Sorry for the prior misunderstanding. Replace 409-413 with
```
  # force translation to ensure there's a mapping. NOTE: we're not using the translation.
  updates_location = course_location.replace(category='course_info', name=block)
  updates_locator = loc_mapper().translate_location(course_location.course_id, updates_location)
```

Your test then should verify that calling that translate returns a locator whose block_id == block ('updates' I believe)