#NEWLINE# def testVirtuals( self ) : #NEWLINE# #INDENT# self . assertRaises ( NotImplementedError , BackendDataServer , '' , '' ) #NEWLINE# b = self . get_backend ( ) #NEWLINE# self . assertEqual ( str ( b ) , 'dummy://127.0.0.1:9090' ) #NEWLINE# self . assertFalse ( b . clean ( None ) ) #NEWLINE# self . assertRaises ( NotImplementedError , b . execute_session , None , None ) #NEWLINE# self . assertRaises ( NotImplementedError , b . model_keys , None ) #NEWLINE# self . assertRaises ( NotImplementedError , b . flush )