public void EventRepo_CalculateAllOutings_ShouldBeCorrect()
        {
            EventRepo eventRepo = new EventRepo();
            Event     cost      = new Event();

            cost.PerOutCost = 5m;
            Event outing = new Event();

            outing.PerOutCost = 5m;
            Event outingTwo = new Event();

            outingTwo.PerOutCost = 5m;

            eventRepo.AddEventToList(cost);
            eventRepo.AddEventToList(outing);
            eventRepo.AddEventToList(outingTwo);

            decimal actual   = eventRepo.CalculateAllOutings();
            decimal expected = 15;

            Assert.AreEqual(expected, actual);
        }