create cart in create.sql
create CartServiceTest Class
update CartServiceTest Class
new CartService Class
new CartDao class
update CartService to add carDao filed and catDao Setter
add add_to_cart_test
new CartItem CLass
add constructor and filed to CartItem Class
add addToCart Method to CartDao and CartService
complete addToCart Method
success in add_to_cart_test
add remove_from_cart_test
add removeFromCart method to CartDao and CartService
add edit_cart_item_test
add editCartItem method to CartDao and CartService
rename removeFromCart to removeCartItem
add get_cart_item_by_id_test
success in get_cart_item_by_id_test
add get_cartItems_test