new_contents: import pytest
  from tests.apps.questions import models as question_models
  
  from adhocracy4.filters.filters import ClassBasedViewFilterSet
  from adhocracy4.filters.views import FilteredListView
  
  
  class ExampleFilterSet(ClassBasedViewFilterSet):
      class Meta:
          model = question_models.Question
          fields = ['text']
  
  
  @pytest.fixture
  def question_list_view():
      class DummyView(FilteredListView):
          model = question_models.Question
          filter_set = ExampleFilterSet
      return DummyView
  
  
  @pytest.mark.django_db
  def test_class_based_filterset(rf):
      class ViewPlaceHolder:
          pass
  
      view = ViewPlaceHolder
      request = rf.get('/questions')
  
      filterset = ExampleFilterSet(request.GET, view=view)
  
      assert filterset.view == view
      assert filterset.filters['text'].view == view
  
  
  def test_integration_into_filtered_listview(rf, question_list_view):
      request = rf.get('/')
      view = question_list_view.as_view()
      response = view(request)
      view_instance = response.context_data['view']
  
      assert view_instance.filter().view == view_instance
  
subject: Add test for classbased view filters