public void CheckThatSalaryIsCalculatedCorreclty()
        {
            DateTime        temp       = DateTime.Now;
            BakerApprentice apprentice = new BakerApprentice(temp);
            Baker           baker      = new Baker(temp);

            Assert.AreEqual(300, apprentice.CalculateSalary(1));
            Assert.AreEqual(1000, baker.CalculateSalary(2));
        }