text: import os
  
  from django.test import TestCase
  from django.conf import settings
  from django.contrib.contenttypes.models import ContentType
  from django.core.management import call_command
  
  from mapentity import registry
  
  
  class AuthentFixturesMixin(object):
      fixtures = [os.path.join(settings.PROJECT_ROOT_PATH, 'authent', 'fixtures', 'minimal.json'),
                  os.path.join(settings.PROJECT_ROOT_PATH, 'authent', 'fixtures', 'basic.json')]
  
      def _pre_setup(self):
          if not isinstance(self, TestCase):
              call_command('update_geotrek_permissions')
          super(AuthentFixturesMixin, self)._pre_setup()
  
      @classmethod
      def setUpClass(cls):
          """
          Override setUpClass() of test to make sure MapEntity models are
          registered when test is setup.
          Indeed since permissions are created on model registering, and since
          models are registered in `urls.py` modules, and since `urls.py` are
          imported after test setup, importing them here allows permissions to be
          available before test `setUp()` methods.
          """
  
          # Workaround https://code.djangoproject.com/ticket/10827
          ContentType.objects.clear_cache()
  
          if not registry.registry.keys():
              from geotrek.core import urls  # NOQA
              from geotrek.land import urls  # NOQA
              from geotrek.maintenance import urls  # NOQA
              from geotrek.infrastructure import urls  # NOQA
              from geotrek.trekking import urls  # NOQA
              from geotrek.tourism import urls  # NOQA
  
          call_command('update_geotrek_permissions')
  
          return super(AuthentFixturesMixin, cls).setUpClass()
  
  
  class AuthentFixturesTest(AuthentFixturesMixin, TestCase):
      pass
  