--- /dev/null
+--TEST--
+"block" function
+--TEMPLATE--
+{% extends 'base.twig' %}
+{% block bar %}BAR{% endblock %}
+--TEMPLATE(base.twig)--
+{% block foo %}{{ block('bar') }}{% endblock %}
+{% block bar %}BAR_BASE{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+BARBAR