How to write tests for methods of this manager?

Question

Django

How to write tests in pytest?

class OperatorLogManager(models.Manager):
    def active(self):
       """Mark object as active"""
        return self.filter(is_delete=False)

     def get_by_user_id(self, id):
          return self.active().filter(pk=id)

     def get_by_client_id(self, client_uid):
          return self.active().filter(client_uid=client_uid)