// Copyright (c) 2011, 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 static void run(void callback())
/// Runs the given callback asynchronously as soon as possible.
/// This function is equivalent to new Timer(Duration.zero, callback).
/// @description Checks that callback function is called asynchronously.
/// @author kaigorodov


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

check(value) {
  var res = value;

  asyncStart();
  Timer.run(() {
    res = null;
    asyncEnd();
  });

  Expect.equals(res, value);
}

main() {
  check(0);
  check(-5);
  check('string');
  check(true);
}