Start with a Session, and go
to the URL you need to test:
session = Serubyum.new_session.go("www.google.com")
From here, you can grab the title from the page:
# not fetched yet...
session.title
# => nil
title = session.fetch_title
# => "Google"
# fetched!
session.title
# => "Google"
Or you can grab an element from the page:
element = session.get_element( using: "css selector", value: "input#lst-ib.gsfi" )
Click on an element!
element.click()