LibTest/async/Future/Future_A01_t01.dart

// 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 Future(dynamic computation())
/// Creates a future containing the result of calling computation
/// asynchronously with Timer.run.
/// If the result of executing computation throws, the returned future is
/// completed with the error.
/// If the returned value is itself a Future, completion of the created
/// future will wait until the returned future completes, and will then
/// complete with the same result.
/// If a non-future value is returned, the returned future is completed with
/// that value.
/// @description Checks that computation() is run asynchronously.
/// @author ilya

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

main() {
  var x;
  Future<Future<Future<int>>> i = new Future(() => x);
  //FutureOr<Future<int>> ii = 11;
  Expect.isNull(x);
}