static void TestProductGetHashCodeWithInheritance()
{
//Product p1 = new Product(1, "T100", "This is a test product", 100M, 10);
//// these 2 objects should have the same hashcode. The attribute values are all equal.
//Product p2 = new Product(1, "T100", "This is a test product", 100M, 10);
//// this one should have a unique hashcode
//Product p3 = new Product(3, "T300", "This is a test product 3", 300M, 30);
Clothing c1 = new Clothing(3, "C100", "Running tights", 69.99M, 3, "pants", "womens", "large", "blue", "Lucy");
Clothing c2 = new Clothing(3, "C100", "Running tights", 69.99M, 3, "pants", "womens", "large", "blue", "Lucy");
Clothing c3 = new Clothing(1, "T100", "This is a test product", 100M, 10, "not pants", "womens", "large", "blue", "Lucy");
Gear g1 = new Gear(5, "G100", "Sky 10 Kayak", 1049M, 2, "paddle", "Eddyline", "plastic laminate", 32);
Gear g2 = new Gear(5, "G100", "Sky 10 Kayak", 1049M, 2, "paddle", "Eddyline", "plastic laminate", 32);
Gear g3 = new Gear(1, "T100", "This is a test product", 100M, 10, "paddle", "Eddyline", "plastic laminate", 32);
Console.WriteLine("Testing product GetHashCode");
//Console.WriteLine("2 products that have the same properties should have the same hashcode. Expecting true. " + (p1.GetHashCode() == p2.GetHashCode()));
//Console.WriteLine("2 products that have different properties should have different hashcodes. Expecting false. " + (p1.GetHashCode() == p3.GetHashCode()));
Console.WriteLine("2 clothing that have the same properties should have the same hashcode. Expecting true. " + (c1.GetHashCode() == c2.GetHashCode()));
Console.WriteLine("2 clothing that have different properties should have different hashcodes. Expecting false. " + (c1.GetHashCode() == c3.GetHashCode()));
Console.WriteLine("2 gear that have the same properties should have the same hashcode. Expecting true. " + (g1.GetHashCode() == g2.GetHashCode()));
Console.WriteLine("2 gear that have different properties should have different hashcodes. Expecting false. " + (g1.GetHashCode() == g3.GetHashCode()));
Console.WriteLine("clothing and gear that have same properties should have different hashcodes. Expecting false. " + (c3.GetHashCode() == g3.GetHashCode()));
Console.WriteLine();
// this will fail before overriding GetHashCode
HashSet <Product> set = new HashSet <Product>();
//set.Add(p1);
//set.Add(p3);
set.Add(c1);
set.Add(c3);
set.Add(g1);
set.Add(g3);
Console.WriteLine("Testing product GetHashCode by using a hash set");
//Console.WriteLine("The hash set should be able to find a product with the same attributes. Expecting true. " + set.Contains(p2));
Console.WriteLine("The hash set should be able to find a clothing with the same attributes. Expecting true. " + set.Contains(c2));
Console.WriteLine("The hash set should be able to find a gear with the same attributes. Expecting true. " + set.Contains(g2));
Console.WriteLine();
}