| // 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.delayed(Duration duration, [dynamic computation()]) |
| /// Creates a future that runs its computation after a delay. |
| /// The computation will be executed after the given duration has passed, and |
| /// the future is completed with the result. If the duration is 0 or less, it |
| /// completes no sooner than in the next event-loop iteration. |
| /// @description Checks that execution of the supplied computation() function |
| /// happens after delay. |
| /// @author kaigorodov |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| check(delayms, value) { |
| Duration delay = durationInMilliseconds(delayms); |
| Stopwatch sw = new Stopwatch(); |
| asyncStart(); |
| sw.start(); |
| new Future.delayed(delay, () { |
| Duration elapsed = sw.elapsed; |
| Expect.isTrue(elapsed >= delay, "delay=$delay, elapsed=${elapsed}"); |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| check(0, 11); |
| check(300, 3); |
| check(50, 22); |
| } |