public void CreateDependencies() { var store = new InMemoryStreamStore(); var eventMapping = new EventMapping(new Dictionary <string, Type> { { "SomethingHappened", typeof(SomethingHappened) }, { "SomethingElseHappened", typeof(SomethingElseHappened) }, }); var eventSerializer = new EventSerializer(JsonConvert.SerializeObject); var eventDeserializer = new EventDeserializer(JsonConvert.DeserializeObject); _factRepository = new StreamStoreFactRepository(store, eventMapping, eventSerializer, eventDeserializer); _handlerFactory = (eventType, @event) => async(command) => (await store.AppendToStream( (command as DoSomething).Identifier, ExpectedVersion.Any, new NewStreamMessage(Guid.NewGuid(), eventType, eventSerializer.SerializeObject(@event)), CancellationToken.None) ).CurrentPosition; _handlerResolver = new Mocking <IHandlerResolver, HandlerResolverSetup>(); }