Avoid spurious errors due to the environment variable TNS_ADMIN being

unset or set to an empty or invalid value.

Author: anthony-tuininga

tests/test_1100_connection.py

@@ -138,7 +138,8 @@ def test_1104_autocommit(self):
 
     def test_1105_bad_connect_string(self):
         "1105 - connection to database with bad connect string"
-        self.assertRaisesRegex(oracledb.DatabaseError, "^DPY-4000:|ORA-12154:",
+        self.assertRaisesRegex(oracledb.DatabaseError,
+                               "^DPY-4000:|^DPY-4026:|^DPY-4027:|ORA-12154:",
                                oracledb.connect, test_env.get_main_user())
         self.assertRaisesRegex(oracledb.DatabaseError, "^DPY-4000:|^DPY-4001:",
                                oracledb.connect, test_env.get_main_user() + \