use strict; use warnings; use Test::More tests => 1; use HTML::FormFu; my $count = 0; my $form = HTML::FormFu->new; $form->element('Text')->name('foo'); $form->filter( Callback => 'foo' )->callback( sub { $count++ } ); $form->process( { foo => 'whatever', } ); is( $count, 1 );