LibTest/isolate/Isolate/addOnExitListener_A04_t01.dart

// Copyright (c) 2016, 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 addOnExitListener(
 *                    SendPort responsePort, {
 *                    Object response
 *            })
 * ...
 * The response object must follow the same restrictions as enforced by
 * SendPort.send. It is recommended to only use simple values that can be sent
 * to all isolates, like null, booleans, numbers or strings
 *
 * @description Check that if response cannot be sent to the isolate, then
 * an error occurs
 *
 * @issue #28094
 * @author a.semenov@unipro.ru
 */
import "dart:isolate";
import "dart:async";
import "../../../Utils/expect.dart";
import "IsolateUtil.dart";

test() async {
  ErrorServer server = await ErrorServer.spawn(errorsAreFatal: false);
  ReceivePort onExit = new ReceivePort();
  int eventsCount = 0;
  onExit.listen(
    (_) {
      eventsCount++;
    }
  );
  Expect.throws(() {
    server.isolate.addOnExitListener(onExit.sendPort, response: onExit);
  });
  server.requestStop();
  await new Future.delayed(TWO_SECONDS);
  onExit.close();
  Expect.equals(0, eventsCount);
  asyncEnd();
}

main() {
  asyncStart();
  test();
}