| // 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 = 2.9 |
| |
| // Dart test program for testing that isolates can spawn other isolates. |
| |
| library NestedSpawnTest; |
| |
| import 'dart:isolate'; |
| import 'package:async_helper/async_helper.dart'; |
| import 'package:expect/expect.dart'; |
| |
| void isolateA(message) { |
| message.add("isolateA"); |
| Isolate.spawn(isolateB, message); |
| } |
| |
| void isolateB(message) { |
| message.add("isolateB"); |
| message[0].send(message); |
| } |
| |
| void main([args, port]) { |
| // spawned isolates can spawn nested isolates |
| ReceivePort port = new ReceivePort(); |
| Isolate.spawn(isolateA, [port.sendPort, "main"]); |
| asyncStart(); |
| port.first.then((message) { |
| Expect.equals("main", message[1]); |
| Expect.equals("isolateA", message[2]); |
| Expect.equals("isolateB", message[3]); |
| asyncEnd(); |
| }); |
| } |