def test_add_course_with_wrong_slug_to_cart(cart):
with pytest.raises(Course.DoesNotExist):
CartToolkit.add_course_to_cart(cart=cart, course_slug="somerandomslug")
cart.refresh_from_db()
assert cart.courses.count() == 0
def test_updating_totals_after_adding_course_to_cart(mocker, course_factory,
cart):
update_totals = mocker.patch("carts.models.Cart.update_totals")
CartToolkit.add_course_to_cart(cart=cart,
course_slug=course_factory().slug)
update_totals.assert_called_once()
def test_updating_cart_totals_without_discounts(
cart_with_one_course_with_zero_totals, course_factory):
cart = cart_with_one_course_with_zero_totals
CartToolkit.update_cart_totals(cart=cart)
cart.refresh_from_db()
assert cart.subtotal == cart.total == cart.courses.first().price
def test_add_unpublished_course_to_cart(cart, unpublished_course):
with pytest.raises(Course.DoesNotExist):
CartToolkit.add_course_to_cart(cart=cart,
course_slug=unpublished_course.slug)
cart.refresh_from_db()
assert cart.courses.count() == 0
def test_removing_course_from_cart_updating_totals(mocker,
cart_with_one_course,
course):
update_totals = mocker.patch("carts.models.Cart.update_totals")
CartToolkit.remove_course_from_cart(cart=cart_with_one_course,
course_slug=course.slug)
update_totals.assert_called_once()
def test_add_courses_to_cart(courses_count, cart, course_factory):
for i in range(courses_count):
CartToolkit.add_course_to_cart(cart=cart,
course_slug=course_factory().slug)
cart.refresh_from_db()
assert cart.courses.count() == courses_count
def test_updating_cart_totals_with_multiple_courses_without_discounts(
cart_with_two_courses_with_zero_totals):
cart = cart_with_two_courses_with_zero_totals
CartToolkit.update_cart_totals(cart=cart)
cart.refresh_from_db()
total = cart.courses.first().price + cart.courses.last().price
assert cart.subtotal == cart.total == total
def test_add_already_added_course_to_cart(course_factory, cart):
course = course_factory()
cart.courses.add(course)
CartToolkit.add_course_to_cart(cart=cart, course_slug=course.slug)
cart.refresh_from_db()
assert cart.courses.count() == 1
def test_add_course_to_cart(course_factory, cart):
assert cart.courses.count() == 0
course = course_factory()
CartToolkit.add_course_to_cart(cart=cart, course_slug=course.slug)
cart.refresh_from_db()
test_course = cart.courses.first()
assert test_course == course
def test_updating_cart_totals_with_discount(
mocker, cart_with_one_course_with_zero_totals, discount):
cart = cart_with_one_course_with_zero_totals
mocker.patch(
"discounts.services.DiscountSelector.get_discount_for_course_or_nothing",
return_value=discount)
CartToolkit.update_cart_totals(cart=cart)
cart.refresh_from_db()
assert cart.subtotal == cart.courses.first().price
assert cart.total == discount.new_price
def test_remove_courses_from_cart(course_factory, cart, course_count):
courses = []
for i in range(course_count):
course = course_factory()
cart.courses.add(course)
courses.append(course)
for i in range(course_count):
CartToolkit.remove_course_from_cart(cart=cart,
course_slug=courses[-1].slug)
assert courses[-1] not in cart.courses.all()
assert cart.courses.count() == course_count - i - 1
courses.pop(-1)
def test_loading_inactive_cart(mocker, inactive_cart):
create_cart = mocker.patch("carts.services.CartToolkit._create_new_cart")
test_cart = CartToolkit.load_cart(user=inactive_cart.user,
cart_id=inactive_cart.id)
create_cart.assert_called_once()
assert test_cart != inactive_cart
def check_on_course_already_in_cart_api(request, *args, **kwargs):
try:
data = request.GET
cart_id = int(data.get("cart_id")) if data.get("cart_id") is not None else None
course_slug = data["course_slug"]
except KeyError:
logger.error("Request object doesn't have a slug field")
return Response({"error": CartErrorMessages.REQUEST_FIELDS_ERROR.value}, status=400)
user = request.user
cart = CartToolkit.load_cart(user=user, cart_id=cart_id)
try:
course_already_in_cart = CartToolkit.check_on_course_in_cart(cart=cart, course_slug=course_slug)
except Course.DoesNotExist:
return Response({"error": CourseErrorMessages.COURSE_DOES_NOT_EXIST_ERROR.value}, status=400)
