def test_receipt_add_product(self):
toothbrush = Product("toothbrush", ProductUnit.EACH)
apples = Product("apples", ProductUnit.KILO)
receipt_toothbrush = ReceiptItem(toothbrush, 2, 1.5, 3)
receipt = Receipt()
receipt.discount = []
receipt._items = [receipt_toothbrush]
self.assertEqual(1, len(receipt._items))
receipt.add_product(apples, 2, 1, 2)
self.assertEqual(2, len(receipt._items))
def checks_out_articles_from(self, the_cart):
receipt = Receipt()
product_quantities = the_cart.items
for pq in product_quantities:
p = pq.product
quantity = pq.quantity
unit_price = self.catalog.unit_price(p)
price = quantity * unit_price
receipt.add_product(p, quantity, unit_price, price)
the_cart.handle_offers(receipt, self.offers, self.catalog)
return receipt
