public function testApplyRaw()
{
$source = ' <img> some-<b>WORD</b> ' . "\t";
isSame($source, Filter::_($source));
isSame($source, Filter::_($source, ''));
isSame($source, Filter::_($source, 'raw'));
isSame($source, Filter::_($source, 'RAW'));
isSame($source, Filter::_($source, ' R A W '));
}