| /* |
| * 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 Future<bool> any(bool test(T element)) |
| * Checks whether test accepts any element provided by this stream. |
| * Completes the Future when the answer is known. |
| * @description Checks that correct answer is passed to the future. |
| * @author kaigorodov |
| */ |
| |
| import "dart:async"; |
| import "../../../Utils/async_utils.dart"; |
| import "../../../Utils/expect.dart"; |
| |
| check(Iterable<int> data, bool test(int element), bool expected) { |
| Stream s=new Stream.fromIterable(data); |
| asyncStart(); |
| s.any(test).then((bool actual){ |
| Expect.equals(expected, actual); |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| check([], (int element)=>true, false); |
| check([1,2,3], (int element)=>element==null, false); |
| check([1,2,3,null], (int element)=>element==null, true); |
| check(new Iterable.generate(0, (int index)=>index*2), (int element)=>true, false); |
| check(new Iterable.generate(10, (int index)=>index*5), (int element)=>element==30, true); |
| } |