process: add a test for AM assign reply-to

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

process/tests/test_amassign.py

@@ -48,6 +48,10 @@ class TestProcessAMAssign(ProcessFixtureMixin, TestCase):
 
         self.assertEqual(len(mail.outbox), 1)
         self.assertEqual(mail.outbox[0].cc, [self.processes.app.archive_email, 'Dc <dc@example.org>'])
+        self.assertEqual(
+            mail.outbox[0].reply_to,
+            ['App <app@example.org>', 'Am <am@example.org>', 'archive-1@nm.debian.org']
+        )
         self.assertEqual(mail.outbox[0].subject, "New Member process, Debian Developer, uploading")
 
     def test_success(self):