public void OnSaleTill_Should_Throw_ArgumentNullException_If_Products_Is_Null()
{
IQueryable <Product> products = null;
DateTime tillDate = DateTime.Today;
var ex = Assert.Throws <ArgumentNullException>(() => ProductExtensions.OnSaleTill(products, tillDate));
Assert.Equal(nameof(products), ex.ParamName);
}
public void OnSaleTill_Should_Return_Only_Products_OnSale_And_With_OnSaleTo_Date_Previous_Than_The_Specified_Date()
{
var p1 = Product.Create("ean", "sku", "name", "url");
var p2 = Product.Create("ean", "sku", "name", "url");
var p3 = Product.Create("ean", "sku", "name", "url");
p1.SetOnSale(DateTime.Today.AddDays(-5), DateTime.Today.AddDays(-1));
p2.SetOnSale(DateTime.Today.AddDays(-3), DateTime.Today);
IQueryable <Product> products = new Product[]
{
p1, p2, p3
}.AsQueryable();
DateTime tillDate = DateTime.Today;
var productsOnSale = ProductExtensions.OnSaleTill(products, tillDate).ToArray();
Assert.True(productsOnSale.All(p => p.IsOnSale && p.OnSaleTo <= tillDate));
}