#NEWLINE# @ pytest . mark . parametrize ( 'backend' , [ 12 , 'asdasd' , object ( ) , { #NEWLINE# #INDENT# 'name' : 'Aloha' , #NEWLINE# 'module_path' : 'dummy' , #NEWLINE# #UNINDENT# } , [ 'name' ] , ( 'name' , 'Aloha' ) ] ) #NEWLINE# def test_backends_add_fail( self , backend , backends ) : #NEWLINE# #INDENT# with pytest . raises ( AssertionError ) : #NEWLINE# #INDENT# backends . add ( backend )