One of the most frustrating things I run into in development is that sometimes, when I have been doing my testing, (even FE testing) and making changes to FE code, and pushing to production and start getting 500's because some element in my production dataset is nil that is not nil in my factories.  So now I just cobbled together a test method t…

crawl_the_site.rb

require_relative '../features_helper'

describe "as an admin", js: true do
  it 'crawls the site with a tiny data set' do
    default_url_options[:host] = "127.0.0.1:6543"
    sign_in(:admin)
    objects = [
                create(:customer),
                create(:job),
                create(:employee),
                create(:purchase_order),
                create(:po_request),
                create(:vendor),
                create(:timesheet),
              ]
    objects.each do |object|
      ap "Exploring #{object.class.name}"
      nilled_attrs = []
      object.attributes.keys.each do |attribute|
        next if ["id", "created_at", "updated_at"].include?(attribute)
        old_value = object.send(attribute.to_sym)
        object.send("#{attribute}=".to_sym, nil)
        if object.valid?
          nilled_attrs << attribute
        else
          object.send("#{attribute}=".to_sym, old_value)
        end
      end
      object.save
      ap "nilled out #{nilled_attrs.join(", ")}"
      {show: url_for(object), index: url_for(object.class), new: url_for([:new, object]), edit: url_for([:edit, object])}.each do |method, url|
        if (object.class.name.pluralize+"Controller").constantize.send(:instance_methods, false).include?(method)
          ap "Visiting #{url}"
          visit url
          expect(page).to_not have_content("Internal Server Error")
        end
      end
    end
  end
end

output.log

"Exploring Customer"
"nilled out description, prefix"
"Visiting http://127.0.0.1:6543/customers/1"
"Visiting http://127.0.0.1:6543/customers"
"Visiting http://127.0.0.1:6543/customers/new.1"
"Visiting http://127.0.0.1:6543/customers/1/edit"
"Exploring Job"
"nilled out supervisor_id, job_site_id, one_call_valid_until_date, description, job_number, start_date, end_date, projected_end_date, no_dig_test_needed, location_requested"
"Visiting http://127.0.0.1:6543/jobs/1"
"Visiting http://127.0.0.1:6543/jobs"
"Visiting http://127.0.0.1:6543/jobs/new.1"
"Visiting http://127.0.0.1:6543/jobs/1/edit"
"Exploring Employee"
"nilled out hire_date, title, active, work_truck_id, company_phone_serial, user_id, hourly_rate, drh_fuel_system_num, fuel_man_card_num, comdata_card_num, check_1099, date_1099, auto, child_support, ins, loan_amount, loan_payback"
"Visiting http://127.0.0.1:6543/employees/2"
 
An error occurred in an after hook
  ActionView::Template::Error: undefined method `strftime' for nil:NilClass
  occurred at /Users/litch/code/project-oilfield/app/views/employees/show.html.haml:14:in `_app_views_employees_show_html_haml__696395862962300194_70317308233200'
 
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