use strict;
use warnings;
use HTML::Element;
use Test::More qw(no_plan);

my $element = HTML::Element->new('td', "class"=>"zwischanspalte");
$element->push_content(' ');

my $expected = '<td class="zwischanspalte">&nbsp;</td>';

my $html = $element->as_HTML();
is($html, $expected);