Mercurial > hg
view tests/test-propertycache.py @ 26845:7a77ee434179
help: replace some str.split() calls by str.partition() or str.rpartition()
Since Python 2.5 str has new methods: partition and rpartition. They are more
specialized than the usual split and rsplit, and they sometimes convey the
intent of code better and also are a bit faster (faster than split/rsplit with
maxsplit specified). Let's use them in appropriate places for a small speedup.
Example performance (partition):
$ python -m timeit 'assert "apple|orange|banana".split("|")[0] == "apple"'
1000000 loops, best of 3: 0.376 usec per loop
$ python -m timeit 'assert "apple|orange|banana".split("|", 1)[0] == "apple"'
1000000 loops, best of 3: 0.327 usec per loop
$ python -m timeit 'assert "apple|orange|banana".partition("|")[0] == "apple"'
1000000 loops, best of 3: 0.214 usec per loop
Example performance (rpartition):
$ python -m timeit 'assert "apple|orange|banana".rsplit("|")[-1] == "banana"'
1000000 loops, best of 3: 0.372 usec per loop
$ python -m timeit 'assert "apple|orange|banana".rsplit("|", 1)[-1] == "banana"'
1000000 loops, best of 3: 0.332 usec per loop
$ python -m timeit 'assert "apple|orange|banana".rpartition("|")[-1] == "banana"'
1000000 loops, best of 3: 0.219 usec per loop
author | Anton Shestakov <av6@dwimlabs.net> |
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date | Mon, 02 Nov 2015 23:37:14 +0800 |
parents | 7731a2281cf0 |
children | 84673a7c54af |
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"""test behavior of propertycache and unfiltered propertycache The repoview overlay is quite complex. We test the behavior of property cache of both localrepo and repoview to prevent regression.""" import os, subprocess import mercurial.localrepo import mercurial.repoview import mercurial.util import mercurial.hg import mercurial.ui as uimod # create some special property cache that trace they call calllog = [] @mercurial.util.propertycache def testcachedfoobar(repo): name = repo.filtername if name is None: name = '' val = len(name) calllog.append(val) return val unficalllog = [] @mercurial.localrepo.unfilteredpropertycache def testcachedunfifoobar(repo): name = repo.filtername if name is None: name = '' val = 100 + len(name) unficalllog.append(val) return val #plug them on repo mercurial.localrepo.localrepository.testcachedfoobar = testcachedfoobar mercurial.localrepo.localrepository.testcachedunfifoobar = testcachedunfifoobar # Create an empty repo and instantiate it. It is important to run # these tests on the real object to detect regression. repopath = os.path.join(os.environ['TESTTMP'], 'repo') assert subprocess.call(['hg', 'init', repopath]) == 0 ui = uimod.ui() repo = mercurial.hg.repository(ui, path=repopath).unfiltered() print '' print '=== property cache ===' print '' print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print '' print '= first access on unfiltered, should do a call' print 'access:', repo.testcachedfoobar print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print '' print '= second access on unfiltered, should not do call' print 'access', repo.testcachedfoobar print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print '' print '= first access on "visible" view, should do a call' visibleview = repo.filtered('visible') print 'cached value ("visible" view):', print vars(visibleview).get('testcachedfoobar', 'NOCACHE') print 'access:', visibleview.testcachedfoobar print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print 'cached value ("visible" view):', print vars(visibleview).get('testcachedfoobar', 'NOCACHE') print '' print '= second access on "visible view", should not do call' print 'access:', visibleview.testcachedfoobar print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print 'cached value ("visible" view):', print vars(visibleview).get('testcachedfoobar', 'NOCACHE') print '' print '= no effect on other view' immutableview = repo.filtered('immutable') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedfoobar', 'NOCACHE') print 'access:', immutableview.testcachedfoobar print 'calllog:', calllog print 'cached value (unfiltered):', print vars(repo).get('testcachedfoobar', 'NOCACHE') print 'cached value ("visible" view):', print vars(visibleview).get('testcachedfoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedfoobar', 'NOCACHE') # unfiltered property cache test print '' print '' print '=== unfiltered property cache ===' print '' print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE') print '' print '= first access on unfiltered, should do a call' print 'access (unfiltered):', repo.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print '' print '= second access on unfiltered, should not do call' print 'access (unfiltered):', repo.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print '' print '= access on view should use the unfiltered cache' print 'access (unfiltered): ', repo.testcachedunfifoobar print 'access ("visible" view): ', visibleview.testcachedunfifoobar print 'access ("immutable" view):', immutableview.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE') print '' print '= even if we clear the unfiltered cache' del repo.__dict__['testcachedunfifoobar'] print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE') print 'unficalllog:', unficalllog print 'access ("visible" view): ', visibleview.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE') print 'access ("immutable" view):', immutableview.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE') print 'access (unfiltered): ', repo.testcachedunfifoobar print 'unficalllog:', unficalllog print 'cached value (unfiltered): ', print vars(repo).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("visible" view): ', print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE') print 'cached value ("immutable" view):', print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')