# not obvious from the database_cleaner documentation # this is snippets of relevant parts, it's not meant to run require 'mongo' require 'database_cleaner' require 'database_cleaner/mongo/base' include Mongo @mongo_client = MongoClient.new DatabaseCleaner[:mongo].strategy = :truncation DatabaseCleaner[:mongo].db = @mongo_client.db("default") module MiniTest class Spec def setup DatabaseCleaner.start end def teardown DatabaseCleaner.clean end end end