def test_unregistered_filter_fails_loud(self):
        self.assertRaises(ValueError, formatter, 'some text',
                          filter_name='does-not-exist')
Trying to call a unregistered filter will raise a ValueError.
dataset/ETHPy150Open bartTC/django-markup/src/django_markup/tests/test_filter.py/FormatterTestCase.test_unregistered_filter_fails_loud