domain-model.md

Classes	Member variables	Methods	Scenario	Outcomes
Supermarket	HashMap<String product, Integer price> products	calculateTotal(HashMap<String product, Integer quantity> basket)	Empty basket Items in basket	Return "Basket is empty" Return total cost of items

Classes	Member variables	Methods	Scenario	Outcomes
Receipt	HashMap<String product, Integer price> products HashMap<String product, Integer quantity> basket	calculateTotal() itemizeReceipt()	Empty basket Products in basket Payment not complete Payment complete	Return "Basket is empty" Return total cost of products Return "Payment is not complete" Return itemized receipt