| |
| bool res = list.every((int element) { |
| return element > 0; |
| }); |
| Expect.isFalse(res); |
| |
| res = list.every((int element) { |
| return element < 1000; |
| }); |
| Expect.isTrue(res); |
| |
| res = list.every((int element) { |
| return true; |
| }); |
| Expect.isTrue(res); |
| |
| res = list.every((int element) { |
| return false; |
| }); |
| Expect.isFalse(res); |
| } |