def test_discounts_are_released_by_refunds(self):
self.add_discount_prod_1_includes_prod_2(quantity=2)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_2],
)
self.assertEqual(1, len(discounts))
cart.cart.active = False # Keep discount enabled
cart.next_cart()
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_2, 2) # The discount will be exhausted
cart.next_cart()
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_2],
)
self.assertEqual(0, len(discounts))
cart.cart.released = True
cart.next_cart()
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_2],
)
self.assertEqual(1, len(discounts))
def test_enumerate_no_discounts_if_condition_not_met(self):
self.add_discount_prod_1_includes_cat_2(quantity=1)
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_3],
)
self.assertEqual(0, len(discounts))
discounts = discount.available_discounts(self.USER_1, [self.CAT_2], [])
self.assertEqual(0, len(discounts))
def test_product_discount_does_not_appear_with_category(self):
self.add_discount_prod_1_includes_prod_2(quantity=1)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
discounts = discount.available_discounts(self.USER_1, [self.CAT_1], [])
self.assertEqual(0, len(discounts))
def test_product_discount_enabled_twice_appears_twice(self):
self.add_discount_prod_1_includes_prod_3_and_prod_4(quantity=2)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_3, self.PROD_4],
)
self.assertEqual(2, len(discounts))
def test_discount_quantity_is_correct_after_first_purchase(self):
self.test_discount_quantity_is_correct_before_first_purchase()
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_3, 1) # Exhaust the quantity
discounts = discount.available_discounts(self.USER_1, [self.CAT_2], [])
self.assertEqual(1, discounts[0].quantity)
cart.next_cart()
def test_discount_quantity_is_correct_before_first_purchase(self):
self.add_discount_prod_1_includes_cat_2(quantity=2)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
cart.add_to_cart(self.PROD_3, 1) # Exhaust the quantity
discounts = discount.available_discounts(self.USER_1, [self.CAT_2], [])
self.assertEqual(2, discounts[0].quantity)
cart.next_cart()
def handle_products(request, category, products, prefix):
''' Handles a products list form in the given request. Returns the
form instance, the discounts applicable to this form, and whether the
contents were handled. '''
current_cart = CartController.for_user(request.user)
ProductsForm = forms.ProductsForm(category, products)
# Create initial data for each of products in category
items = commerce.ProductItem.objects.filter(
product__in=products,
cart=current_cart.cart,
).select_related("product")
quantities = []
seen = set()
for item in items:
quantities.append((item.product, item.quantity))
seen.add(item.product)
zeros = set(products) - seen
for product in zeros:
quantities.append((product, 0))
products_form = ProductsForm(
request.POST or None,
product_quantities=quantities,
prefix=prefix,
)
if request.method == "POST" and products_form.is_valid():
if products_form.has_changed():
set_quantities_from_products_form(products_form, current_cart)
# If category is required, the user must have at least one
# in an active+valid cart
if category.required:
carts = commerce.Cart.objects.filter(user=request.user)
items = commerce.ProductItem.objects.filter(
product__category=category,
cart=carts,
)
if len(items) == 0:
products_form.add_error(
None,
"You must have at least one item from this category",
)
handled = False if products_form.errors else True
discounts = discount.available_discounts(request.user, [], products)
return products_form, discounts, handled
def test_category_discount_appears_once_with_two_valid_product(self):
self.add_discount_prod_1_includes_cat_2(quantity=1)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
discounts = discount.available_discounts(
self.USER_1,
[],
[self.PROD_3, self.PROD_4]
)
self.assertEqual(1, len(discounts))
def test_category_discount_appears_once_if_met_twice(self):
self.add_discount_prod_1_includes_cat_2(quantity=1)
cart = TestingCartController.for_user(self.USER_1)
cart.add_to_cart(self.PROD_1, 1) # Enable the discount
discounts = discount.available_discounts(
self.USER_1,
[self.CAT_2],
[self.PROD_3],
)
self.assertEqual(1, len(discounts))
def handle_products(request, category, products, prefix):
''' Handles a products list form in the given request. Returns the
form instance, the discounts applicable to this form, and whether the
contents were handled. '''
current_cart = CartController.for_user(request.user)
ProductsForm = forms.ProductsForm(category, products)
# Create initial data for each of products in category
items = commerce.ProductItem.objects.filter(
product__in=products,
cart=current_cart.cart,
).select_related("product")
quantities = []
seen = set()
for item in items:
quantities.append((item.product, item.quantity))
seen.add(item.product)
zeros = set(products) - seen
for product in zeros:
quantities.append((product, 0))
products_form = ProductsForm(
request.POST or None,
product_quantities=quantities,
prefix=prefix,
)
if request.method == "POST" and products_form.is_valid():
if products_form.has_changed():
set_quantities_from_products_form(products_form, current_cart)
# If category is required, the user must have at least one
# in an active+valid cart
if category.required:
carts = commerce.Cart.objects.filter(user=request.user)
items = commerce.ProductItem.objects.filter(
product__category=category,
cart=carts,
)
if len(items) == 0:
products_form.add_error(
None,
"You must have at least one item from this category",
)
handled = False if products_form.errors else True
discounts = discount.available_discounts(request.user, [], products)
return products_form, discounts, handled
def test_discount_is_gone_after_quantity_exhausted(self):
self.test_discount_quantity_is_correct_after_first_purchase()
discounts = discount.available_discounts(self.USER_1, [self.CAT_2], [])
self.assertEqual(0, len(discounts))
def test_enumerate_no_discounts_for_no_input(self):
discounts = discount.available_discounts(self.USER_1, [], [])
self.assertEqual(0, len(discounts))