blob: e5338954019b35626740d1f3b7640c4fe4e8c459 [file] [log] [blame]
// Copyright (c) 2016, 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.
import 'dart:async';
/// Returns a [Future] that completes after pumping the event queue [times]
/// times.
/// By default, this should pump the event queue enough times to allow any code
/// to run, as long as it's not waiting on some external event.
Future pumpEventQueue([int times = 20]) {
if (times == 0) return new Future.value();
// Use [new Future] future to allow microtask events to finish. The [new
// Future.value] constructor uses scheduleMicrotask itself and would therefore
// not wait for microtask callbacks that are scheduled after invoking this
// method.
return new Future(() => pumpEventQueue(times - 1));