Monkey patching demo

test.rb

require 'redis'

class Redis
  module Connection
    class Ruby
      def self.restus
        puts 'non overriden'
      end

      def self.connect(config)
        puts 'non overriden'
      end
    end
  end
end


class Redis
  module Connection
    class Ruby
      def self.connect(config)
        puts 'the method is overriden'
      end
    end
  end
end

Redis::Connection::Ruby.restus