Threads in Cucumber

require 'thwait'

Then /^all links are valid$/ do
    errors  = []
    threads = []
    @links.each do |link|
      threads << Thread.new do
        last_response = get link.url
        errors.push "#{link.url} LINK IS BROKEN" unless last_response.success?
      end
    end
    ThreadsWait.all_waits(*threads)
    assert !errors.empty?, "There are errors: #{errors.join("\n")}" 
end