// 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 void Function(T1, T2) bindBinaryCallbackGuarded<T1, T2>(
///                void callback(T1 argument1,T2 argument2)
///            )
/// Registers the provided callback and returns a function that will execute
/// in this zone.
/// Equivalent to:
///    ZoneCallback registered = registerBinaryCallback(callback);
///    return (arg1, arg2) => this.runBinaryGuarded(registered, arg1, arg2);
/// @description Checks that [callback] is run in the zone it was bound to.
/// @author a.semenov@unipro.ru


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

main() {
  Zone zone = Zone.current;
  Zone callbackZone = null;
  void callback(int x, int y) {
    callbackZone = Zone.current;
  }

  void Function(int, int) boundCallback =
                  zone.bindBinaryCallbackGuarded<int, int>(callback);

  runZoned(() {
    boundCallback(1,2);
  });
  Expect.equals(zone, callbackZone);
}