public void AMonth() { var startDate = new DateTime(2018, 1, 01); var endDate = new DateTime(2018, 1, 31); var budgets = new List <Budget>() { new Budget() { YearMonth = "201801", Amount = 62 } }; BudgetSetup(budgets); Assert.AreEqual(62, _accounting.TotalAccoount(startDate, endDate)); }