old_contents: from django.test import TestCase
  
  from questions.models import Question, ASKED
  
  
  class QuestionsFixture(TestCase):
  
      subject = expected_subject = "What is the meaining of life?"
  
      def setUp(self):
          self.question = Question(
              subject=self.subject
          )
  
      def test_it_exists(self):
          self.assertEquals(self.question.subject, self.expected_subject)
          self.assertEquals(self.question.status, ASKED)
          self.assertEquals(self.question.content, "")
  
new_contents: from django.test import TestCase
  
  from questions import constants
  from questions.models import Question
  
  
  class QuestionsFixture(TestCase):
  
      subject = expected_subject = "What is the meaining of life?"
  
      def setUp(self):
          self.question = Question(
              subject=self.subject
          )
  
      def test_it_exists(self):
          self.assertEquals(self.question.subject, self.expected_subject)
          self.assertEquals(self.question.status, constants.ASKED)
          self.assertEquals(self.question.content, "")
  
subject: fix import error