public void GetBankAccountData_Testing()
        {
            //Arrange
            DateTime expectedDatum      = Convert.ToDateTime("07.01.2020");
            double   expectedKontostand = 1750000;

            string path = "../../../00_TestCashData/Kontostand.csv";
            AvailableCashCalculator AvailableCashCalculator = new AvailableCashCalculator();

            //Act
            var result = AvailableCashCalculator.GetBankAccountData(path);

            //Assert
            DateTime actualDatum      = result[0].Datum;
            double   actualKontostand = result[0].Kontostand;

            Assert.AreEqual(expectedDatum, actualDatum, "Datum is wrong.");
            Assert.AreEqual(expectedKontostand, actualKontostand, 0.00, "Kontostand is wrong.");
        }