Akka.TestKit.Tests.TestSchedulerTests.Does_not_deliver_message_prematurely C# (CSharp) Method

        public void Does_not_deliver_message_prematurely()
        {
            _testReceiveActor.Tell(new ScheduleOnceMessage(TimeSpan.FromSeconds(1)));
            Scheduler.Advance(TimeSpan.FromMilliseconds(999));
            ExpectNoMsg(TimeSpan.FromMilliseconds(20));
        }