| // 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:expect/expect.dart'; |
| import 'package:async_helper/async_helper.dart'; |
| import 'dart:async'; |
| |
| StackTrace captureStackTrace() { |
| try { |
| throw 0; |
| } catch (e, st) { |
| return st; |
| } |
| } |
| |
| main() { |
| Completer completer = new Completer(); |
| StackTrace trace = captureStackTrace(); |
| asyncStart(); |
| completer.future.whenComplete(() => 499).then((_) { |
| throw "should never be reached"; |
| }).catchError((e, st) { |
| Expect.equals("c-error", e); |
| Expect.identical(trace, st); |
| // Test the rethrowing the same error keeps the stack trace. |
| throw e; |
| }).catchError((e, st) { |
| Expect.equals("c-error", e); |
| Expect.identical(trace, st); |
| asyncEnd(); |
| }); |
| completer.completeError("c-error", trace); |
| } |