LibTest/isolate/Isolate/resume_A03_t03.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 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 {
  ReceivePort receivePort = new ReceivePort();
  Future<Object> receiveFuture = receivePort.first;
  Isolate isolate = await Isolate.spawn(
                                      entryPoint,
                                      receivePort.sendPort,
                                      paused: true);
  isolate.resume(null);
  Expect.equals("timeout", await receiveFuture.timeout(ONE_SECOND,
                                                      onTimeout:()=>"timeout"));
  receivePort.close();
  asyncEnd();
}

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