| // 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(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 = 42; |
| asyncStart(); |
| Future<int> i = new Future(() { |
| new Future.delayed(new Duration(seconds: 1)).then((_) { |
| x = 1; |
| asyncEnd(); |
| return 0; |
| }); |
| return 2; |
| }); |
| Expect.equals(42, x); |
| } |