new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import json
  
  import unittest
  
  from downstream_node.startup import app
  
  
  class TestDownstream(unittest.TestCase):
      def setUp(self):
          self.app = app.test_client()
          app.config['TESTING'] = True
  
      def tearDown(self):
          del self.app
  
      def test_api_downstream_challenge(self):
          r = self.app.get('/api/downstream/challenges/test')
          self.assertEqual(r.status_code, 200)
          self.assertEqual(r.content_type, 'application/json')
  
          r_json = json.loads(r.data)
          self.assertIsInstance(r_json, dict)
          self.assertEqual(len(r_json.get('challenges')), 1000)
          self.assertEqual(r_json.get('challenges')[0].get('filename'), 'thirty-two_meg.testfile')
  
      def test_api_downstream_challenge_answer(self):
          r = self.app.get('api/downstream/challenges/answer/test')
  
  
  
  if __name__ == '__main__':
      unittest.main()
subject: Add beginning of unittests