|  | // Copyright (c) 2012, 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 test program for testing that isolates are spawned. | 
|  |  | 
|  | library IsolateNegativeTest; | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  | import 'dart:isolate'; | 
|  | import "package:async_helper/async_helper.dart"; | 
|  |  | 
|  | void entry(SendPort replyTo) { | 
|  | var message = "foo"; | 
|  | message = "bar"; // //# 01: runtime error | 
|  | replyTo.send(message); | 
|  | } | 
|  |  | 
|  | main() { | 
|  | asyncStart(); | 
|  | ReceivePort response = new ReceivePort(); | 
|  | Isolate.spawn(entry, response.sendPort); | 
|  | response.first.then((message) { | 
|  | Expect.equals("foo", message); | 
|  | asyncEnd(); | 
|  | }); | 
|  | } |