mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-14 20:12:19 -05:00
324 lines
9.8 KiB
Python
324 lines
9.8 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright 2007 Doug Hellmann.
|
|
#
|
|
#
|
|
# All Rights Reserved
|
|
#
|
|
# Permission to use, copy, modify, and distribute this software and
|
|
# its documentation for any purpose and without fee is hereby
|
|
# granted, provided that the above copyright notice appear in all
|
|
# copies and that both that copyright notice and this permission
|
|
# notice appear in supporting documentation, and that the name of Doug
|
|
# Hellmann not be used in advertising or publicity pertaining to
|
|
# distribution of the software without specific, written prior
|
|
# permission.
|
|
#
|
|
# DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
|
|
# NO EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
|
|
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
|
|
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
#
|
|
|
|
"""Unittests for feedcache.cache
|
|
|
|
"""
|
|
|
|
__module_id__ = "$Id$"
|
|
|
|
import logging
|
|
logging.basicConfig(level=logging.DEBUG,
|
|
format='%(asctime)s %(levelname)-8s %(name)s %(message)s',
|
|
)
|
|
logger = logging.getLogger('feedcache.test_cache')
|
|
|
|
#
|
|
# Import system modules
|
|
#
|
|
import copy
|
|
import time
|
|
import unittest
|
|
import UserDict
|
|
|
|
#
|
|
# Import local modules
|
|
#
|
|
import cache
|
|
from test_server import HTTPTestBase, TestHTTPServer
|
|
|
|
#
|
|
# Module
|
|
#
|
|
|
|
|
|
class CacheTestBase(HTTPTestBase):
|
|
|
|
CACHE_TTL = 30
|
|
|
|
def setUp(self):
|
|
HTTPTestBase.setUp(self)
|
|
|
|
self.storage = self.getStorage()
|
|
self.cache = cache.Cache(self.storage,
|
|
timeToLiveSeconds=self.CACHE_TTL,
|
|
userAgent='feedcache.test',
|
|
)
|
|
return
|
|
|
|
def getStorage(self):
|
|
"Return a cache storage for the test."
|
|
return {}
|
|
|
|
|
|
class CacheTest(CacheTestBase):
|
|
|
|
CACHE_TTL = 30
|
|
|
|
def getServer(self):
|
|
"These tests do not want to use the ETag or If-Modified-Since headers"
|
|
return TestHTTPServer(applyModifiedHeaders=False)
|
|
|
|
def testRetrieveNotInCache(self):
|
|
# Retrieve data not already in the cache.
|
|
feed_data = self.cache.fetch(self.TEST_URL)
|
|
self.failUnless(feed_data)
|
|
self.failUnlessEqual(feed_data.feed.title, 'CacheTest test data')
|
|
return
|
|
|
|
def testRetrieveIsInCache(self):
|
|
# Retrieve data which is alread in the cache,
|
|
# and verify that the second copy is identitical
|
|
# to the first.
|
|
|
|
# First fetch
|
|
feed_data = self.cache.fetch(self.TEST_URL)
|
|
|
|
# Second fetch
|
|
feed_data2 = self.cache.fetch(self.TEST_URL)
|
|
|
|
# Since it is the in-memory storage, we should have the
|
|
# exact same object.
|
|
self.failUnless(feed_data is feed_data2)
|
|
return
|
|
|
|
def testExpireDataInCache(self):
|
|
# Retrieve data which is in the cache but which
|
|
# has expired and verify that the second copy
|
|
# is different from the first.
|
|
|
|
# First fetch
|
|
feed_data = self.cache.fetch(self.TEST_URL)
|
|
|
|
# Change the timeout and sleep to move the clock
|
|
self.cache.time_to_live = 0
|
|
time.sleep(1)
|
|
|
|
# Second fetch
|
|
feed_data2 = self.cache.fetch(self.TEST_URL)
|
|
|
|
# Since we reparsed, the cache response should be different.
|
|
self.failIf(feed_data is feed_data2)
|
|
return
|
|
|
|
def testForceUpdate(self):
|
|
# Force cache to retrieve data which is alread in the cache,
|
|
# and verify that the new data is different.
|
|
|
|
# Pre-populate the storage with bad data
|
|
self.cache.storage[self.TEST_URL] = (time.time() + 100, self.id())
|
|
|
|
# Fetch the data
|
|
feed_data = self.cache.fetch(self.TEST_URL, force_update=True)
|
|
|
|
self.failIfEqual(feed_data, self.id())
|
|
return
|
|
|
|
def testOfflineMode(self):
|
|
# Retrieve data which is alread in the cache,
|
|
# whether it is expired or not.
|
|
|
|
# Pre-populate the storage with data
|
|
self.cache.storage[self.TEST_URL] = (0, self.id())
|
|
|
|
# Fetch it
|
|
feed_data = self.cache.fetch(self.TEST_URL, offline=True)
|
|
|
|
self.failUnlessEqual(feed_data, self.id())
|
|
return
|
|
|
|
def testUnicodeURL(self):
|
|
# Pass in a URL which is unicode
|
|
|
|
url = unicode(self.TEST_URL)
|
|
feed_data = self.cache.fetch(url)
|
|
|
|
storage = self.cache.storage
|
|
key = unicode(self.TEST_URL).encode('UTF-8')
|
|
|
|
# Verify that the storage has a key
|
|
self.failUnless(key in storage)
|
|
|
|
# Now pull the data from the storage directly
|
|
storage_timeout, storage_data = self.cache.storage.get(key)
|
|
self.failUnlessEqual(feed_data, storage_data)
|
|
return
|
|
|
|
|
|
class SingleWriteMemoryStorage(UserDict.UserDict):
|
|
"""Cache storage which only allows the cache value
|
|
for a URL to be updated one time.
