As previously discussed, the database should usually not be mocked. I'm
changing many of these queries for the next stage of the actor
migration, and just copying my own query from the code to the test file
does not give me any confidence that the query I'm writing is correct.
The unit test was simply ensuring that the implementation of the class
doesn't change, it wasn't verifying correct operation.
Change-Id: Id3ee02fd547d0a7b5b7f35866ee317e8b09e6c18
