| // Copyright (c) 2013, 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. |
| |
| // @dart = 2.9 |
| |
| import 'package:async_helper/async_helper.dart'; |
| import "package:expect/expect.dart"; |
| import 'dart:async'; |
| import 'catch_errors.dart'; |
| |
| main() { |
| asyncStart(); |
| Completer done = new Completer(); |
| |
| var events = []; |
| Stream stream = |
| new Stream.periodic(const Duration(milliseconds: 20), (x) => x); |
| // Test that errors of periodic streams are caught. |
| catchErrors(() { |
| var subscription; |
| subscription = stream.listen((x) { |
| if (x == 5) { |
| events.add("cancel"); |
| subscription.cancel(); |
| done.complete(true); |
| return; |
| } |
| events.add(x); |
| }); |
| }).listen((x) { |
| events.add("outer: $x"); |
| }, onDone: () { |
| Expect.fail("Unexpected callback"); |
| }); |
| |
| done.future.whenComplete(() { |
| // Give handlers time to run. |
| Timer.run(() { |
| Expect.listEquals([0, 1, 2, 3, 4, "cancel"], events); |
| asyncEnd(); |
| }); |
| }); |
| } |