|
|
"""
|
|
|
|
def __setitem__(self, url, data):
|
|
if url in self.keys():
|
|
modified, existing = self[url]
|
|
# Allow the modified time to change,
|
|
# but not the feed content.
|
|
if data[1] != existing:
|
|
raise AssertionError('Trying to update cache for %s to %s' \
|
|
% (url, data))
|
|
UserDict.UserDict.__setitem__(self, url, data)
|
|
return
|
|
|
|
|
|
class CacheConditionalGETTest(CacheTestBase):
|
|
|
|
CACHE_TTL = 0
|
|
|
|
def getStorage(self):
|
|
return SingleWriteMemoryStorage()
|
|
|
|
def testFetchOnceForEtag(self):
|
|
# Fetch data which has a valid ETag value, and verify
|
|
# that while we hit the server twice the response
|
|
# codes cause us to use the same data.
|
|
|
|
# First fetch populates the cache
|
|
response1 = self.cache.fetch(self.TEST_URL)
|
|
self.failUnlessEqual(response1.feed.title, 'CacheTest test data')
|
|
|
|
# Remove the modified setting from the cache so we know
|
|
# the next time we check the etag will be used
|
|
# to check for updates. Since we are using an in-memory
|
|
# cache, modifying response1 updates the cache storage
|
|
# directly.
|
|
response1['modified'] = None
|
|
|
|
# This should result in a 304 status, and no data from
|
|
# the server. That means the cache won't try to
|
|
# update the storage, so our SingleWriteMemoryStorage
|
|
# should not raise and we should have the same
|
|
# response object.
|
|
response2 = self.cache.fetch(self.TEST_URL)
|
|
self.failUnless(response1 is response2)
|
|
|
|
# Should have hit the server twice
|
|
self.failUnlessEqual(self.server.getNumRequests(), 2)
|
|
return
|
|
|
|
def testFetchOnceForModifiedTime(self):
|
|
# Fetch data which has a valid Last-Modified value, and verify
|
|
# that while we hit the server twice the response
|
|
# codes cause us to use the same data.
|
|
|
|
# First fetch populates the cache
|
|
response1 = self.cache.fetch(self.TEST_URL)
|
|
self.failUnlessEqual(response1.feed.title, 'CacheTest test data')
|
|
|
|
# Remove the etag setting from the cache so we know
|
|
# the next time we check the modified time will be used
|
|
# to check for updates. Since we are using an in-memory
|
|
# cache, modifying response1 updates the cache storage
|
|
# directly.
|
|
response1['etag'] = None
|
|
|
|
# This should result in a 304 status, and no data from
|
|
# the server. That means the cache won't try to
|
|
# update the storage, so our SingleWriteMemoryStorage
|
|
# should not raise and we should have the same
|
|
# response object.
|
|
response2 = self.cache.fetch(self.TEST_URL)
|
|
self.failUnless(response1 is response2)
|
|
|
|
# Should have hit the server twice
|
|
self.failUnlessEqual(self.server.getNumRequests(), 2)
|
|
return
|
|
|
|
|
|
class CacheRedirectHandlingTest(CacheTestBase):
|
|
|
|
def _test(self, response):
|
|
# Set up the server to redirect requests,
|
|
# then verify that the cache is not updated
|
|
# for the original or new URL and that the
|
|
# redirect status is fed back to us with
|
|
# the fetched data.
|
|
|
|
self.server.setResponse(response, '/redirected')
|
|
|
|
response1 = self.cache.fetch(self.TEST_URL)
|
|
|
|
# The response should include the status code we set
|
|
self.failUnlessEqual(response1.get('status'), response)
|
|
|
|
# The response should include the new URL, too
|
|
self.failUnlessEqual(response1.href, self.TEST_URL + 'redirected')
|
|
|
|
# The response should not have been cached under either URL
|
|
self.failIf(self.TEST_URL in self.storage)
|
|
self.failIf(self.TEST_URL + 'redirected' in self.storage)
|
|
return
|
|
|
|
def test301(self):
|
|
self._test(301)
|
|
|
|
def test302(self):
|
|
self._test(302)
|
|
|
|
def test303(self):
|
|
self._test(303)
|
|
|
|
def test307(self):
|
|
self._test(307)
|
|
|
|
|
|
class CachePurgeTest(CacheTestBase):
|
|
|
|
def testPurgeAll(self):
|
|
# Remove everything from the cache
|
|
|
|
self.cache.fetch(self.TEST_URL)
|
|
self.failUnless(self.storage.keys(),
|
|
'Have no data in the cache storage')
|
|
|
|
self.cache.purge(None)
|
|
|
|
self.failIf(self.storage.keys(),
|
|
'Still have data in the cache storage')
|
|
return
|
|
|
|
def testPurgeByAge(self):
|
|
# Remove old content from the cache
|
|
|
|
self.cache.fetch(self.TEST_URL)
|
|
self.failUnless(self.storage.keys(),
|
|
'have no data in the cache storage')
|
|
|
|
time.sleep(1)
|
|
|
|
remains = (time.time(), copy.deepcopy(self.storage[self.TEST_URL][1]))
|
|
self.storage['http://this.should.remain/'] = remains
|
|
|
|
self.cache.purge(1)
|
|
|
|
self.failUnlessEqual(self.storage.keys(),
|
|
['http://this.should.remain/'])
|
|
return
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|