1 files changed, 16 insertions, 2 deletions
diff --git a/src/mailman/bin/tests/test_mailman.py b/src/mailman/bin/tests/test_mailman.py
index 54ee54bce..196437291 100644
--- a/src/mailman/bin/tests/test_mailman.py
+++ b/src/mailman/bin/tests/test_mailman.py
@@ -27,6 +27,7 @@ from mailman.config import config
 from mailman.database.transaction import transaction
 from mailman.testing.layers import ConfigLayer
 from mailman.utilities.datetime import now
+from pkg_resources import resource_filename
 from unittest.mock import patch
 
 
@@ -36,7 +37,19 @@ class TestMailmanCommand(unittest.TestCase):
     def setUp(self):
         self._command = CliRunner()
 
-    def test_mailman_command_without_subcommand_prints_help(self):
+    def test_mailman_command_config(self):
+        config_path = resource_filename('mailman.testing', 'testing.cfg')
+        with patch('mailman.bin.mailman.initialize') as init:
+            self._command.invoke(main, ('-C', config_path, 'info'))
+        init.assert_called_once_with(config_path)
+
+    def test_mailman_command_no_config(self):
+        with patch('mailman.bin.mailman.initialize') as init:
+            self._command.invoke(main, ('info',))
+        init.assert_called_once_with(None)
+
+    @patch('mailman.bin.mailman.initialize')
+    def test_mailman_command_without_subcommand_prints_help(self, mock):
         # Issue #137: Running `mailman` without a subcommand raises an
         # AttributeError.
         result = self._command.invoke(main)
@@ -46,7 +59,8 @@ class TestMailmanCommand(unittest.TestCase):
         # command line.
         self.assertEqual(lines[0], 'Usage: main [OPTIONS] COMMAND [ARGS]...')
 
-    def test_mailman_command_with_bad_subcommand_prints_help(self):
+    @patch('mailman.bin.mailman.initialize')
+    def test_mailman_command_with_bad_subcommand_prints_help(self, mock):
         # Issue #137: Running `mailman` without a subcommand raises an
         # AttributeError.
         result = self._command.invoke(main, ('not-a-subcommand',))