new_contents: from django.core.management import call_command
  from django.test import TestCase
  
  from frontend.models import Practice
  
  
  class InferPracticeBoundariesTestCase(TestCase):
  
      fixtures = ['orgs', 'practices']
  
      def test_basic_smoketest(self):
          should_have_boundary = Practice.objects.filter(
              setting=4, location__isnull=False
          )
          has_boundary = Practice.objects.filter(boundary__isnull=False)
          self.assertGreater(should_have_boundary.count(), 0)
          self.assertEqual(has_boundary.count(), 0)
          call_command('infer_practice_boundaries')
          self.assertEqual(has_boundary.count(), should_have_boundary.count())
  
subject: Add basic smoketest