public void SumByPagingTest_column_cost_paging_2_should_1_1_1_2_1()
{
IProductSource source = Substitute.For <IProductSource>();
ColumnType columnType = ColumnType.Cost;
int paging = 2;
source.GetSource().ReturnsForAnyArgs(_products);
List <int> expected = new List <int> {
1, 1, 1, 2, 1
};
PagingHelper helper = new PagingHelper(source);
List <int> actual = helper.SumByPaging(columnType, paging);
CollectionAssert.AreEquivalent(expected, actual);
}
public void SumByPagingTest_column_sell_price_paging_3_should_3_6_9()
{
IProductSource source = Substitute.For <IProductSource>();
ColumnType columnType = ColumnType.SellPrice;
int paging = 3;
source.GetSource().ReturnsForAnyArgs(_products);
List <int> expected = new List <int> {
3, 6, 9
};
PagingHelper helper = new PagingHelper(source);
List <int> actual = helper.SumByPaging(columnType, paging);
CollectionAssert.AreEquivalent(expected, actual);
}
public List <int> SumByPaging(ColumnType type, int pagingCount)
{
List <Product> products = _source.GetSource();
List <PagingProductSum> productSums = Paging(products, pagingCount);
switch (type)
{
case ColumnType.Cost:
return(productSums.Select(s => s.Cost).ToList());
case ColumnType.Revenue:
return(productSums.Select(s => s.Revenue).ToList());
case ColumnType.SellPrice:
return(productSums.Select(s => s.SellPrice).ToList());
default:
throw new ArgumentOutOfRangeException("type");
}
}