it 'delete_all_selected_topics for a microtask assignment and redirects to edit assignment page with multiple topic selected' do
      create(:topic, id: 6000, assignment_id: 6000, topic_identifier: 'topic6000')
      create(:topic, id: 7000, assignment_id: 6000, topic_identifier: 'topic7000')
      create(:topic, id: 8000, assignment_id: 6000, topic_identifier: 'topic8000')
      request_params = { assignment_id: 6000, topic_ids: %w[topic6000 topic7000] }