'Test our assignment tag, also ends up testing the update_blogs
management command'

def test_get_latest_entries(self):

    Feed.objects.create(id=1, name='psf    default', website_url='example.org', feed_url=self.test_file_path)
    entries = None
    call_command('update_blogs')
    entries = get_latest_blog_entries()
    self.assertEqual(len(entries), 5)
    self.assertEqual(entries[0].pub_date.isoformat(), '2013-03-04T15:00:00+00:00')
    b = Box.objects.get(label='supernav-python-blog')
    rendered_box = _render_blog_supernav(BlogEntry.objects.latest())
    self.assertEqual(b.content.raw, rendered_box)
