public function testDatabase()
{
/* setup */
$this->_request->setServer('argv', ['console.php', 'backup', 'database', '--directory', '.backup']);
$backupCommand = new Command\Backup($this->_registry, $this->_request, $this->_config);
/* actual */
$actual = $backupCommand->run('cli');
/* compare */
$this->assertTrue($actual);
}