# RFuzz 0.4 -- Almost Works Usefully

**URL:** <https://www.ruby-forum.com/t/rfuzz-0-4-almost-works-usefully/97724>\
**Category:** Ruby\
**Created:** [July 10, 2006, 3:12am UTC](https://www.ruby-forum.com/t/rfuzz-0-4-almost-works-usefully/97724 "2006-07-10T03:12:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Zed\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/da6949/32.png) [@Zed\_S](https://www.ruby-forum.com/u/Zed_S)\
**Post date:** [July 10, 2006, 3:12am UTC](https://www.ruby-forum.com/t/rfuzz-0-4-almost-works-usefully/97724/1 "2006-07-10T03:12:27Z")

</div>

Another quick release of RFuzz for the people interested in playing with  
it. It’s still sitting on my site but I’ll probably be moving it to  
rubyforge next week.

[http://www.zedshaw.com/projects/rfuzz/](http://www.zedshaw.com/projects/rfuzz/)  
[http://www.zedshaw.com/projects/rfuzz/rfuzz-0.4.gem](http://www.zedshaw.com/projects/rfuzz/rfuzz-0.4.gem)  
[http://www.zedshaw.com/projects/rfuzz/rfuzz-0.4.tgz](http://www.zedshaw.com/projects/rfuzz/rfuzz-0.4.tgz)

WHAT IS IT?

RFuzz is a HTTP server “fuzzing” library, or just general testing  
library. It’s the result of bringing together the various Ruby scripts  
I use to thrash Mongrel into a cohesive framework people can use to  
write their own tests and stability and performance measurements.

FEATURES

- A complete alternative HttpClient that makes ALL http requests simple  
based on the Mongrel HTTP parser.
  - The client is very correct, so it complains about your server your  
server is probably wrong.
  - It allows you to construct any HTTP request, even really weird evil  
ones.
  - All requests are done with simple function calls and passed data so  
you can store the request parameters in a YAML file for “scripting”.
  - No blocks.
  - You can register “defaults” to the client and it’ll use those on  
each request, reducing repetition.
  - It tracks simple cookies so that a client acts like a client.
  - Doesn’t intercept any exceptions so you can see them.
  - Allows you to register a Notifier to watch the process of each  
request.

- A RandomGenerator that can produce random things based on an ArcFour  
engine.
- A simple statistics calculation system to gather information about  
requests (or anything).
- A small DSL for running fuzzing sessions with minimal effort.
- Everything is out of your way, so you don’t have to use the DSL if you  
don’t want.
- Lots of decent documentation.

RFuzz has lots of little goodies in it that are useful outside of the  
RFuzz project, but I’ll be breaking those out in the future.

SAMPLE

Here’s a very small sample session which thrashes a server with a bunch  
of randomly generated URIs:

require ‘rfuzz/session’  
include RFuzz  
s = Session.new :host =\> “localhost”, :port =\> 3000  
s.run 5, :save\_as =\> [“runs.csv”,“counts.csv”] do |c,r|  
uris = r.uris(50,r.num(30))  
uris.each do |u|  
s.count\_errors(:words) do  
resp = c.get(u)  
s.count resp.http\_status  
end  
end  
end

It then produces two files: runs.csv and counts.csv. These files  
contain statistics about the above s.run that you can put through  
R, gnuplot, or a spreadsheet to analyze.

Feel free to play with it. The next step is hooking into Test::Unit  
to make it easy to write tests like this.