| // 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}) |
| /// If a listener is added again later, after the onCancel was called, the |
| /// onListen will be called again. |
| /// |
| /// @description Checks that if a listener is added again later, after the |
| /// onCancel was called, the onListen will be called again. |
| /// @author kaigorodov |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| bool onListenCalled = false; |
| bool onCancelCalled = false; |
| asyncMultiStart(4); |
| |
| StreamController controller = new StreamController.broadcast( |
| onListen: () { |
| onListenCalled = true; |
| asyncEnd(); |
| }, |
| onCancel: () { |
| onCancelCalled = true; |
| asyncEnd(); |
| } |
| ); |
| Stream stream = controller.stream; |
| |
| Expect.isFalse(onListenCalled); |
| StreamSubscription subs = stream.listen((event){}); |
| Expect.isTrue(onListenCalled); |
| |
| subs.cancel(); |
| Expect.isTrue(onCancelCalled); |
| |
| onListenCalled = false; |
| subs=stream.listen((event) {}); |
| Expect.isTrue(onListenCalled); |
| |
| controller.close(); |
| } |
| |