public static function tearDownAfterClass()
{
self::$prefs = null;
if (self::$db) {
self::$db->delete('DELETE FROM horde_prefs');
}
if (self::$migrator) {
self::$migrator->down();
self::$migrator = null;
}
if (self::$db) {
self::$db->disconnect();
self::$db = null;
}
}