public void AddCostShouldReturnCorrectValue()
{
OutingRepo _outingRepo = new OutingRepo();
OutingInfo outing = new OutingInfo(OutingType.Golf, 10, "03/01/18", 20.00m, 200.00m);
OutingInfo outingTwo = new OutingInfo(OutingType.Golf, 10, "03/01/18", 20.00m, 200.00m);
OutingInfo outingThree = new OutingInfo(OutingType.Golf, 10, "03/01/18", 20.00m, 200.00m);
_outingRepo.AddOutingToList(outing);
_outingRepo.AddOutingToList(outingTwo);
_outingRepo.AddOutingToList(outingThree);
decimal actual = _outingRepo.AddCostofOneType(OutingType.Golf);
decimal expected = 600m;
Assert.AreEqual(expected, actual);
}