public function testCustomFormatter()
{
$template = '
<div>Test</div>
';
$tss = 'div {content: "test"; format: reverse}';
$template = new \Transphporm\Builder($template, $tss);
require_once 'tests/ReverseFormatter.php';
$template->loadModule(new ReverseFormatterModule());
$this->assertEquals('<div>tset</div>', $this->stripTabs($template->output()->body));
}