Converting absolute email links to relative links

action_mailer_default_url_options.rb

ActionMailer::Base.default_url_options[:host]

pickle_email_links_relative.rb

module Pickle
  module Email
    def click_first_link_in_email(email)
      link = absolute_link_to_relative(links_in_email(email).first)
      visit link
    end 

    def absolute_link_to_relative(link)
      link.slice(/#{ActionMailer::Base.default_url_options[:host]}(.*)/, 1)
    end 
  end 
end