blob: 4ecd9cd3635bdd79ce82758b29fb1b6967999eab [file] [log] [blame]
// Copyright (c) 2017, 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.
// @dart = 2.9
import 'dart:async';
import 'dart:cli';
import 'package:async_helper/async_helper.dart';
import 'package:expect/expect.dart';
import 'wait_for_event_helper.dart';
// Tests that waitForEvent() drains microtasks before blocking even when
// called from a microtask.
main() {
initWaitForEvent();
asyncStart();
bool flag1 = false;
bool flag2 = false;
scheduleMicrotask(() {
scheduleMicrotask(() {
flag1 = true;
asyncEnd();
});
Expect.isFalse(flag1);
waitForEvent(timeout: const Duration(milliseconds: 10));
Expect.isTrue(flag1);
flag2 = true;
});
Expect.isFalse(flag1);
Expect.isFalse(flag2);
waitForEvent(timeout: const Duration(milliseconds: 10));
Expect.isTrue(flag1);
Expect.isTrue(flag2);
}