return Response({"course_already_in_cart": course_already_in_cart}, status=200)
def remove_course_from_cart_api(request, *args, **kwargs):
try:
course_slug = request.POST["course_slug"]
except KeyError:
logger.error("Request object doesn't have a slug field")
return Response({"error": CartErrorMessages.REQUEST_FIELDS_ERROR.value}, status=400)
user = request.user
ids = CartListsToolkit.get_cart_lists_ids_from_request(request)
cart_lists = CartListsSelector.get_cart_lists_by_user_and_ids(user=request.user, ids=ids)
try:
CartToolkit.remove_course_from_cart(cart=cart_lists["cart"], course_slug=course_slug)
except Course.DoesNotExist:
return Response({"error": CourseErrorMessages.COURSE_DOES_NOT_EXIST_ERROR.value}, status=400)
serializer = CartOnlyInfoSerializer(instance=cart_lists["cart"])
return Response(serializer.data, status=200)
def get_cart_courses_count_api(request, *args, **kwargs):
data = request.GET
cart_id = int(data.get("cart_id")) if data.get("cart_id") is not None else None
user = request.user
cart = CartToolkit.load_cart(user=user, cart_id=cart_id)
return Response({
"cart_courses_count": cart.get_courses_count(),
"cart_id": cart.id,
}, status=200)
def get_cart_lists_by_user_and_ids(cls, user: User, ids: dict, *args,
**kwargs) -> dict:
cart = CartToolkit.load_cart(user=user, cart_id=ids["cart_id"])
saved_for_later = SavedForLaterToolkit.load_saved_for_later(
user=user, saved_for_later_id=ids["saved_for_later_id"])
if user.is_authenticated:
wishlist = WishlistToolkit.load_wishlist(user=user)
else:
wishlist = None
return {
"cart": cart,
"saved_for_later": saved_for_later,
"wishlist": wishlist,
}
def test_cart_loading_updating_totals(mocker, cart):
cart_update_totals = mocker.patch("carts.models.Cart.update_totals")
test_cart = CartToolkit.load_cart(user=cart.user)
cart_update_totals.assert_called_once()
def test_cart_loading_without_arguments(mocker):
create_cart = mocker.patch("carts.services.CartToolkit._create_new_cart")
test_cart = CartToolkit.load_cart()
create_cart.assert_called_once()
def test_cart_loading_for_user_without_existing_cart(mocker, user):
create_cart = mocker.patch("carts.services.CartToolkit._create_new_cart")
test_cart = CartToolkit.load_cart(user=user)
create_cart.assert_called_once()
def test_cart_loading_with_user_and_different_cart_id(cart, another_cart):
test_cart = CartToolkit.load_cart(user=cart.user, cart_id=another_cart.id)
assert test_cart == cart
def test_cart_loading_with_id(cart):
test_cart = CartToolkit.load_cart(cart_id=cart.id)
assert test_cart == cart
def test_remove_course_with_wrong_slug_from_cart(cart):
with pytest.raises(Course.DoesNotExist):
CartToolkit.remove_course_from_cart(cart=cart,
course_slug="somerandomslug")
assert cart.courses.count() == 0
def get_cart_info_api(request, *args, **kwargs):
user = request.user
ids = CartListsToolkit.get_cart_lists_ids_from_request(request)
cart = CartToolkit.load_cart(user=user, cart_id=ids["cart_id"])
serializer = CartOnlyInfoSerializer(instance=cart)
return Response(serializer.data, status=200)
def test_remove_not_added_course_from_cart(course_factory, cart):
CartToolkit.remove_course_from_cart(cart=cart,
course_slug=course_factory().slug)
assert cart.courses.count() == 0
def update_totals(self) -> 'carts.Cart':
"""Updates cart totals. This method made to avoid circular imports"""
from carts.services import CartToolkit
CartToolkit.update_cart_totals(cart=self)
return self
def test_loading_active_and_inactive_cart_with_same_user_with_proper_id(
cart, inactive_cart):
test_cart = CartToolkit.load_cart(user=inactive_cart.user, cart_id=cart.id)
assert test_cart == cart
def test_cart_loading_with_user(cart):
test_cart = CartToolkit.load_cart(user=cart.user)
assert test_cart == cart
def test_cart_loading_with_user_and_id_for_same_cart(cart):
test_cart = CartToolkit.load_cart(user=cart.user, cart_id=cart.id)
assert test_cart == cart
def test_updating_cart_totals_for_empty_cart(cart):
CartToolkit.update_cart_totals(cart=cart)
cart.refresh_from_db()
assert cart.subtotal == cart.total == 0
