public async Task Given_RoomNameAndUserName_When_InvalidRoomName_Then_JoinRoomShouldNotAddUserInRoom() { Assert.False(DbInMemorySqlite.Rooms.Any()); DatabaseSetup.AddUser(DbInMemorySqlite); _messageHub = new MessageHub(DbInMemorySqlite); AssignToHubRequiredProperties(_messageHub); await _messageHub.CreateRoom(new RoomModel { RoomName = "RoomieGroomie", UserName = "******", Category = ItemCategory.categories[0] }, new ItemModel { Name = "Flowers", Category = ItemCategory.categories[0], Description = "A flower", URL = "flowerurlhahahehe.com" }); await _messageHub.JoinRoom("CameraCareNuExista", "Vasea"); var userFromDb = DbInMemorySqlite.Users.FirstOrDefault(); Assert.Null(userFromDb.Room); }