(selenium-webdriver + cucumber + rspec) equivalence to watir contains_text?

gistfile1.rb

FEATURE:

Scenario: Google Landing Page
  * I am on the google page
  * I should see "About Google"
  * I should NOT see "Fidel Castro"


STEPS:

Given /I should (NOT )?see "(.*)"/ do |visibility, what|
  result = @browser.find_elements(:xpath, "//*[text()='" + what + "']")
  if (visibility.to_s.strip == 'NOT') then
    result.count.should == 0
    p ("#{result.count}" + " text matches found")
  else
    result.count.should >= 1
    p ("#{result.count}" + " matching text strings found")
  end
end