Better FSM spec for Akka.NET

MoodActor.cs

using System;
using Akka.Event;

namespace AkkaTestDemo
{
	public enum MoodStates
	{
		Neutral,
		Happy,
		Angry
	}

	public interface MoodData	{	}


	public class MoodActor : ExtendedFSM<MoodStates, MoodData>
	{
		public MoodActor()
		{
			StartWith(MoodStates.Neutral, null);


			InState(MoodStates.Neutral)
				.OnMessage<string>(s => (string)s.FsmEvent == "Mood?")
				.StayWithReply("I'm neutral")

				.OnMessage<string>(s => (string)s.FsmEvent == "Happy")
				.Goto(MoodStates.Happy)

				.OnMessage<string>(s => (string)s.FsmEvent == "Angry")
				.Goto(MoodStates.Angry);



			InState(MoodStates.Happy)
				.OnMessage<string>(s => (string)s.FsmEvent == "Mood?")
				.StayWithReply("I'm happy")

				.OnMessage<string>(s => (string)s.FsmEvent == "Happy")
				.Stay()

				.OnMessage<string>(s => (string)s.FsmEvent == "Angry")
				.Goto(MoodStates.Angry);



			InState(MoodStates.Angry, timeout: TimeSpan.FromSeconds(1))
				.OnMessage<string>(s => (string)s.FsmEvent == "Mood?")
				.StayWithReply("I'm ANGRY!!!!")

				.OnMessage<string>(s => (string)s.FsmEvent == "Happy")
				.Goto(MoodStates.Happy)

				.OnMessage<string>(s => (string)s.FsmEvent == "Angry")
				.Stay()

				.OnTimeout()
				.Goto(MoodStates.Neutral);

			var logger = Logging.GetLogger(Context);


			OnTransitionTo(MoodStates.Angry, from =>
			{
				logger.Info("Oh, I was so " + from + " and then someone made me angry!");
			});

			OnTransition(MoodStates.Angry, MoodStates.Neutral, () =>
			{
				logger.Info("Snapping out of it");
			});

		}

	}

}

MoodActorTests

using System;
using Akka.Actor;
using Akka.TestKit;
using Akka.TestKit.Xunit;
using Xunit;

namespace AkkaTestDemo.Tests
{
	public class MoodActorTests : TestKit
	{
		[Fact]
		public void Neutral_to_begin_with()
		{
			var moodActor = Sys.ActorOf<MoodActor>();
			moodActor.Tell("Mood?");
			ExpectMsg("I'm neutral");
		}

		[Fact]
		public void Testing_states()
		{
			var moodActor = Sys.ActorOf<MoodActor>();

			moodActor.Tell("Happy");
			moodActor.Tell("Mood?");
			ExpectMsg("I'm happy");

			moodActor.Tell("Happy");
			moodActor.Tell("Mood?");
			ExpectMsg("I'm happy");

			moodActor.Tell("Angry");
			moodActor.Tell("Mood?");
			ExpectMsg("I'm ANGRY!!!!");
		}

		[Fact]
		public void Testing_snapping_out()
		{
			var moodActor = TestFSMRef.Create<MoodActor, MoodStates, MoodData>(Sys);
			moodActor.Tell("Angry");

			AwaitCondition(() => moodActor.UnderlyingActor.StateName == MoodStates.Neutral, TimeSpan.FromSeconds(2));
		}

		[Fact]
		public void LogEvents_should_be_sent()
		{
			var moodActor = Sys.ActorOf<MoodActor>();

			EventFilter.Info("Snapping out of it").ExpectOne(() =>
			{
				EventFilter.Info(start: "Oh, I was so").ExpectOne(() =>
				{
					moodActor.Tell("Angry");
				});
			});
		}
	}
}