Refactor out handle_failure method in PollMailbox

app/jobs/scheduled/poll_mailbox.rb

@@ -24,7 +24,13 @@ module Jobs
         mail_string = mail.pop
         Email::Receiver.new(mail_string).process
       rescue => e
-        message_template = nil
+        handle_failure(mail_string, e)
+      ensure
+        mail.delete
+      end
+    end
+
+    def handle_failure(mail_string, e)
       template_args = {}
       case e
         when Email::Receiver::UserNotSufficientTrustLevelError
@@ -62,9 +68,6 @@ module Jobs
       else
         Discourse.handle_exception(e, error_context(@args, "Unrecognized error type when processing incoming email", mail: mail_string))
       end
-      ensure
-        mail.delete
-      end
     end
 
     def poll_pop3s

spec/jobs/poll_mailbox_spec.rb

@@ -63,6 +63,10 @@ describe Jobs::PollMailbox do
     end
   end
 
+  def expect_success
+    Jobs::PollMailbox.expects(:handle_failure).never
+  end
+
   describe "processing email B" do
     let(:category) { Fabricate(:category) }
     let(:user) { Fabricate(:user) }
@@ -83,6 +87,7 @@ describe Jobs::PollMailbox do
       let(:expected_post) { fixture_file('emails/valid_incoming.cooked') }
 
       it "posts a new topic with the correct content" do
+        expect_success
 
         poller.handle_mail(email)
 
@@ -111,8 +116,7 @@ describe Jobs::PollMailbox do
       end
 
       pending "creates a new post with the correct content" do
-        RejectionMailer.expects(:send_rejection).never
-        Discourse.expects(:handle_exception).never
+        expect_success
 
         poller.handle_mail(email)