--TEST--
"batch" filter
--TEMPLATE--
{% for row in items|batch(3, 'fill') %}
  <div class=row>
  {% for key, column in row %}
    <div class={{ key }}>{{ column }}</div>
  {% endfor %}
  </div>
{% endfor %}
--DATA--
return ['items' => ['a' => 'a', 'b' => 'b', 'c' => 'c', 'd' => 'd', '123' => 'e']]
--EXPECT--
<div class=row>
      <div class=a>a</div>
      <div class=b>b</div>
      <div class=c>c</div>
    </div>
  <div class=row>
      <div class=d>d</div>
      <div class=123>e</div>
      <div class=124>fill</div>
    </div>