|  | // 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. | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  | import "package:async_helper/async_helper.dart"; | 
|  |  | 
|  | foo() async { | 
|  | throw 42; | 
|  | } | 
|  |  | 
|  | test() async { | 
|  | var exception; | 
|  | try { | 
|  | await foo(); | 
|  | } catch (e) { | 
|  | print(await (e)); | 
|  | await (exception = await e); | 
|  | } | 
|  | Expect.equals(42, exception); | 
|  | } | 
|  |  | 
|  | main() { | 
|  | asyncStart(); | 
|  | test().then((_) => asyncEnd()); | 
|  | } |