| // 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 StreamController.broadcast({void onListen(), void onCancel(), |
| /// bool sync: false}) |
| /// The controller does not have any internal queue of events, and if there |
| /// are no listeners at the time the event is added, it will just be dropped, |
| /// or, if it is an error, be reported as uncaught. |
| /// |
| /// @description Checks that data events are dropped if there are no listeners. |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| StreamController controller = new StreamController.broadcast(); |
| controller.add("lost"); |
| controller.add("event"); |
| asyncStart(); |
| List receivedData = []; |
| controller.stream.listen( |
| (data) => receivedData.add(data), |
| onDone: () { |
| Expect.listEquals(["published", "event"], receivedData); |
| asyncEnd(); |
| } |
| ); |
| controller.add("published"); |
| controller.add("event"); |
| controller.close(); |
| } |