| // 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 every() on empty list returns true. |
| /// @author kaigorodov |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| main() { |
| DoubleLinkedQueue list = new DoubleLinkedQueue(); |
| |
| int count = 0; |
| bool res = list.every((var element) { |
| count++; |
| return false; |
| }); |
| |
| Expect.isTrue(count == 0); |
| Expect.isTrue(res == true); |
| } |