django/tests/signed_cookies_tests/tests.py

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from __future__ import unicode_literals
import time
from django.core import signing
from django.http import HttpRequest, HttpResponse
from django.test import TestCase, override_settings
class SignedCookieTest(TestCase):
def test_can_set_and_read_signed_cookies(self):
response = HttpResponse()
response.set_signed_cookie('c', 'hello')
self.assertIn('c', response.cookies)
self.assertTrue(response.cookies['c'].value.startswith('hello:'))
request = HttpRequest()
request.COOKIES['c'] = response.cookies['c'].value
value = request.get_signed_cookie('c')
self.assertEqual(value, 'hello')
def test_can_use_salt(self):
response = HttpResponse()
response.set_signed_cookie('a', 'hello', salt='one')
request = HttpRequest()
request.COOKIES['a'] = response.cookies['a'].value
value = request.get_signed_cookie('a', salt='one')
self.assertEqual(value, 'hello')
self.assertRaises(signing.BadSignature,
request.get_signed_cookie, 'a', salt='two')
def test_detects_tampering(self):
response = HttpResponse()
response.set_signed_cookie('c', 'hello')
request = HttpRequest()
request.COOKIES['c'] = response.cookies['c'].value[:-2] + '$$'
self.assertRaises(signing.BadSignature,
request.get_signed_cookie, 'c')
def test_default_argument_suppresses_exceptions(self):
response = HttpResponse()
response.set_signed_cookie('c', 'hello')
request = HttpRequest()
request.COOKIES['c'] = response.cookies['c'].value[:-2] + '$$'
self.assertEqual(request.get_signed_cookie('c', default=None), None)
def test_max_age_argument(self):
value = 'hello'
_time = time.time
time.time = lambda: 123456789
try:
response = HttpResponse()
response.set_signed_cookie('c', value)
request = HttpRequest()
request.COOKIES['c'] = response.cookies['c'].value
self.assertEqual(request.get_signed_cookie('c'), value)
time.time = lambda: 123456800
self.assertEqual(request.get_signed_cookie('c', max_age=12), value)
self.assertEqual(request.get_signed_cookie('c', max_age=11), value)
self.assertRaises(signing.SignatureExpired,
2013-11-04 02:17:58 +08:00
request.get_signed_cookie, 'c', max_age=10)
finally:
time.time = _time
@override_settings(SECRET_KEY=b'\xe7')
def test_signed_cookies_with_binary_key(self):
response = HttpResponse()
response.set_signed_cookie('c', 'hello')
request = HttpRequest()
request.COOKIES['c'] = response.cookies['c'].value
self.assertEqual(request.get_signed_cookie('c'), 'hello')