| // 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 factory StreamController.broadcast({void onListen(), |
| /// void onCancel(), bool sync: false}) |
| /// It is not allowed to call add, addError, or close before a previous call has |
| /// returned. |
| /// @description Checks that it is not allowed to call add, addError or close |
| /// before a previous call has returned. |
| /// @needsreview Will only work if events for sync:true are indeed delivered |
| /// synchronously. The doc states that they _may be_ passed directly. |
| /// @author ilya |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var c = new StreamController.broadcast(sync: true); |
| |
| c.stream.listen((_) { |
| Expect.throws(() => c.add(2)); |
| Expect.throws(() => c.addError(2)); |
| Expect.throws(() => c.close()); |
| }, onError: (_) { |
| Expect.throws(() => c.add(2)); |
| Expect.throws(() => c.addError(2)); |
| Expect.throws(() => c.close()); |
| }, onDone: () { |
| c.close(); |
| }); |
| |
| c.add(1); |
| c.addError(1); |
| c.close(); |
| } |