def test_add_already_added(self):
        prio_set_list = event._PrioritizedSetList()
        obj = object()
        prio_set_list.add(0, obj)

        with pytest.raises(ValueError) as excinfo:
            prio_set_list.add(0, obj)
        excinfo.match(r"has already been added")

        with pytest.raises(ValueError) as excinfo:
            prio_set_list.add(1, obj)
        excinfo.match(r"has already been added")
def reverse(self, request, view_name):
        """
        Returns the URL of this tenant.
        """
        http_type = 'https://' if request.is_secure() else 'http://'

        domain = get_current_site(request).domain

        url = ''.join((http_type, self.schema_name, '.', domain, reverse(view_name)))

        return url