public void TestTimeCardTransaction()
        {
            int empId           = 5;
            AddHourlyEmployee t = new AddHourlyEmployee(empId, "Bill", "Home", 15.25m);

            t.Execute();

            TimeCardTransaction tct = new TimeCardTransaction(new DateTime(2020, 02, 02), 8.0, empId);

            tct.Execute();

            Employee e = PayrollDatabase.GetEmployee(empId);

            Assert.That(e, Is.Not.Null);

            PaymentClassification pc = e.Classification;

            Assert.That(pc is HourlyClassification, Is.True);
            HourlyClassification hc = pc as HourlyClassification;
            TimeCard             tc = hc.GetTimeCard(new DateTime(2020, 02, 02));

            Assert.That(tc, Is.Not.Null);
            Assert.That(tc.Hours, Is.EqualTo(8.0));
        }