Merge pull request #76 from ghiculescu/store-message-ids

Write the message IDs to the message on successful send

Author: i7an

lib/mailtrap/action_mailer/delivery_method.rb

@@ -14,7 +14,9 @@ def initialize(settings)
       def deliver!(message)
         mail = Mailtrap::Mail.from_message(message)
 
-        client.send(mail)
+        client.send(mail).tap do |resp|
+          message['X-MT-Message-IDs'] = resp[:message_ids]
+        end
       end
 
       private

spec/mailtrap/action_mailer/delivery_method_spec.rb

@@ -48,6 +48,7 @@
 
     it 'converts the message and sends via API' do
       expect(deliver!).to eq({ success: true, message_ids: expected_message_ids })
+      expect(message['X-MT-Message-IDs'].to_s).to eq(expected_message_ids.join(', '))
       expect(Mailtrap::Client).to have_received(:new).with(api_key: 'correct-api-key')
     end
   end