public void CalculateSimpleMovingAverageFromBasicPriceHistory()
{
int productId = 2, conditionId = 2;
var mockRepository = CreateBasicMockRepository(productId, conditionId);
var sut = new PriceHistoryService(mockRepository) as IPriceHistoryService;
var results = sut.CreateBasicPriceHistory(productId, conditionId);
sut.AddSimpleMovingAverage(results, 5);
var smas = results.Select(ph => ph.SMA.HasValue ? Math.Round(ph.SMA.Value, 3) : ph.SMA);
smas.AssertSequenceIsEqual(null, null, null, null, 12.694, 12.804, 12.894,
12.812, 13.168, 13.12, 13.21, 13.63, 14.036, 14.48, 13.786, 13.588);
}
public void CalculateSimpleMovingAverageWhenIntervalBiggerThanNumberOfPricesDoesntSetSMAs()
{
var mockRepository = A.Fake<ISoldOutRepository>();
A.CallTo(() => mockRepository.GetSearchResultsByProductID(A<int>.Ignored, A<int>.Ignored, A<bool>.Ignored)).Returns(CreateListOfTwoSearchResults());
var sut = new PriceHistoryService(mockRepository) as IPriceHistoryService;
var results = sut.CreateBasicPriceHistory(1, 2);
sut.AddSimpleMovingAverage(results, 5);
Assert.AreEqual(results.Count, 2);
foreach (var result in results)
Assert.IsNull(result.SMA);
}
