LibTest/isolate/Isolate/spawn_A03_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 If the paused parameter is set to true, the isolate will start up
/// in a paused state, as if by an initial call of
/// isolate.pause(isolate.pauseCapability). To resume the isolate,
/// call isolate.resume(isolate.pauseCapability).
///
/// @description Check that paused parameter with value true cause isolate to
/// start up in a paused state, i.e. isolate entry function is not executed
///
/// @author a.semenov@unipro.ru

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

void entryPoint(SendPort sendPort) {
  sendPort.send("hello"); // should not be executed
}

test() async {
  bool testPassed = true;
  ReceivePort receivePort = new ReceivePort();
  receivePort.listen((_) => testPassed = false);
  await Isolate.spawn(entryPoint, receivePort.sendPort, paused: true);
  await new Future.delayed(new Duration(seconds:2));
  if (testPassed){
    asyncEnd();
  }
  receivePort.close();
}

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