new_contents: from django.test import SimpleTestCase
  
  
  class OtherTest(SimpleTestCase):
      """
      In reality, apps often can have so many tests this is a more practical
      organising pattern.
      """
  
      def test_success(self):
          self.assertEqual(1 + 1, 2)
  
  
subject: Document from the reality that while breaking apps down is a good idea, even then you often have a sufficient number of topic areas to cover that can't be easily split into more apps, i.e. TestCase classes are insufficient to group the relevant tests together, and a 5k tests.py file is almost certainly a bad idea.