More tests

Only one user can sign in - until this becomes multiuser

app/controllers/registrations_controller.rb

@@ -0,0 +1,17 @@
+class RegistrationsController < Devise::RegistrationsController
+
+  before_action :one_user_registered?, only: [:new, :create]
+
+  protected
+
+  def one_user_registered?
+    if User.count == 1
+      if user_signed_in?
+        redirect_to root_path
+      else
+        redirect_to new_user_session_path
+      end
+    end
+  end
+
+end

app/views/devise/shared/_links.html.erb

@@ -23,3 +23,5 @@
     <%= button_to "Sign in with #{OmniAuth::Utils.camelize(provider)}", omniauth_authorize_path(resource_name, provider), data: { turbo: false } %><br />
   <% end %>
 <% end %>
+
+

app/views/layouts/application.html.erb

@@ -31,7 +31,6 @@
     <hr/>
     <h3>To-Do (In order of importance):</h3>
     <ul>
-      <li>Blocking Sign-up at Routes level</li>
       <li>Tests for controllers and integration</li>
       <li>2FA</li>
     </ul>

config/routes.rb

@@ -2,10 +2,11 @@ Rails.application.routes.draw do
 
   resources :domains do
     resources :credentials, only: [ :new, :create, :edit, :update, :destroy]
-    resources :virtuals
+    resources :virtuals, only: [ :new, :create, :edit, :update, :destroy]
   end
 
-  devise_for :users
+  devise_for :users, controllers: { registrations: "registrations" }
+
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
   # Defines the root path route ("/")

test/controllers/virtuals_controller_test.rb

@@ -3,6 +3,7 @@ require "test_helper"
 class VirtualsControllerTest < ActionDispatch::IntegrationTest
   setup do
     @virtual = virtuals(:one)
+    @domain = doamins(:one)
   end
 
   test "should get index" do