def test_product_constructor_should_raise_exception():
"""This test will raise error if you pass empty string to product constructor"""
with pytest.raises(ValueError):
Product(' ', 89)
"""This test will raise error if you pass price of product less than 0"""
with pytest.raises(ValueError):
Product('Dove', -9)
"""This test will raise error if you pass price of product as a string"""
with pytest.raises(ValueError):
Product('Dove', 'trge')
def test_cart_total_cost_should_be_roundup_by_2_decimal(cart):
product = Product('Test 1', 39.99)
item = Item(product, 5)
cart.add_item_in_cart(item)
expected_no_of_items = 1
expected_total_cost_cart = 199.95
assert len(cart.get_all_items_in_cart()) == expected_no_of_items
assert cart.get_subtotal_of_cart() == expected_total_cost_cart
def main():
try:
print("Started")
"""Let create Dove product"""
product = Product('Dove Soap', 39.99)
"""create second product"""
product2 = Product('Axe Deo', 99.99)
"""Create empty Cart for the user"""
cart = Cart()
"""Add items to the cart"""
item = Item(product, 2)
cart.add_item_in_cart(item)
print("Added first item to the cart")
""" Add second item to the cart"""
item2 = Item(product2, 2)
cart.add_item_in_cart(item2)
print("Added first item to the cart")
"""Print the Bill"""
print("===============================================")
print("Item_no Product_name Quantity")
for count, item in enumerate(cart.get_all_items_in_cart(), 1):
print("{0:8d} {1:12} {2}".format(count,
item.get_product().get_name(),
item.get_quantity()))
print("================================================")
print("Subtotal of bill {0}".format(cart.get_subtotal_of_cart()))
print("Sales tax on the bill {0}".format(cart.get_total_tax_of_cart()))
print("Total bill {0}".format(cart.get_total_cart_cost()))
except ValueError as err:
print("Value Error : {0}".format(err))
except TypeError as err:
print("Type Error : {0}".format(err))
except Exception as err:
print("Exception : {0}".format(err))
finally:
print("Finished")
def test_cart_decrease_quantity_item_to_zero(cart):
"""Create product"""
product = Product('Dove Soap', 39.99)
"""create an item """
item = Item(product, 5)
cart.add_item_in_cart(item)
"""Initial checks"""
assert len(cart.get_all_items_in_cart()) == 1
cart_item = cart.get_all_items_in_cart()[0]
assert cart_item.get_quantity() == 5
assert cart.get_subtotal_of_cart() == 199.95
assert cart.get_total_tax_of_cart() == 25.0
assert cart.get_total_cart_cost() == 224.95
"""update the item quantity to zero"""
quantity = cart.get_all_items_in_cart()[0].get_quantity()
cart.decrease_quantity_of_item(item, quantity)
assert len(cart.get_all_items_in_cart()) == 0
assert cart.get_subtotal_of_cart() == 0
assert cart.get_total_tax_of_cart() == 0
assert cart.get_total_cart_cost() == 0
def test_cart_increase_item_quantity(cart):
"""Create product"""
product = Product('Dove Soap', 39.99)
"""create an item """
item = Item(product, 5)
cart.add_item_in_cart(item)
"""Initial checks"""
assert len(cart.get_all_items_in_cart()) == 1
cart_item = cart.get_all_items_in_cart()[0]
assert cart_item.get_quantity() == 5
assert cart.get_subtotal_of_cart() == 199.95
assert cart.get_total_tax_of_cart() == 25.0
assert cart.get_total_cart_cost() == 224.95
"""increase the item quantity by 5 """
cart.increase_quantity_of_item(item, 3)
assert len(cart.get_all_items_in_cart()) == 1
cart_item = cart.get_all_items_in_cart()[0]
assert cart_item.get_quantity() == 8
assert cart.get_subtotal_of_cart() == 319.92
assert cart.get_total_tax_of_cart() == 39.99
assert cart.get_total_cart_cost() == 359.91
def product():
return Product('Dove Soap', 39.99)
def product():
return Product('Dove Soap', 19)
def test_item_sub_total_should_round_value_by_2_decimal():
product = Product('Test 1', 19.499)
item = Item(product, 9)
assert item.get_sub_total() == 175.5