public void Returns_Nth_Most_Veteran_Employees()
        {
            var result = Reporting.CalculateMostVeteran_Employees(10);

            Assert.AreEqual(10, result.Count);
            Assert.AreEqual(new DateTime(2017, 11, 20), result[0].StartDate);
            Assert.IsTrue(IsOldestStartDate(result));
        }