def test_concat_two_carts_with_two_differents_items():
result_cart = Cart.concat(
cart(item(reference='x', quantity=1)),
cart(item(reference='y', quantity=1)))
assert Cart.create(
item(reference='x', quantity=1),
item(reference='y', quantity=1)) == result_cart
def cart(*items):
return Cart.create(*items)
def test_concat_two_carts_with_same_items():
result_cart = Cart.concat(
cart(item(reference='x', quantity=3)),
cart(item(reference='x', quantity=2)))
assert Cart.create(item(reference='x', quantity=5)) == result_cart
