public void Should_track_last_time_user_sent_a_message()
        {
            var persistenceService = new ChatPersistenceServiceWrapper();
            var player             = TestData.CreateRegularPlayer <Player_VM>();
            var connectionId       = Guid.NewGuid().ToString();

            persistenceService.TrackConnection(player, connectionId);
            persistenceService.TrackMessageSend(player.MembershipId, connectionId);

            var connection = persistenceService.InternalPersistence[player.MembershipId].Connections.Single(x => x.ConnectionId == connectionId);

            Assert.That(connection.LastActivity.ToShortTimeString(), Is.EqualTo(DateTime.UtcNow.ToShortTimeString()));
        }