asiva
c559da805a
Migrate tests to be null safe. Change-Id: I29900379cb848a5acf01fceba6856f6233931099 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140162 Commit-Queue: Siva Annamalai <asiva@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com>
80 lines
2.3 KiB
Dart
80 lines
2.3 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// VMOptions=--enable-isolate-groups
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// VMOptions=--no-enable-isolate-groups
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// Dart test program for testing that isolates can spawn other isolates and
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// that the nested isolates can communicate with the main once the spawner has
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// disappeared.
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library NestedSpawn2Test;
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import 'dart:isolate';
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import 'package:async_helper/async_helper.dart';
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import 'package:expect/expect.dart';
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void isolateA(SendPort init) {
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ReceivePort port = new ReceivePort();
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init.send(port.sendPort);
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port.first.then((message) {
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Expect.equals(message[0], "launch nested!");
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SendPort replyTo = message[1];
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Isolate.spawn(isolateB, replyTo);
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});
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}
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String msg0 = "0 there?";
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String msg1 = "1 Yes.";
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String msg2 = "2 great. Think the other one is already dead?";
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String msg3 = "3 Give him some time.";
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String msg4 = "4 now?";
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String msg5 = "5 Now.";
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String msg6 = "6 Great. Bye";
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void _call(SendPort p, msg, void onreceive(m, replyTo)) {
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final replyTo = new ReceivePort();
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p.send([msg, replyTo.sendPort]);
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replyTo.first.then((m) {
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onreceive(m[0], m[1]);
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});
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}
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void isolateB(SendPort mainPort) {
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// Do a little ping-pong dance to give the intermediate isolate
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// time to die.
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_call(mainPort, msg0, ((msg, replyTo) {
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Expect.equals(msg[0], "1");
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_call(replyTo, msg2, ((msg, replyTo) {
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Expect.equals(msg[0], "3");
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_call(replyTo, msg4, ((msg, replyTo) {
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Expect.equals(msg[0], "5");
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replyTo.send([msg6, null]);
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}));
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}));
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}));
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}
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void main([args, port]) {
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// spawned isolate can spawn other isolates
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ReceivePort init = new ReceivePort();
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Isolate.spawn(isolateA, init.sendPort);
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asyncStart();
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init.first.then((port) {
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_call(port, "launch nested!", (msg, replyTo) {
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Expect.equals(msg[0], "0");
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_call(replyTo, msg1, (msg, replyTo) {
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Expect.equals(msg[0], "2");
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_call(replyTo, msg3, (msg, replyTo) {
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Expect.equals(msg[0], "4");
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_call(replyTo, msg5, (msg, _) {
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Expect.equals(msg[0], "6");
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asyncEnd();
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});
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});
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});
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});
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});
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}
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