def METHOD_NAME(self, test_env):
    t = test_env.from_string(
        """
        {% macro outer(o) %}
        {% macro inner() %}
        {% include "o_printer" %}
        {% endmacro %}
        {{ inner() }}
        {% endmacro %}
        {{ outer("FOO") }}
    """
    )
    assert t.render().strip() == "(FOO)"