public function tearDown()
{
$dir = $this->driver->getDirectory();
$ext = $this->driver->getExtension();
$iterator = new \RecursiveDirectoryIterator($dir);
foreach (new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::CHILD_FIRST) as $file) {
if ($file->isFile()) {
@unlink($file->getRealPath());
} else {
@rmdir($file->getRealPath());
}
}
}