Autotest.add_hook :ran_command do |at|
File.open( ‘/tmp/autotest.txt’, ‘wb’ ) do |f|
f.write at.results.join.gsub( /\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]/, ” )
end
end

[1] http://serverfault.com/questions/71285/in-centos-4-4-how-can-i-strip-escape-sequences-from-a-text-file

would be better than

nmap fd :cf /tmp/autotest.txt :compiler rubyunit

because

* can be mapped into another key (actually I did)
* if you type numbers before fd unconciously, the command cf would run many times

Altough doesn’t work correctly on linux.
The thing is “compiler rubyunit” opens the file “/test/functional/usercontrollertest.rb”, not “/home/{user}/{pathtorailsapp}/test/functional/usercontroller_test.rb”, which is empty file.