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# -*- coding: utf-8 -*-
# Unit tests for cache framework
# Uses whatever cache backend is set in the test settings file.
import time, unittest
from django.core.cache import cache
from django.utils.cache import patch_vary_headers
from django.http import HttpResponse
# functions/classes for complex data type tests
def f():
return 42
class C:
def m(n):
return 24
class Cache(unittest.TestCase):
def test_simple(self):
# simple set/get
cache.set("key", "value")
self.assertEqual(cache.get("key"), "value")
def test_add(self):
# test add (only add if key isn't already in cache)
cache.add("addkey1", "value")
cache.add("addkey1", "newvalue")
self.assertEqual(cache.get("addkey1"), "value")
def test_non_existent(self):
# get with non-existent keys
self.assertEqual(cache.get("does_not_exist"), None)
self.assertEqual(cache.get("does_not_exist", "bang!"), "bang!")
def test_get_many(self):
# get_many
cache.set('a', 'a')
cache.set('b', 'b')
cache.set('c', 'c')
cache.set('d', 'd')
self.assertEqual(cache.get_many(['a', 'c', 'd']), {'a' : 'a', 'c' : 'c', 'd' : 'd'})
self.assertEqual(cache.get_many(['a', 'b', 'e']), {'a' : 'a', 'b' : 'b'})
def test_delete(self):
# delete
cache.set("key1", "spam")
cache.set("key2", "eggs")
self.assertEqual(cache.get("key1"), "spam")
cache.delete("key1")
self.assertEqual(cache.get("key1"), None)
self.assertEqual(cache.get("key2"), "eggs")
def test_has_key(self):
# has_key
cache.set("hello1", "goodbye1")
self.assertEqual(cache.has_key("hello1"), True)
self.assertEqual(cache.has_key("goodbye1"), False)
def test_in(self):
cache.set("hello2", "goodbye2")
self.assertEqual("hello2" in cache, True)
self.assertEqual("goodbye2" in cache, False)
def test_data_types(self):
stuff = {
'string' : 'this is a string',
'int' : 42,
'list' : [1, 2, 3, 4],
'tuple' : (1, 2, 3, 4),
'dict' : {'A': 1, 'B' : 2},
'function' : f,
'class' : C,
}
def test_expiration(self):
# expiration
cache.set('expire', 'very quickly', 1)
time.sleep(2)
self.assertEqual(cache.get("expire"), None)
def test_unicode(self):
stuff = {
u'ascii': u'ascii_value',
u'unicode_ascii': u'Iñtërnâtiônàlizætiøn1',
u'Iñtërnâtiônàlizætiøn': u'Iñtërnâtiônàlizætiøn2',
u'ascii': {u'x' : 1 }
}
for (key, value) in stuff.items():
cache.set(key, value)
self.assertEqual(cache.get(key), value)
class CacheUtils(unittest.TestCase):
"""TestCase for django.utils.cache functions."""
def test_patch_vary_headers(self):
headers = (
# Initial vary, new headers, resulting vary.
(None, ('Accept-Encoding',), 'Accept-Encoding'),
('Accept-Encoding', ('accept-encoding',), 'Accept-Encoding'),
('Accept-Encoding', ('ACCEPT-ENCODING',), 'Accept-Encoding'),
('Cookie', ('Accept-Encoding',), 'Cookie, Accept-Encoding'),
('Cookie, Accept-Encoding', ('Accept-Encoding',), 'Cookie, Accept-Encoding'),
('Cookie, Accept-Encoding', ('Accept-Encoding', 'cookie'), 'Cookie, Accept-Encoding'),
(None, ('Accept-Encoding', 'COOKIE'), 'Accept-Encoding, COOKIE'),
('Cookie, Accept-Encoding', ('Accept-Encoding', 'cookie'), 'Cookie, Accept-Encoding'),
('Cookie , Accept-Encoding', ('Accept-Encoding', 'cookie'), 'Cookie, Accept-Encoding'),
)
for initial_vary, newheaders, resulting_vary in headers:
response = HttpResponse()
if initial_vary is not None:
response['Vary'] = initial_vary
patch_vary_headers(response, newheaders)
self.assertEqual(response['Vary'], resulting_vary)
if __name__ == '__main__':
unittest.main()
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