1--TEST--
2Exception for child templates defining content outside blocks defined by parent
3--TEMPLATE--
4{% extends 'base.twig' %}
5
6Content outside a block.
7
8{% block sidebar %}
9    Content inside a block.
10{% endblock %}
11--TEMPLATE(base.twig)--
12{% block sidebar %}
13{% endblock %}
14--EXCEPTION--
15Twig\Error\SyntaxError: A template that extends another one cannot include content outside Twig blocks. Did you forget to put the content inside a {% block %} tag in "index.twig" at line 3?
16