|  | // 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(); | 
|  | bool futureWasExecuted = false; | 
|  | bool future2WasExecuted = false; | 
|  |  | 
|  | // Make sure `catchErrors` never closes its stream. | 
|  | catchErrors(() { | 
|  | new Future(() => 499).then((x) { | 
|  | futureWasExecuted = true; | 
|  | }); | 
|  | scheduleMicrotask(() { | 
|  | new Future(() => 42).then((x) { | 
|  | future2WasExecuted = true; | 
|  | Expect.isTrue(futureWasExecuted); | 
|  | done.complete(true); | 
|  | }); | 
|  | }); | 
|  | return 'allDone'; | 
|  | }).listen((x) { | 
|  | Expect.fail("Unexpected callback"); | 
|  | }, onDone: () { | 
|  | Expect.fail("Unexpected callback"); | 
|  | }); | 
|  | done.future.whenComplete(asyncEnd); | 
|  | } |