Fixed #29945 -- Moved contrib.postgres uninstallation logic to the app config.

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/postgres_tests/test_apps.py b/tests/postgres_tests/test_apps.py
new file mode 100644
index 0000000000..a5740f9d15
--- /dev/null
+++ b/tests/postgres_tests/test_apps.py
@@ -0,0 +1,13 @@
+from django.db.backends.signals import connection_created
+from django.test.utils import modify_settings
+
+from . import PostgreSQLTestCase
+
+
+class PostgresConfigTests(PostgreSQLTestCase):
+    def test_register_type_handlers_connection(self):
+        from django.contrib.postgres.signals import register_type_handlers
+        self.assertNotIn(register_type_handlers, connection_created._live_receivers(None))
+        with modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'}):
+            self.assertIn(register_type_handlers, connection_created._live_receivers(None))
+        self.assertNotIn(register_type_handlers, connection_created._live_receivers(None))