Add a unit test for server expiring cookies from session

test_requests.py

@@ -124,6 +124,19 @@ def test_cookie_sent_on_redirect(self):
  r = s.get(httpbin('redirect/1')) # redirects to httpbin('get')
  self.assertTrue("Cookie" in r.json()["headers"])
 
+ def test_cookie_removed_on_expire(self):
+ s = requests.session()
+ s.get(httpbin('cookies/set?foo=bar'))
+ self.assertTrue(s.cookies['foo'] == 'bar')
+ s.get(
+ httpbin('response-headers'),
+ params={
+ 'Set-Cookie':
+ 'foo=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT'
+ }
+ )
+ self.assertNotIn('foo', s.cookies)
+
  def test_user_agent_transfers(self):
 
  heads = {