Fail fast with Capybara

fail_fast.rb

require 'capybara/util/timeout'

# Rewriting the https://github.com/jnicklas/capybara/blob/master/lib/capybara/util/timeout.rb
# Instead of raising timeout error, print the response info
module Capybara
  class << self

    ##
    # Provides timeout similar to standard library Timeout, but avoids threads
    #
    def timeout(seconds = 1, driver = nil, error_message = nil, &block)
      start_time = Time.now

      result = nil

      until result
        return result if result = yield

        delay = seconds - (Time.now - start_time)
        if delay <= 0
          raise TimeoutError, error_message || fail_fast_timeout_message!(driver)
        end

        driver && driver.wait_until(delay)

        sleep(0.05)
      end
    end


    def fail_fast_timeout_message!(driver)
      "timed out. status=#{driver.status_code}, body:\n#{driver.body}"
    end

  end
end