Adding test case

Author: chadgates

pyas2/tests/test_advanced.py

@@ -5,6 +5,7 @@
 from django.test import Client, override_settings
 from django.test import TestCase
 from pyas2lib import Message as As2Message
+from pyas2lib import Mdn as As2Mdn
 
 from pyas2 import settings
 from pyas2.models import Message
@@ -422,6 +423,31 @@ def test_signature_error(self):
             "Failed to verify message signature" in out_message.detailed_status
         )
 
+    def test_missing_message_id(self):
+        # Create the client partner and send the command
+        partner = Partner.objects.create(
+            name="AS2 Server",
+            as2_name="as2server",
+            target_url="http://localhost:8080/pyas2/as2receive",
+            signature="sha1",
+            signature_cert=self.server_crt,
+            encryption="tripledes_192_cbc",
+            encryption_cert=self.server_crt,
+            mdn=True,
+            mdn_mode="ASYNC",
+            mdn_sign="sha1",
+        )
+        out_message = self.build_and_send(partner)
+
+        # Create MDN object without message_id
+        in_message = As2Mdn()
+        in_message.orig_message_id = out_message.message_id
+        in_message.message_id = None
+        mdn_message = Mdn.objects.create_from_as2mdn(in_message, out_message, "R")
+
+        # Check that original message id was used to store mdn_id
+        self.assertEqual(mdn_message.mdn_id, out_message.message_id)
+
     @mock.patch("requests.post")
     def build_and_send(self, partner, mock_request, smudge=False):
         # Build and send the message to server