title: Django Unit Test for testing a file download
body: <p>Right now I'm just checking the response of the link like so:</p>
  
  <pre><code>self.client = Client()
  response = self.client.get(url)
  self.assertEqual(response.status_code, 200)
  </code></pre>
  
  <p>Is there a Django-ic way to test a link to see if a file download event actually takes place? Can't seem to find much resource on this topic.</p>