public void AddGame_Save()
        {
            GameModel game = new GameModel()
            {
                MatchID      = service.GetAllMatches()[0].MatchID,
                ChallengerID = service.GetAllMatches()[0].ChallengerID,
                DefenderID   = service.GetAllMatches()[0].DefenderID,
                GameNumber   = 3
            };

            service.AddGame(game);
            var result = unitOfWork.Save();

            Assert.AreEqual(true, result);
        }