| // 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. |
| |
| /// @assertion Future.sync(dynamic computation()) |
| /// Creates a future containing the result of immediately calling computation. |
| /// If calling computation throws, the returned future is completed with the |
| /// error. |
| /// If calling computation returns a Future, completion of the created future |
| /// will wait until the returned future completes, and will then complete with |
| /// the same result. |
| /// If calling computation returns a non-future value, the returned future is |
| /// completed with that value. |
| /// @description Checks that a future created with constructor |
| /// Future.sync has the value of immediately calling computation. |
| /// @author kaigorodov |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| check(value) { |
| asyncStart(); |
| Future future = new Future.sync(() => value); |
| |
| future.then((fValue) { |
| Expect.equals(fValue, value); |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| check(0); |
| check(1); |
| check(-5); |
| check(''); |
| check('string'); |
| check(null); |
| check(true); |
| check(const []); |
| check(const {'k1': 1, 'k2': 2}); |
| } |