def test_is_instance_BasketPricer(self):
test_pricer = basket_pricer.BasketPricer()
self.assertIsInstance(
test_pricer,
basket_pricer.BasketPricer,
"Object is not instance of BasketPricer class.",
)
def test_get_subtotal_error_with_catalogue_empty(self):
test_pricer = basket_pricer.BasketPricer()
filepath_basket = "shopping_basket/data/basket_test_1.txt"
dict_basket = helpers.basket_textfile_to_dict(filepath_basket)
dict_catalog = {}
with self.assertRaises(NotImplementedError):
test_pricer.calculate_subtotal(dict_basket, dict_catalog)
def test_get_subtotal_zero_with_empty_basket(self):
test_pricer = basket_pricer.BasketPricer()
filepath_catalogue = "shopping_basket/data/catalogue_test.txt"
dict_basket = {}
dict_catalogue = helpers.cat_textfile_to_dict(filepath_catalogue)
test_pricer.calculate_subtotal(dict_basket, dict_catalogue)
self.assertEqual(test_pricer.subtotal, 0.0,
"The subtotal is not zero.")
def test_get_all_totals_error__with_empty_offers(self):
test_pricer = basket_pricer.BasketPricer()
filepath_basket = "shopping_basket/data/basket_test_1.txt"
filepath_catalogue = "shopping_basket/data/catalogue_full.txt"
dict_basket = helpers.basket_textfile_to_dict(filepath_basket)
dict_catalogue = helpers.cat_textfile_to_dict(filepath_catalogue)
dict_offers = {}
with self.assertRaises(NotImplementedError):
test_pricer.calculate_total(dict_basket, dict_catalogue,
dict_offers)
def test_get_discount_error_with_empty_catalogue(self):
test_pricer = basket_pricer.BasketPricer()
filepath_basket = "shopping_basket/data/basket_test_1.txt"
filepath_offers = "shopping_basket/data/offers_test.txt"
dict_basket = helpers.basket_textfile_to_dict(filepath_basket)
dict_catalogue = {}
dict_offers = helpers.offers_textfile_to_dict(filepath_offers)
with self.assertRaises(NotImplementedError):
test_pricer.calculate_discount(dict_basket, dict_catalogue,
dict_offers)
def test_get_subtotal_with_basket_1(self):
test_pricer = basket_pricer.BasketPricer()
filepath_basket = "shopping_basket/data/basket_test_1.txt"
filepath_catalogue = "shopping_basket/data/catalogue_test.txt"
dict_basket = helpers.basket_textfile_to_dict(filepath_basket)
dict_catalogue = helpers.cat_textfile_to_dict(filepath_catalogue)
subtotal = 5.16
test_pricer.calculate_subtotal(dict_basket, dict_catalogue)
self.assertEqual(test_pricer.subtotal, subtotal,
"The subtotal is incorrect.")
def test_get_discount_zero_with_empty_basket(self):
test_pricer = basket_pricer.BasketPricer()
filepath_catalogue = "shopping_basket/data/catalogue_test.txt"
filepath_offers = "shopping_basket/data/offers_test.txt"
dict_basket = {}
dict_catalogue = helpers.cat_textfile_to_dict(filepath_catalogue)
dict_offers = helpers.offers_textfile_to_dict(filepath_offers)
test_pricer.calculate_discount(dict_basket, dict_catalogue,
dict_offers)
self.assertEqual(test_pricer.discount, 0.0,
"The discount is incorrect.")
def test_get_all_totals_basket_3(self):
test_pricer = basket_pricer.BasketPricer()
filepath_basket = "shopping_basket/data/basket_test_3.txt"
filepath_catalogue = "shopping_basket/data/catalogue_full.txt"
filepath_offers = "shopping_basket/data/offers_test.txt"
dict_basket = helpers.basket_textfile_to_dict(filepath_basket)
dict_catalogue = helpers.cat_textfile_to_dict(filepath_catalogue)
dict_offers = helpers.offers_textfile_to_dict(filepath_offers)
subtotal = 15.92
discount = 2.93
total = 12.99
test_pricer.calculate_total(dict_basket, dict_catalogue, dict_offers)
self.assertEqual(test_pricer.subtotal, subtotal,
"The subtotal is incorrect.")
self.assertEqual(test_pricer.discount, discount,
"The discount is incorrect.")
self.assertEqual(test_pricer.total, total, "The total is incorrect.")
def test_is_empty_basket_zeros(self):
test_pricer = basket_pricer.BasketPricer()
self.assertEqual(test_pricer.discount, 0.0, "Discount is not zero.")
self.assertEqual(test_pricer.subtotal, 0.0, "Subtotal is not zero.")
self.assertEqual(test_pricer.total, 0.0, "Total is not zero.")
sys.exit(1)
args = parser.parse_args()
return args
if __name__ == "__main__":
args = parse_args()
BASKET = args.basket
CATALOGUE = args.catalogue
OFFERS = args.offers
if BASKET is None or CATALOGUE is None or OFFERS is None:
print("Error: All file locations must be provided.")
sys.exit(1)
bp = bp.BasketPricer()
print("\nLoading files...")
DICT_BASKET = helpers.basket_textfile_to_dict(BASKET)
DICT_CATALOGUE = helpers.cat_textfile_to_dict(CATALOGUE)
DICT_OFFERS = helpers.offers_textfile_to_dict(OFFERS)
print("\n***************************************")
print("Calculating totals")
bp.calculate_total(DICT_BASKET, DICT_CATALOGUE, DICT_OFFERS)
print("***************************************\n")
bp.print_totals()
sys.exit(1)
