[6.0.x] Fixed #36818 -- Ensured SQLite connection before accessing max_query_params.

Regression in 358fd21c47cdf7bda520ce73c5cfd82bba57827b.

Backport of 84bae9c22a8ae7663c56cce5e0c611ea7c17fce1 from main.

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/backends/sqlite/test_features.py b/tests/backends/sqlite/test_features.py
index 95e060fbcc..45c3ec9f2c 100644
--- a/tests/backends/sqlite/test_features.py
+++ b/tests/backends/sqlite/test_features.py
@@ -1,3 +1,4 @@
+import copy
 import sqlite3
 from unittest import mock, skipUnless
 
@@ -29,3 +30,13 @@ class FeaturesTests(TestCase):
         finally:
             connection.connection.setlimit(limit_name, current_limit)
         self.assertEqual(connection.features.max_query_params, current_limit)
+
+    def test_max_query_params_without_established_connection(self):
+        new_connection = connection.copy()
+        new_connection.settings_dict = copy.deepcopy(connection.settings_dict)
+        self.assertIsNone(new_connection.connection)
+        try:
+            result = new_connection.features.max_query_params
+            self.assertIsInstance(result, int)
+        finally:
+            new_connection._close()