| // 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 Stream<T> distinct([bool equals(T previous, T next)]) |
| /// The returned stream is a broadcast stream if this stream is. |
| /// |
| /// @description Checks that the returned stream is a broadcast stream |
| /// if source stream is. [equals] is omitted |
| /// @author a.semenov@unipro.ru |
| |
| library distinct_A02_t01; |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| void check<T>(Stream<T> stream) { |
| Expect.equals(stream.isBroadcast, stream.distinct().isBroadcast); |
| } |
| |
| void test(CreateStreamFunction create) { |
| check(create([])); |
| check(create([]).asBroadcastStream()); |
| |
| check(create([1, 2, 3, 4, 5])); |
| check(create([1, 2, 3, 4, 5]).asBroadcastStream()); |
| |
| check(create(["a", "b", "c"])); |
| check(create(["a", "b", "c"]).asBroadcastStream()); |
| } |