public void TestSelectShiftsByScheduleAndInvalidDepartmentID()
        {
            //Arrange
            string        departmentID  = "Fake4";
            int           scheduleID    = 1;
            IShiftManager _shiftManager = new ShiftManager(_shiftAccessor);
            //Act
            List <ShiftUserVM> actualResult = _shiftManager.RetrieveShiftsByScheduleAndDepartmentID(scheduleID, departmentID);

            Assert.AreEqual(null, actualResult);
        }
        public void TestSelectShiftsByScheduleAndInvalidScheduleID()
        {
            //Arrange
            int           expectedResult = 0;
            string        departmentID   = "Test1";
            int           scheduleID     = 8;
            IShiftManager _shiftManager  = new ShiftManager(_shiftAccessor);
            //Act
            List <ShiftUserVM> actualResult = _shiftManager.RetrieveShiftsByScheduleAndDepartmentID(scheduleID, departmentID);

            Assert.AreEqual(expectedResult, actualResult.Count);
        }