LibTest/isolate/Isolate/resume_A01_t02.dart

// Copyright (c) 2017, 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.

// @dart = 2.9

/// @assertion void resume(
///                    Capability resumeCapability
///                    )
///    Resumes a paused isolate.
///    Sends a message to an isolate requesting that it ends a pause that was
/// requested using the resumeCapability.
///
/// @description Check that event queue is processed after call to resume() on
/// Isolate instance that was started in paused state
///
/// @author a.semenov@unipro.ru

import "dart:isolate";
import "dart:async";
import "../../../Utils/expect.dart";
import "IsolateUtil.dart";


void entryPoint(SendPort sendPort) {
  sendPort.send("hello");
}

test() async {
  bool paused = true;
  ReceivePort receivePort = new ReceivePort();
  receivePort.listen(
    (data){
      Expect.isFalse(paused);
      receivePort.close();
      asyncEnd();
    }
  );
  Isolate isolate = await Isolate.spawn(
                                      entryPoint,
                                      receivePort.sendPort,
                                      paused: true);

  await new Future.delayed(ONE_SECOND);
  paused = false;
  isolate.resume(isolate.pauseCapability);
}

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