Clement Skau
50c68d1f30
This is similar to https://dart-review.googlesource.com/c/sdk/+/108410. Prior to this fix, the test was running at ~3% flaky locally: ~> tools/test.py -n dartk-optcounter-linux-release-x64 lib_2/isolate/spawn_uri_test --repeat=100 Change-Id: I7d6422eaf5e56ec8fbe0c287da12b19bf13716db Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/110913 Commit-Queue: Clement Skau <cskau@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
40 lines
1.3 KiB
Dart
40 lines
1.3 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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// Example of spawning an isolate from a URI
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library spawn_tests;
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import 'dart:isolate';
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import 'package:async_helper/async_minitest.dart';
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main() {
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test('isolate fromUri - send and reply', () async {
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const String debugName = 'spawnedIsolate';
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final exitPort = ReceivePort();
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final port = new ReceivePort();
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port.listen(expectAsync((msg) {
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expect(msg, equals('re: hi'));
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port.close();
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}));
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// Start new isolate; paused so it's alive till we read the debugName.
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// If the isolate runs to completion, the isolate might get cleaned up
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// and debugName might be null.
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final isolate = await Isolate.spawnUri(
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Uri.parse('spawn_uri_child_isolate.dart'), ['hi'], port.sendPort,
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paused: true, debugName: debugName, onExit: exitPort.sendPort);
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expect(isolate.debugName, debugName);
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isolate.resume(isolate.pauseCapability);
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// Explicitly await spawned isolate exit to enforce main isolate not
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// completing (and the stand-alone runtime exiting) before the spawned
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// isolate is done.
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await exitPort.first;
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});
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}
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