it 'offset converted to integer correctly' do
      helper.create_topic_deadline(@topic_due_date, 5000.15, 10)
      new_due_date = TopicDueDate.find_by(parent_id: 10)
      expect(new_due_date).to be_valid
      expect(new_due_date.due_at.to_s).to be == (Time.zone.parse(@topic_due_date.due_at.to_s) + 5000).to_s