old_contents: from django.test import TestCase
  
  # Create your tests here.
  
new_contents: import pdb
  from django.test import TestCase
  from .models import Move
  
  # Create your tests here.
  class IndexTests(TestCase):
  
      def test_user_uuid_is_set_if_not_set(self):
          self.client.get('/')
          self.assertTrue(self.client.session.get('user_uuid'))
  
subject: Create IndexTests class. Implement uuid test.