public function testOrderBy()
{
$content = db_get('content', 'limit=1&single=1&order_by=id desc');
$content2 = db_get('content', 'limit=1&single=1&order_by=id asc');
$this->assertTrue(isset($content['id']));
$this->assertTrue(isset($content2['id']));
$this->assertNotEquals($content['id'], $content2['id']);
$this->assertTrue($content['id'] > $content2['id']);
}