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// Copyright (c) 2021, 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.
/// @assertion void kill({
/// int priority: BEFORE_NEXT_EVENT
/// })
/// Requests the isolate to shut down.
/// The isolate is requested to terminate itself. The priority argument
/// specifies when this must happen.
/// The priority must be one of IMMEDIATE or BEFORE_NEXT_EVENT. The shutdown
/// is performed at different times depending on the priority:
/// IMMEDIATE: The isolate shuts down as soon as possible. Control messages
/// are handled in order, so all previously sent control events from this
/// isolate will all have been processed. The shutdown should happen no later
/// than if sent with BEFORE_NEXT_EVENT. It may happen earlier if the system
/// has a way to shut down cleanly at an earlier time, even during the
/// execution of another event.
/// BEFORE_NEXT_EVENT: The shutdown is scheduled for the next time control
/// returns to the event loop of the receiving isolate, after the current event,
/// and any already scheduled control events, are completed.
/// @description Check that kill(priority: Isolate.beforeNextEvent) doesn't
/// terminate the continuously running isolate
/// @author
import "dart:isolate";
import "dart:math";
import "../../../Utils/expect.dart";
entryPoint(message) {
Random random = new Random();
int s = 0;
while (true) {
s = -s + random.nextInt(100);
test() async {
ReceivePort onExit = new ReceivePort();
Isolate isolate = await Isolate.spawn(entryPoint, null,
onExit: onExit.sendPort, errorsAreFatal: true);
isolate.kill(priority: Isolate.beforeNextEvent);
onExit.first.timeout(Duration(seconds: 3), onTimeout: () {
// This is expected. Isolate shouldn't get killed
isolate.kill(priority: Isolate.immediate);
return "Timeout";
}).then((v) {
// It there were no timeout then fail
if (v != "Timeout") {"Isolate shouldn't get killed! Actual value ${v}");
main() {