public void TestSave()
        {
            var balance = BalanceFactory.Build(x =>
            {
                x.Inputs.Clear();
                x.Inputs.Add(new ShortEntryDTO(DateTime.Today, 100m));
            });

            _repository.Save(balance);
            Assert.IsNotNull(balance.Id);
            Assert.AreEqual(balance.Inputs.Count, 1);
        }