// 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 R run<R>(R action())
///    Executes action in this zone.
///    By default (as implemented in the ROOT zone), runs action with current
/// set to this zone.
///    If action throws, the synchronous exception is not caught by the zone's
/// error handler. Use runGuarded to achieve that.
///    Since the root zone is the only zone that can modify the value of current,
/// custom zones intercepting run should always delegate to their parent zone.
/// They may take actions before and after the call.
/// @description Checks that [action] is run in this zone and that [action]
/// result is returned.
/// @author ilya


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

void test(Zone zone) {
  int result = zone.run<int>(() {
    Expect.equals(zone, Zone.current);
    return 1;
  });

  Expect.equals(1, result);
}

main() {
  test(Zone.current);
  test(Zone.current.fork());
}