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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 // spawns multiple isolates and sends unresolved ports between them. | |
6 #library('unresolved_ports'); | |
7 #import('dart:isolate'); | |
8 #import('../../../lib/unittest/unittest.dart'); | |
9 | |
10 // This test does the following: | |
11 // - main spawns two isolates: 'tim' and 'beth' | |
12 // - 'tim' spawns an isolate: 'bob' | |
13 // - main starts a message chain: | |
14 // main -> beth -> tim -> bob -> main | |
15 // by giving 'beth' a send-port to 'tim'. | |
16 | |
17 bethIsolate() { | |
18 port.receive((msg, reply) => msg[1].send( | |
19 '${msg[0]}\nBeth says: Tim are you coming? And Bob?', reply)); | |
20 } | |
21 | |
22 timIsolate() { | |
23 SendPort bob = spawnFunction(bobIsolate); | |
24 port.receive((msg, reply) => bob.send( | |
25 '$msg\nTim says: Can you tell "main" that we are all coming?', reply)); | |
26 } | |
27 | |
28 bobIsolate() { | |
29 port.receive((msg, reply) => reply.send( | |
30 '$msg\nBob says: we are all coming!')); | |
31 } | |
32 | |
33 main() { | |
34 test('Message chain with unresolved ports', () { | |
35 ReceivePort port = new ReceivePort(); | |
36 port.receive(expectAsync2((msg, _) { | |
37 expect(msg).equals('main says: Beth, find out if Tim is coming.' | |
38 + '\nBeth says: Tim are you coming? And Bob?' | |
39 + '\nTim says: Can you tell "main" that we are all coming?' | |
40 + '\nBob says: we are all coming!'); | |
41 port.close(); | |
42 })); | |
43 | |
44 SendPort tim = spawnFunction(timIsolate); | |
45 SendPort beth = spawnFunction(bethIsolate); | |
46 | |
47 beth.send( | |
48 // because tim is created asynchronously, here we are sending an | |
49 // unresolved port: | |
50 ['main says: Beth, find out if Tim is coming.', tim], | |
51 port.toSendPort()); | |
52 }); | |
53 } | |
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