my $root1 = HTML::TreeBuilder->new ();
    my $root2 = HTML::TreeBuilder->new ();

    $root1->parse_content ($rendered)->elementify ()
      ->delete_ignorable_whitespace ();
    $root2->parse_content ($expected)->elementify ()
      ->delete_ignorable_whitespace ();

    is ($root1->as_HTML (undef, '   ', {}),
        $root2->as_HTML (undef, '   ', {}), $testName);