'Navigates to the provided sequential.'

def visit_sequential(self, course, chapter, sequential):

    last_accessed_url = reverse('courseware_section', kwargs={'course_id': course.id.to_deprecated_string(), 'chapter': chapter.url_name, 'section': sequential.url_name})
    self.assertEqual(200, self.client.get(last_accessed_url).status_code)
