Add this to your gemfile.

gem 'selenium-rake'

Only prerequisite is that you need java runtime installed, to check..

java -v

if not go to http://java.com/en

Run bundle and you will get the following...

RAKE TASKS

To start the selenium rc server.

rake rc

To stop the selenium server.

rake rc:stop

To run all tests in the test/functional folder with _selenium in the filename.

rake rc:tests

GENERATORS

To override the selenium global selenium config settings, this will make the method global_config available in your individual test cases.

rails generate config

To generate an example test that can be found in test/functional

rails generate example

Pull requests, features, improvements, comments and issues are all welcomed...