| // 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 final int elapsedMicroseconds # |
| /// Returns the [elapsed] counter converted to microseconds. |
| /// @description Checks that the proportion between values returned by elapsed() |
| /// and this method is correct and that this value is never negative. Checks |
| /// several successive different values returned by elapsedInUs(). |
| /// @author kaigorodov |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| Duration delay = durationMs(10); |
| Stopwatch sw = new Stopwatch(); |
| int count = 5; |
| |
| void check() { |
| Expect.equals(sw.elapsed.inMicroseconds, sw.elapsedMicroseconds); |
| } |
| |
| main() { |
| check(); |
| sw.start(); |
| asyncStart(); |
| new Timer(delay, proc1); |
| } |
| |
| void proc1() { |
| sw.stop(); |
| check(); |
| if (count == 0) { |
| asyncEnd(); |
| return; |
| } |
| count--; |
| sw.start(); |
| new Timer(delay, proc1); |
| } |