serialize_args_for_assertion

# File activejob/lib/active_job/test_helper.rb, line 310
      def serialize_args_for_assertion(args) # :nodoc:
        args.dup.tap do |serialized_args|
          serialized_args[:args] = ActiveJob::Arguments.serialize(serialized_args[:args]) if serialized_args[:args]
          serialized_args[:at]   = serialized_args[:at].to_f if serialized_args[:at]
        end
      end