teardown_fixtures

# File activerecord/lib/active_record/fixtures.rb, line 945
      def teardown_fixtures
        return unless defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank?

        unless use_transactional_fixtures?
          Fixtures.reset_cache
        end

        # Rollback changes if a transaction is active.
        if use_transactional_fixtures? && Thread.current['open_transactions'] != 0
          ActiveRecord::Base.connection.rollback_db_transaction
          Thread.current['open_transactions'] = 0
        end
        ActiveRecord::Base.verify_active_connections!
      end