gistfile1.rb

def has_selector?(*args)
  options = if args.last.is_a?(Hash) then args.last else {} end
  wait_conditionally_until do
    results = all(*args)

    if results.empty?
      false
    else
      case
        when options[:between]
          options[:between] === results.size
        when options[:count]
          options[:count] == results.size
        when options[:maximum]
          options[:maximum] >= results.size
        when options[:minimum]
          options[:minimum] <= results.size
        else
          results.size > 0
        end
      end
    end
  end
rescue Capybara::TimeoutError
  return false
end