Mercurial > hg
view tests/test-push-validation.t @ 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> |
---|---|
date | Mon, 02 Nov 2015 23:37:14 +0800 |
parents | ef60083b5536 |
children | 2a03a365f645 |
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$ hg init test $ cd test $ cat > .hg/hgrc <<EOF > [server] > validate=1 > EOF $ echo alpha > alpha $ echo beta > beta $ hg addr adding alpha adding beta $ hg ci -m 1 $ cd .. $ hg clone test test-clone updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved Test spurious filelog entries: $ cd test-clone $ echo blah >> beta $ cp .hg/store/data/beta.i tmp1 $ hg ci -m 2 $ cp .hg/store/data/beta.i tmp2 $ hg -q rollback $ mv tmp2 .hg/store/data/beta.i $ echo blah >> beta $ hg ci -m '2 (corrupt)' Expected to fail: $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files beta@1: dddc47b3ba30 not in manifests 2 files, 2 changesets, 4 total revisions 1 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ hg push pushing to $TESTTMP/test (glob) searching for changes adding changesets adding manifests adding file changes transaction abort! rollback completed abort: received spurious file revlog entry [255] $ hg -q rollback $ mv tmp1 .hg/store/data/beta.i $ echo beta > beta Test missing filelog entries: $ cp .hg/store/data/beta.i tmp $ echo blah >> beta $ hg ci -m '2 (corrupt)' $ mv tmp .hg/store/data/beta.i Expected to fail: $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files beta@1: dddc47b3ba30 in manifests not found 2 files, 2 changesets, 2 total revisions 1 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ hg push pushing to $TESTTMP/test (glob) searching for changes adding changesets adding manifests adding file changes transaction abort! rollback completed abort: missing file data for beta:dddc47b3ba30e54484720ce0f4f768a0f4b6efb9 - run hg verify [255] $ cd ..