Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
34 lines
1.0 KiB
Dart
34 lines
1.0 KiB
Dart
|
|
// @dart = 2.9
|
|
library async_cancellingisolate;
|
|
|
|
import 'dart:async';
|
|
import 'package:expect/minitest.dart';
|
|
|
|
main(message, replyTo) {
|
|
var command = message.first;
|
|
expect(command, 'START');
|
|
var shot = false;
|
|
var oneshot;
|
|
var periodic;
|
|
periodic = new Timer.periodic(const Duration(milliseconds: 10), (timer) {
|
|
expect(shot, isFalse);
|
|
shot = true;
|
|
expect(timer, same(periodic));
|
|
periodic.cancel();
|
|
oneshot.cancel();
|
|
// Wait some more time to be sure callbacks won't be invoked any
|
|
// more.
|
|
new Timer(const Duration(milliseconds: 50), () {
|
|
replyTo.send('DONE');
|
|
});
|
|
});
|
|
// We launch the oneshot timer after the periodic timer. Otherwise a
|
|
// (very long) context switch could make this test flaky: assume the
|
|
// oneshot timer is created first and then there is a 30ms context switch.
|
|
// when the periodic timer is scheduled it would execute after the oneshot.
|
|
oneshot = new Timer(const Duration(milliseconds: 30), () {
|
|
fail('Should never be invoked');
|
|
});
|
|
}
|