flush_enqueued_jobs

# File activejob/lib/active_job/test_helper.rb, line 724
      def flush_enqueued_jobs(only: nil, except: nil, queue: nil, at: nil)
        enqueued_jobs_with(only: only, except: except, queue: queue, at: at) do |payload|
          queue_adapter.enqueued_jobs.delete(payload)
          queue_adapter.performed_jobs << payload
          instantiate_job(payload, skip_deserialize_arguments: true).perform_now
        end.count
      end