1 files changed, 51 insertions, 0 deletions
diff --git a/src/mailman/mta/tests/test_connection.py b/src/mailman/mta/tests/test_connection.py
new file mode 100644
index 000000000..74d0e537c
--- /dev/null
+++ b/src/mailman/mta/tests/test_connection.py
@@ -0,0 +1,51 @@
+# Copyright (C) 2014 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Test MTA connections."""
+
+__all__ = [
+    'TestConnection',
+    ]
+
+
+import unittest
+
+from mailman.config import config
+from mailman.mta.connection import Connection
+from mailman.testing.layers import SMTPLayer
+from smtplib import SMTPAuthenticationError
+
+
+
+class TestConnection(unittest.TestCase):
+    layer = SMTPLayer
+
+    def test_authentication_error(self):
+        # Logging in to the MTA with a bad user name and password produces a
+        # 571 Bad Authentication error.
+        with self.assertRaises(SMTPAuthenticationError) as cm:
+            connection = Connection(
+                config.mta.smtp_host, int(config.mta.smtp_port), 0,
+                'baduser', 'badpass')
+            connection.sendmail('anne@example.com', ['bart@example.com'], """\
+From: anne@example.com
+To: bart@example.com
+Subject: aardvarks
+
+""")
+        self.assertEqual(cm.exception.smtp_code, 571)
+        self.assertEqual(cm.exception.smtp_error, b'Bad authentication')