Rename new_admin_mailer to administration_mailer

app/controllers/administrations_controller.rb

@@ -18,7 +18,7 @@ class AdministrationsController < ApplicationController
 
     if admin.save
       flash.notice = "Administrateur créé"
-      NewAdminMailer.new_admin_email(admin, current_administration).deliver_now!
+      AdministrationMailer.new_admin_email(admin, current_administration).deliver_now!
     else
       flash.alert = admin.errors.full_messages
     end

app/mailers/administration_mailer.rb

@@ -1,4 +1,4 @@
-class NewAdminMailer < ApplicationMailer
+class AdministrationMailer < ApplicationMailer
   def new_admin_email admin, administration
     @admin = admin
     @administration = administration

spec/controllers/administrations_controller_spec.rb

@@ -35,8 +35,8 @@ describe AdministrationsController, type: :controller do
       end
 
       it 'alert new mail are send' do
-        expect(NewAdminMailer).to receive(:new_admin_email).and_return(NewAdminMailer)
-        expect(NewAdminMailer).to receive(:deliver_now!)
+        expect(AdministrationMailer).to receive(:new_admin_email).and_return(AdministrationMailer)
+        expect(AdministrationMailer).to receive(:deliver_now!)
         subject
       end
     end