old_contents: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  
  from odoo.tests import common
  
  
  class TestResponsiveMail(common.SavepointCase):
  
      def test_responsive_mail(self):
          """ Testing mail mailing responsive mail body """
          self.user_employee = self.env['res.users'].with_context({
              'mail_create_nolog': True,
              'mail_create_nosubscribe': True,
              'mail_notrack': True,
              'no_reset_password': True,
          }).create({
              'name': 'Geraldine Mass Mailing User',
              'login': 'geraldine',
              'email': 'g.g@example.com',
              'groups_id': [(6, 0, [  
                  self.env.ref('mass_mailing.group_mass_mailing_user').id,
                  self.env.ref('base.group_partner_manager').id,  # TDE FIXME: check if really necessary for mass mailing
              ])],
          })
  
          test_record = self.env['res.partner'].create({'name': 'Mass Mail Partner'})
          mass_mail_record = self.env['mail.mass_mailing'].sudo(self.user_employee).create({
              'name': 'Test',
              'state': 'draft',
              'mailing_model_id': self.env.ref('base.model_res_partner').id,
          })
  
          composer = self.env['mail.compose.message'].sudo(self.user_employee).with_context({
              'default_composition_mode': 'mass_mail',
              'default_model': 'res.partner',
              'default_res_id': test_record.id,
          }).create({
              'subject': 'Mass Mail Responsive',
              'body': 'I am Responsive body',
              'mass_mailing_id': mass_mail_record.id
          })
  
          mail_values = composer.get_mail_values([test_record.id])
          body_html = str(mail_values[test_record.id]['body_html'])
  
          self.assertIn('<!DOCTYPE html>', body_html)
          self.assertIn('<head>', body_html)
          self.assertIn('viewport', body_html)
          self.assertIn('@media', body_html)
          self.assertIn('I am Responsive body', body_html)
  
new_contents: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  
  from odoo.addons.test_mail.tests.common import mail_new_test_user
  from odoo.tests import common
  
  
  class TestComposer(common.SavepointCase):
  
      def test_body_responsive(self):
          """ Testing mail mailing responsive mail body """
          test_user = mail_new_test_user(
              self.env, login='geraldine',
              groups='mass_mailing.group_mass_mailing_user,base.group_partner_manager'  # TDE FIXME: check if really necessary for mass mailing
          )
  
          test_record = self.env['res.partner'].create({'name': 'Mass Mail Partner'})
          mass_mail_record = self.env['mail.mass_mailing'].sudo(test_user).create({
              'name': 'Test',
              'state': 'draft',
              'mailing_model_id': self.env.ref('base.model_res_partner').id,
          })
  
          composer = self.env['mail.compose.message'].sudo(test_user).with_context({
              'default_composition_mode': 'mass_mail',
              'default_model': 'res.partner',
              'default_res_id': test_record.id,
          }).create({
              'subject': 'Mass Mail Responsive',
              'body': 'I am Responsive body',
              'mass_mailing_id': mass_mail_record.id
          })
  
          mail_values = composer.get_mail_values([test_record.id])
          body_html = str(mail_values[test_record.id]['body_html'])
  
          self.assertIn('<!DOCTYPE html>', body_html)
          self.assertIn('<head>', body_html)
          self.assertIn('viewport', body_html)
          self.assertIn('@media', body_html)
          self.assertIn('I am Responsive body', body_html)
  
subject: use odoo test helper method to create test users