Checking SSL expiration dates with cucumber

ssl_check.feature

Feature: SSL Renewal Checks
  We have a large list of SSL certificates
  So that none of those expire
  We can run a check for those soon expiring

  Scenario Outline: Check SSL certificate expiration
    When I sslcheck <website>
    Then the SSL certificate should have at least 30 days remaining
  Examples:
  | website                                        |
  | https://recoverylibrary.com                    |
  | https://www.patdeegan.com                      |
  | https://training.personalmedicine.org          |

web_steps.rb

require 'net/https'
require 'date'
When /^I sslcheck (.*)$/ do |path|
  uri = URI.parse(path)
  http = Net::HTTP.new(uri.host,uri.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  http.start do |h|
    @cert = h.peer_cert
  end
end

Then /^the SSL certificate should have at least (\d+) days remaining$/ do |days|
  today = Date.today
  expires = @cert.not_after.to_date

  expect(today).to be < expires
  remaining_days = (expires - today).to_i
  expect(remaining_days).to be > days.to_i
end