public void CalculateMoreThanTwoHours()
        {
            Bike bike = new Bike()
            {
                ID = 1, Brand = "Test", BikeCategory = "Racing", PurchaseDate = DateTime.Now, PriceFirstHour = 3, PriceAdditionalHour = 5
            };
            Rental rental = new Rental()
            {
                Bike = bike, Begin = DateTime.Now, End = DateTime.Now.AddMinutes(150)
            };

            var result = CostCalc.calculateCost(rental);

            Assert.Equal(13, result);
        }