test: try calling gc to fix windows issue

cognee/infrastructure/databases/relational/sqlalchemy/SqlAlchemyAdapter.py

@@ -507,7 +507,9 @@ class SQLAlchemyAdapter:
             if self.engine.dialect.name == "sqlite":
                 await self.engine.dispose(close=True)
                 # Wait for the database connections to close and release the file (Windows)
-                await asyncio.sleep(2)
+                import gc
+                gc.collect()
+                # await asyncio.sleep(2)
                 db_directory = path.dirname(self.db_path)
                 file_name = path.basename(self.db_path)
                 file_storage = get_file_storage(db_directory)

cognee/tests/test_library.py

@@ -82,11 +82,6 @@ async def main():
     data_root_directory = get_storage_config()["data_root_directory"]
     assert not os.path.isdir(data_root_directory), "Local data files are not deleted"
 
-    from cognee.infrastructure.databases.relational import get_relational_engine
-
-    get_relational_engine().get_session().close()
-    await get_relational_engine().engine.dispose()
-
     # Assert relational, vector and graph databases have been cleaned properly
     await cognee.prune.prune_system(metadata=True)
 
@@ -94,6 +89,8 @@ async def main():
     collection_names = await connection.table_names()
     assert len(collection_names) == 0, "LanceDB vector database is not empty"
 
+    from cognee.infrastructure.databases.relational import get_relational_engine
+
     db_path = get_relational_engine().db_path
     dir_path = os.path.dirname(db_path)
     file_path = os.path.basename(db_path)