diff --git a/airflow/dag_processing/manager.py b/airflow/dag_processing/manager.py
index a4e99e06a9dd2..b5429a484e9ea 100644
--- a/airflow/dag_processing/manager.py
+++ b/airflow/dag_processing/manager.py
@@ -407,7 +407,7 @@ def run(self):
         DagBundlesManager().sync_bundles_to_db()
 
         self.log.info("Getting all DAG bundles")
-        self._dag_bundles = DagBundlesManager().get_all_dag_bundles()
+        self._dag_bundles = list(DagBundlesManager().get_all_dag_bundles())
 
         return self._run_parsing_loop()
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 7194e8f307eae..8806dc1e8c1ad 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -104,13 +104,14 @@ def configure_testing_dag_bundle():
 
     @contextmanager
     def _config_bundle(path_to_parse: Path | str):
-        bundle_config = {
-            "classpath": "airflow.dag_processing.bundles.local.LocalDagBundle",
-            "kwargs": {"local_folder": str(path_to_parse), "refresh_interval": 30},
-        }
-        with conf_vars(
-            {("dag_bundles", "testing"): json.dumps(bundle_config), ("dag_bundles", "dags_folder"): ""}
-        ):
+        bundle_config = [
+            {
+                "name": "testing",
+                "classpath": "airflow.dag_processing.bundles.local.LocalDagBundle",
+                "kwargs": {"local_folder": str(path_to_parse), "refresh_interval": 30},
+            }
+        ]
+        with conf_vars({("dag_bundles", "backends"): json.dumps(bundle_config)}):
             yield
 
     return _config_bundle
diff --git a/tests_common/test_utils/db.py b/tests_common/test_utils/db.py
index d8abb8cda1a38..58ad46372d711 100644
--- a/tests_common/test_utils/db.py
+++ b/tests_common/test_utils/db.py
@@ -72,7 +72,7 @@ def _bootstrap_dagbag():
         dagbag = DagBag()
         # Save DAGs in the ORM
         if AIRFLOW_V_3_0_PLUS:
-            dagbag.sync_to_db(bundle_name="dags_folder", bundle_version=None, session=session)
+            dagbag.sync_to_db(bundle_name="dags-folder", bundle_version=None, session=session)
         else:
             dagbag.sync_to_db(session=session)
 
@@ -120,7 +120,7 @@ def parse_and_sync_to_db(folder: Path | str, include_examples: bool = False):
 
         dagbag = DagBag(dag_folder=folder, include_examples=include_examples)
         if AIRFLOW_V_3_0_PLUS:
-            dagbag.sync_to_db("dags_folder", None, session)
+            dagbag.sync_to_db("dags-folder", None, session)
         else:
             dagbag.sync_to_db(session=session)  # type: ignore[call-arg]
         session.commit()