use strict;
use warnings;
use Test::More tests => 2;
use HTML::FormFu;
my $form = HTML::FormFu->new;
$form->element('Text')->name('foo');
$form->element('Text')->name('bar')->auto_error_class('form_%t_%s_error');
$form->constraint('Number');
$form->process( {
        foo => 'a',
        bar => 'b',
    } );
like( $form->get_field('foo'), qr!\berror_constraint_number\b! );
like( $form->get_field('bar'), qr!\bform_number_constraint_error\b! );