LibTest/isolate/Isolate/resume_A03_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.
/// ...
///    The capability must be one returned by a call to pause on this isolate,
/// otherwise the resume call does nothing.
///
/// @description Check that resume(null) does nothing on isolate that is paused
///
/// @author a.semenov@unipro.ru

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

Duration _500MS = new Duration(milliseconds:500);

test() async {
  ReceivePort receivePort = new ReceivePort();
  EchoServer server = await EchoServer.spawn(receivePort.sendPort);

  Expect.equals("hello", await server.ping("hello"));

  server.isolate.pause();
  Expect.equals("timeout", await server.ping("paused", _500MS, "timeout"));

  server.isolate.resume(null);
  Expect.equals("timeout", await server.ping("resume", _500MS, "timeout"));

  await server.kill(priority:Isolate.immediate);
  receivePort.close();
  asyncEnd();
}

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