Separate cache keys for the universe endpoint

:fork_and_knife: 

https://trello.com/c/eU13FGwZ/315-maintain-two-cache-keys-for-the-berkshelf-universe-api-one-for-http-and-one-for-https

Previously, there was only one cache key.  Now there are two:  one for HTTP and one for HTTPS.
I do not want to sound like some kind of rspec newbie, but do these specs need expectations?