@@ -118,6 +118,7 @@ async def engine(self, db_project, db_region, db_instance, db_name):
118118 await aexecute (engine , f'DROP TABLE IF EXISTS "{ DEFAULT_IS_TABLE } "' )
119119 await aexecute (engine , f'DROP TABLE IF EXISTS "{ DEFAULT_CS_TABLE } "' )
120120 await engine .close ()
121+ await engine ._connector .close_async ()
121122
122123 async def test_password (
123124 self ,
@@ -234,6 +235,7 @@ async def test_iam_account_override(
234235 assert engine
235236 await aexecute (engine , "SELECT 1" )
236237 await engine .close ()
238+ await engine ._connector .close_async ()
237239
238240 async def test_init_document_store (self , engine ):
239241 await engine .ainit_doc_store_table (
@@ -365,6 +367,7 @@ async def engine(self, db_project, db_region, db_instance, db_name):
365367 await aexecute (engine , f'DROP TABLE IF EXISTS "{ DEFAULT_VS_TABLE_SYNC } "' )
366368 await aexecute (engine , f'DROP TABLE IF EXISTS "{ DEFAULT_CS_TABLE_SYNC } "' )
367369 await engine .close ()
370+ await engine ._connector .close_async ()
368371
369372 async def test_init_with_constructor (
370373 self ,
@@ -471,6 +474,7 @@ async def test_iam_account_override(
471474 assert engine
472475 await aexecute (engine , "SELECT 1" )
473476 await engine .close ()
477+ await engine ._connector .close_async ()
474478
475479 async def test_init_document_store (self , engine ):
476480 engine .init_doc_store_table (
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