private static void CheckForNull(Product product)
{
if (product == null)
{
throw new ArgumentNullException("product", "Product can't be null");
}
}
private static Catalog MakeCatalog(int count)
{
var result = new Catalog();
for (int i = 0; i < count; i++)
{
var product = new Product()
{
Name = generator.GetRandomString(5, 20),
Price = generator.GetRandomNumber(1, 50)
};
result.Add(product);
}
return result;
}
public void Remove(Product product)
{
CheckForNull(product);
this.products.Remove(product);
}
public void Add(Product product)
{
CheckForNull(product);
this.products.Add(product);
}