login: T3699: verify system username does not conflict with Linux base users

1 files changed, 11 insertions, 0 deletions

diff --git a/smoketest/scripts/cli/test_system_login.py b/smoketest/scripts/cli/test_system_login.py
index bb6f57fc2..dfa56e971 100755
--- a/smoketest/scripts/cli/test_system_login.py
+++ b/smoketest/scripts/cli/test_system_login.py
@@ -44,6 +44,17 @@ class TestSystemLogin(unittest.TestCase):
         self.session.commit()
         del self.session
 
+    def test_add_linux_system_user(self):
+        system_user = 'backup'
+        self.session.set(base_path + ['user', system_user, 'authentication', 'plaintext-password', system_user])
+
+        # check validate() - can not add username which exists on the Debian
+        # base system (UID < 1000)
+        with self.assertRaises(ConfigSessionError):
+            self.session.commit()
+
+        self.session.delete(base_path + ['user', system_user])
+
     def test_system_login_user(self):
         # Check if user can be created and we can SSH to localhost
         self.session.set(['service', 'ssh', 'port', '22'])