def METHOD_NAME(self):
    User.objects.create(username="admin")
    call_command(
        "createinitialsuperuser",
        "--username=admin",
        "--password=admin",
        "--email=admin@example.com",
        "--no-input",
        stdout=io.StringIO(),
    )
    self.assertEqual(User.objects.count(), 1)
    user = User.objects.get()
    self.assertFalse(user.is_staff)
    self.assertFalse(user.is_superuser)
    self.assertEqual(user.username, "admin")
    self.assertEqual(user.email, "")
    self.assertFalse(user.check_password("admin"))