| // Copyright (c) 2015, 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 "dart:async"; |
| import "package:expect/expect.dart"; |
| import "package:async_helper/async_helper.dart"; |
| |
| // When an exception is thrown in the finally block cleaning up after a cancel, |
| // the future returned from cancel should complete with an error. |
| |
| foo() async* { |
| try { |
| int i = 0; |
| while (true) { |
| yield i++; |
| } |
| } finally { |
| throw "Error"; |
| } |
| } |
| |
| test() async { |
| var completer = new Completer(); |
| var s; |
| s = foo().listen((e) async { |
| Expect.equals(0, e); |
| try { |
| await s.cancel(); |
| Expect.fail("Did not throw"); |
| } catch (e) { |
| Expect.equals("Error", e); |
| completer.complete(); |
| } |
| }); |
| await completer.future; |
| } |
| |
| main() { |
| asyncStart(); |
| test().then((_) => asyncEnd()); |
| } |