public void RecentEdgeWeight_Filter_ReturnsFalseIfPricesAreEmpty()
{
CommodityHistoryAccessor commodityHistory = new CommodityHistoryAccessor();
Commodity commodity1 = new Commodity(CommodityPool.Current, new CommodityBase("base1"));
Commodity commodity2 = new Commodity(CommodityPool.Current, new CommodityBase("base2"));
RecentEdgeWeight recentEdgeWeight = new RecentEdgeWeight(DateTime.Now);
PriceGraphEdge edge = new PriceGraphEdge();
var result = recentEdgeWeight.Filter(commodity1, commodity2, edge);
Assert.False(result);
}
public void RecentEdgeWeight_Filter_ReturnsTrueIfRefTimeBiggerThanFirstPrice()
{
CommodityHistoryAccessor commodityHistory = new CommodityHistoryAccessor();
Commodity commodity1 = new Commodity(CommodityPool.Current, new CommodityBase("base1"));
Commodity commodity2 = new Commodity(CommodityPool.Current, new CommodityBase("base2"));
DateTime firstPriceTime = new DateTime(2010, 10, 15);
DateTime refTime = new DateTime(2010, 11, 5);
RecentEdgeWeight recentEdgeWeight = new RecentEdgeWeight(refTime);
PriceGraphEdge edge = new PriceGraphEdge();
edge.Prices.Add(firstPriceTime, new Amount(10));
var result = recentEdgeWeight.Filter(commodity1, commodity2, edge);
Assert.True(result);
}
public void RecentEdgeWeight_Filter_ReturnsTrueAndUpdatesWeight()
{
CommodityHistoryAccessor commodityHistory = new CommodityHistoryAccessor();
Commodity commodity1 = new Commodity(CommodityPool.Current, new CommodityBase("base1"));
Commodity commodity2 = new Commodity(CommodityPool.Current, new CommodityBase("base2"));
DateTime firstPriceTime = new DateTime(2010, 10, 1);
DateTime oldest = new DateTime(2010, 11, 2);
DateTime actualPriceTime = new DateTime(2010, 12, 5);
DateTime refTime = new DateTime(2011, 02, 02);
RecentEdgeWeight recentEdgeWeight = new RecentEdgeWeight(refTime, oldest);
PriceGraphEdge edge = new PriceGraphEdge();
edge.Prices.Add(firstPriceTime, new Amount(10));
edge.Prices.Add(actualPriceTime, new Amount(12));
var result = recentEdgeWeight.Filter(commodity1, commodity2, edge);
Assert.True(result);
Assert.Equal(refTime - actualPriceTime, edge.Weight);
Assert.Equal(actualPriceTime, edge.PricePoint.When);
Assert.Equal(new Amount(12), edge.Prices[actualPriceTime]);
}
