Add a test helper for creating and routing an inbound email

app/jobs/action_mailbox/routing_job.rb

@@ -2,6 +2,6 @@ class ActionMailbox::RoutingJob < ActiveJob::Base
   queue_as :action_mailbox_routing
 
   def perform(inbound_email)
-    ApplicationMailbox.route inbound_email
+    inbound_email.route
   end
 end

app/models/action_mailbox/inbound_email/routable.rb

@@ -8,4 +8,8 @@ module ActionMailbox::InboundEmail::Routable
   def route_later
     ActionMailbox::RoutingJob.perform_later self
   end
+
+  def route
+    ApplicationMailbox.route self
+  end
 end

lib/action_mailbox/test_helper.rb

@@ -6,7 +6,7 @@ module ActionMailbox
     # referenced with +fixture_name+ located in +test/fixtures/files/fixture_name+.
     def create_inbound_email_from_fixture(fixture_name, status: :processing)
       create_inbound_email file_fixture(fixture_name), filename: fixture_name, status: status
-    end    
+    end
 
     def create_inbound_email_from_mail(status: :processing, **mail_options)
       raw_email = Tempfile.new.tap { |raw_email| raw_email.write Mail.new(mail_options).to_s }
@@ -18,5 +18,9 @@ module ActionMailbox
         ActionDispatch::Http::UploadedFile.new(tempfile: io, filename: filename, type: 'message/rfc822'),
         status: status
     end
+
+    def receive_inbound_email_from_mail(**kwargs)
+      create_inbound_email_from_mail(**kwargs).tap(&:route)
+    end
   end
 end