| // Copyright (c) 2016, 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 any(bool f(E element)) |
| /// Checks whether any [element] of this iterable satisfies [test]. |
| /// Checks every [element] in iteration order, and returns [true] if any of them |
| /// make [test] return [true], otherwise returns [false]. |
| /// @description Checks the [Iterable] which contains all the elements with the |
| /// same value. |
| /// @author iarkh@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| class TestIterator implements Iterator<int> { |
| int limit = 0; |
| int _current = 0; |
| |
| TestIterator(this.limit); |
| |
| bool moveNext() { |
| if (_current < limit) { |
| _current++; |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| get current => 15; |
| } |
| |
| class MyIterable extends Object with IterableMixin { |
| int _limit; |
| MyIterable(this._limit); |
| Iterator get iterator { |
| return new TestIterator(_limit); |
| } |
| } |
| |
| main() { |
| Expect.isTrue(new MyIterable(1).any((e) => e == 15)); |
| Expect.isTrue(new MyIterable(100).any((e) => e == 15)); |
| Expect.isFalse(new MyIterable(1).any((e) => e == 123)); |
| } |