#NEWLINE# def test_vol_mgr_list_snapshots( self ) : #NEWLINE# #INDENT# vol = self . volume #NEWLINE# mgr = mgr . manager #NEWLINE# mgr . api . list_snapshots = Mock ( ) #NEWLINE# mgr . list_snapshots ( ) #NEWLINE# mgr . api . list_snapshots . assert_called_once_with ( )