def test_example3(self):
register = CashRegister()
initialize_register_from_json(register, "samples/groceryItems.json")
cart_items = collections.Counter("ABCD")
self.assertEqual(register.calculate_total(cart_items), 10.45)
cart_items = collections.Counter("DCCBAABB")
self.assertEqual(register.calculate_total(cart_items), 15.00)
def main():
parser = argparse.ArgumentParser(
description="Cash register program: calculate total at checkout")
parser.add_argument('-items',
'--items',
type=str,
help="Set items path, default: %(default)",
dest='items_json_path')
parser.add_argument('-cart',
'--cart',
type=str,
help="Set cart items, default: %(default)",
dest='cart')
args = parser.parse_args()
register = CashRegister()
initialize_register_from_json(register, args.items_json_path)
cart_items = collections.Counter(args.cart)
print(register.calculate_total(cart_items))
def test_example4(self):
register = CashRegister()
initialize_register_from_json(register, "samples/groceryItems.json")
cart_items = collections.Counter("F")
with self.assertRaises(Exception):
register.calculate_total(cart_items)
