--- /dev/null
+--TEST--
+"filter" tags can be nested at will
+--TEMPLATE--
+{% filter lower|title %}
+ {{ var }}
+ {% filter upper %}
+ {{ var }}
+ {% endfilter %}
+ {{ var }}
+{% endfilter %}
+--DATA--
+return array('var' => 'var')
+--EXPECT--
+ Var
+ Var
+ Var