test.rb

require 'capybara/dsl'
require 'selenium-webdriver'

Capybara.run_server = false
Capybara.default_driver = :selenium

class Robot
    include Capybara::DSL
    
    def go
        visit "http://www.example.com"
        puts find("some_id").text
    end
end

r = Robot.new
r.go