public function testFiles()
{
$d = new Dir(__DIR__ . '/../tmp/');
$this->assertEquals(15, count($d->getFiles()));
$d = new Dir(__DIR__ . '/../tmp/', true);
$this->assertEquals(15, count($d->getFiles()));
$d = new Dir(__DIR__ . '/../tmp/', true, true);
$this->assertEquals(15, count($d->getFiles()));
$d = new Dir(__DIR__ . '/../tmp/', true, true, true);
$this->assertEquals(15, count($d->getFiles()));
}