public async Task TestCalculation2HoursAnd30Mintues() { using (DataAccess dal = new DataAccess()) { dal.InitDatabase(); Customer c = new Customer { Birthday = System.DateTime.Now, Firstname = "Max", Lastname = "Mustermann", Street = "MusterStreet", Town = "MusterTown", ZipCode = "1234" }; int customerId = await dal.AddCustomer(c); Assert.True(customerId >= 0); Bike b = new Bike { Brand = "Testbrand", PurchaseDate = System.DateTime.Now, RentalPriceFirstHour = 10, RentalPriceAdditionalHours = 20, BikeCategory = BikeCategory.Standard }; int bikeId = await dal.AddBike(b); Assert.True(bikeId >= 0); Rental rental = await dal.StartRental(customerId, bikeId); rental = await dal.StopRental(rental.RentalId, rental.RentalBegin.AddMinutes(150)); Assert.True(rental.TotalAmount == (b.RentalPriceFirstHour + 2 * b.RentalPriceAdditionalHours)); } }