queue_adapter=

# File activejob/lib/active_job/queue_adapter.rb, line 32
      def queue_adapter=(name_or_adapter)
        case name_or_adapter
        when Symbol, String
          queue_adapter = ActiveJob::QueueAdapters.lookup(name_or_adapter).new
          assign_adapter(name_or_adapter.to_s, queue_adapter)
        else
          if queue_adapter?(name_or_adapter)
            adapter_name = "#{name_or_adapter.class.name.demodulize.remove('Adapter').underscore}"
            assign_adapter(adapter_name, name_or_adapter)
          else
            raise ArgumentError
          end
        end
      end