1 files changed, 6 insertions, 0 deletions

diff --git a/src/mailman/model/tests/test_usermanager.py b/src/mailman/model/tests/test_usermanager.py
index 31f1a7275..f4643f031 100644
--- a/src/mailman/model/tests/test_usermanager.py
+++ b/src/mailman/model/tests/test_usermanager.py
@@ -30,6 +30,7 @@ from mailman.testing.layers import ConfigLayer
 from zope.component import getUtility
 
 
+
 class TestUserManager(unittest.TestCase):
     layer = ConfigLayer
 
@@ -80,3 +81,8 @@ class TestUserManager(unittest.TestCase):
         user = self._usermanager.create_user('anne@example.com', 'Anne Person')
         other_user = self._usermanager.make_user('anne@example.com')
         self.assertIs(user, other_user)
+
+    def test_get_user_by_id(self):
+        original = self._usermanager.make_user('anne@example.com')
+        copy = self._usermanager.get_user_by_id(original.user_id)
+        self.assertEqual(original, copy)