--TEST--
"join" filter
--TEMPLATE--
{{ ["foo", "bar"]|join(', ') }}
{{ foo|join(', ') }}
{{ bar|join(', ') }}
--DATA--
return array('foo' => new Foo(), 'bar' => new ArrayObject(array(3, 4)))
--EXPECT--
foo, bar
1, 2
3, 4
