--TEST--
error in twig extension
--TEMPLATE--
{{ object.region is not null ? object.regionChoices[object.region] }}
--DATA--
class House
{
    const REGION_S = 1;
    const REGION_P = 2;

    public static $regionChoices = array(self::REGION_S => 'house.region.s', self::REGION_P => 'house.region.p');

    public function getRegionChoices()
    {
        return self::$regionChoices;
    }
}

$object = new House();
$object->region = 1;
return array('object' => $object)
--EXPECT--
house.region.s
