LibTest/isolate/Isolate/pauseCapability_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.

/**
 * @assertion Capability pauseCapability
 *    read-only
 *    Capability granting the ability to pause the isolate.
 *    This capability is used by pause. If the capability is not the correct
 * pause capability of the isolate, including if the capability is null,
 * then calls to pause will have no effect.
 *
 * @description Check that pauseCapability is not null, if isolate is started
 * by method spawn() in paused state
 *
 * @author a.semenov@unipro.ru
 */
import "dart:isolate";
import "../../../Utils/expect.dart";

void entryPoint(String message) {
  message.trim(); // just do something
}

test() async {
  Isolate isolate = await Isolate.spawn(entryPoint, "hello", paused:true);
  Expect.isNotNull(isolate.pauseCapability);
  isolate.resume(isolate.pauseCapability!);
  asyncEnd();
}

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