Mercurial > p > roundup > code
view test/test_locking.py @ 4472:34dce76bb202
Multilink fixes and optimizations:
- Optimisation: Late evaluation of Multilinks (only in rdbms backends):
previously we materialized each multilink in a Node -- this creates an
SQL query for each multilink (e.g. 'files' and 'messages' for each
line in the issue index display) -- even if the multilinks aren't
displayed. Now we compute multilinks only if they're accessed (and
keep them cached).
- Add a filter_iter similar to the existing filter call. This feature is
considered experimental. This is currently not used in the
web-interface but passes all tests for the filter call except sorting
by Multilinks (which isn't supported by SQL and isn't a sane concept
anyway). When using filter_iter instead of filter this saves a *lot*
of SQL queries: Filter returns only the IDs of Nodes in the database,
the additional content of a Node has to be fetched in a separate SQL
call. The new filter_iter also returns the IDs of Nodes (one by one,
it's an iterator) but pre-seeds the cache with the content of the
Node. The information needed for seeding the cache is retrieved in the
same SQL query as the ids.
| author | Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net> |
|---|---|
| date | Mon, 21 Mar 2011 20:44:39 +0000 |
| parents | f63aa57386b0 |
| children | 6e3e4f24c753 |
line wrap: on
line source
# Copyright (c) 2002 ekit.com Inc (http://www.ekit-inc.com/) # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. # $Id: test_locking.py,v 1.4 2003-10-25 22:53:26 richard Exp $ import os, unittest, tempfile from roundup.backends.locking import acquire_lock, release_lock class LockingTest(unittest.TestCase): def setUp(self): self.path = tempfile.mktemp() open(self.path, 'w').write('hi\n') # XXX test disabled because it simply doesn't work on many platforms # (Solaris and Irix are known to fail, but Linux works) def xtest_basics(self): f = acquire_lock(self.path) try: acquire_lock(self.path, block=0) except: pass else: raise AssertionError, 'no exception' release_lock(f) f = acquire_lock(self.path) release_lock(f) def tearDown(self): os.remove(self.path) def test_suite(): suite = unittest.TestSuite() suite.addTest(unittest.makeSuite(LockingTest)) return suite if __name__ == '__main__': runner = unittest.TextTestRunner() unittest.main(testRunner=runner) # vim: set filetype=python ts=4 sw=4 et si
