public void CustomTotalRows()
{
const string USD = "USD";
const string GBP = "GBP";
const string CHF = "CHF";
var items = new[]
{
new Trade(1, GBP, 100),
new Trade(2, GBP, 200),
new Trade(3, GBP, 100),
new Trade(4, GBP, 200),
new Trade(5, USD, 100),
new Trade(6, USD, 200),
new Trade(7, CHF, 100),
new Trade(8, CHF, 200),
};
using (var source = new SourceCache <Trade, int>(t => t.Id))
using (var sut = new CustomTotalRows(source))
{
source.AddOrUpdate(items);
//should be 1 grand total row, 3 sub total rows, 8 rows
sut.AggregatedData.Count.Should().Be(12);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.GrandTotal).Should().Be(1);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.SubTotal).Should().Be(3);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.Item).Should().Be(8);
sut.AggregatedData.Items.OrderBy(tp => tp.Ticker).ShouldAllBeEquivalentTo(CustomTotalRowsExpectation(source));
//remove all gbp rows. should be 1 grand total row, 2 sub total rows, 4 rows
source.RemoveKeys(new [] { 1, 2, 3, 4 });
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.GrandTotal).Should().Be(1);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.SubTotal).Should().Be(2);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.Item).Should().Be(4);
sut.AggregatedData.Items.OrderBy(tp => tp.Ticker).ShouldAllBeEquivalentTo(CustomTotalRowsExpectation(source));
//add a previously unseen ticker - a new sub total row should have been added
source.AddOrUpdate(new Trade(100, "TRY", 2000));
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.GrandTotal).Should().Be(1);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.SubTotal).Should().Be(3);
sut.AggregatedData.Items.Count(tp => tp.Key.Type == AggregationType.Item).Should().Be(5);
sut.AggregatedData.Items.OrderBy(tp => tp.Ticker).ShouldAllBeEquivalentTo(CustomTotalRowsExpectation(source));
}
}
public void RemoveKeys(IEnumerable <int> keys)
{
_cache.RemoveKeys(keys.Select(p => p.ToString()));
}