andymccurdy/redis-py — pull request #473 by kainswor (2014-05-07 21:50:51+00:00)
Title: Implement the CONFIG REWRITE command

http://redis.io/commands/config-rewrite

Not sure how you'd want to test this- as it's almost more a redis unit test (seeing if config changes are properly persisted), and the implementation itself is straightforward as it gets.