#NEWLINE# def test_Prod( self ) : #NEWLINE# #INDENT# k = ( ( GPy . kern . Matern32 ( 2 , active_dims = [ 2 , 3 ] ) * GPy . kern . RBF ( 2 , active_dims = [ 0 , 4 ] ) ) + GPy . kern . Linear ( self . D ) ) #NEWLINE# k . randomize ( ) #NEWLINE# self . assertTrue ( check_kernel_gradient_functions ( k , X = self . X , X2 = self . X2 , verbose = verbose ) )