text: --TEST--
  "sort" filter
  --TEMPLATE--
  {{ array1|sort|join }}
  {{ array2|sort|join }}
  {{ traversable|sort|join }}
  --DATA--
  return array('array1' => array(4, 1), 'array2' => array('foo', 'bar'), 'traversable' => new ArrayObject(array(0 => 3, 1 => 2, 2 => 1)))
  --EXPECT--
  14
  barfoo
  123
  