| // 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<T> reduce(T combine(T previous, T element)) |
| * Reduces a sequence of values by repeatedly applying combine. |
| * @description Checks that if the stream contains no elements, the combine |
| * method is not called and the future returns an error. |
| * @note undocumented |
| * @author kaigorodov |
| */ |
| library reduce_A01_t03; |
| import "../../../Utils/expect.dart"; |
| |
| void test(CreateStreamFunction create) { |
| AsyncExpect.error((e) => e is Error, create([]).reduce((p,e) => 0)); |
| } |