public function testIsNotRoot()
{
$nestedset = new NestedSet_Model();
$db = Zend_Db::factory('Pdo_Sqlite', array('dbname' => 'tests/test.db'));
$nestedset->setDb($db);
$nestedset->setTableName('nested');
$nestedset->add('foo');
$nestedset->add('bar');
$this->assertFalse($nestedset->isRoot(1));
}