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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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