Test for discovering an infinite loop (https://github.com/ella/ella/issues/101)

gistfile1.py

class TestNestedListing(TestCase):
    def setUp(self):
        super(TestNestedListing, self).setUp()
        create_basic_categories(self)
        create_and_place_a_publishable(self)
        create_and_place_more_publishables(self)
        list_all_publishables_in_category_by_hour(self, category=self.category_nested_second)
        list_all_publishables_in_category_by_hour(self, category=self.category_nested)

    def test_get_listing_with_all_children_in_nested_category(self):
        l = Listing.objects.get_listing(category=self.category_nested, children=ListingHandler.ALL)
        tools.assert_equals(self.listings, list(l))