1 files changed, 14 insertions, 0 deletions
diff --git a/tests/test_connection.py b/tests/test_connection.py
index a82bd49..4625e7e 100755
--- a/tests/test_connection.py
+++ b/tests/test_connection.py
@@ -246,6 +246,13 @@ class ConnectionTests(ConnectingTestCase):
             else:
                 del os.environ['PGCLIENTENCODING']
 
+    def test_connect_no_string(self):
+        class MyString(str):
+            pass
+
+        conn = psycopg2.connect(MyString(dsn))
+        conn.close()
+
     def test_weakref(self):
         from weakref import ref
         import gc
@@ -400,6 +407,13 @@ class ParseDsnTestCase(ConnectingTestCase):
         self.assertRaises(TypeError, ext.parse_dsn, None)
         self.assertRaises(TypeError, ext.parse_dsn, 42)
 
+    def test_str_subclass(self):
+        class MyString(str):
+            pass
+
+        res = ext.parse_dsn(MyString("dbname=test"))
+        self.assertEqual(res, {'dbname': 'test'})
+
 
 class MakeDsnTestCase(ConnectingTestCase):
     def test_empty_arguments(self):