new_contents: from django.apps import apps
  from django.test import TestCase
  
  from ..apps import CoreConfig
  
  
  class CoreConfigTestCase(TestCase):
  
      def test_config(self):
  
          expected = 'core'
          self.assertEqual(CoreConfig.name, expected)
  
          expected = 'apps.core'
          self.assertEqual(apps.get_app_config('core').name, expected)
  
subject: Test the core apps