def test_when_add_to_cart_one_prod_Then_countProuct_OK(self):
cart = Cart()
cart.add(PROD_ID_1, 3)
self.assertEqual(cart.countProduct(PROD_ID_1), 3)
cart.add(PROD_ID_1, 8)
self.assertEqual(cart.countProduct(PROD_ID_1), 11)
cart.add(PROD_ID_1, 9)
self.assertEqual(cart.countProduct(PROD_ID_1), 20)
def test_when_add_to_cart_Then_many_countProuct_OK(self):
cart = Cart()
cart.add(PROD_ID_1, 3)
self.assertEqual(cart.countProduct(PROD_ID_1), 3)
cart.add(PROD_ID_2, 8)
self.assertEqual(cart.countProduct(PROD_ID_2), 8)
cart.add(PROD_ID_3, 9)
self.assertEqual(cart.countProduct(PROD_ID_3), 9)
def test_when_add_to_cart_Then_countProuct_OK(self):
cart = Cart()
cart.add(PROD_ID_1, 1)
self.assertEqual(cart.countProduct(PROD_ID_1), 1)
def test_when_empty_cart_then_count_eq_0(self):
cart = Cart()
self.assertEqual(cart.countProduct(PROD_ID_1), 0)
self.assertEqual(cart.countProduct(PROD_ID_2), 0)
self.assertEqual(cart.countProduct(PROD_ID_3), 0)
