Mercurial > hg
view tests/test-dispatch.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 | c1d93edcf004 |
children | 7109d5ddeb0c |
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test command parsing and dispatch $ hg init a $ cd a Redundant options used to crash (issue436): $ hg -v log -v $ hg -v log -v x $ echo a > a $ hg ci -Ama adding a Missing arg: $ hg cat hg cat: invalid arguments hg cat [OPTION]... FILE... output the current or given revision of files options ([+] can be repeated): -o --output FORMAT print output to file with formatted name -r --rev REV print the given revision --decode apply any matching decode filter -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns (use "hg cat -h" to show more help) [255] [defaults] $ hg cat a a $ cat >> $HGRCPATH <<EOF > [defaults] > cat = -r null > EOF $ hg cat a a: no such file in rev 000000000000 [1] $ cd "$TESTTMP" OSError "No such file or directory" / "The system cannot find the path specified" should include filename even when it is empty $ hg -R a archive '' abort: *: '' (glob) [255] #if no-outer-repo No repo: $ hg cat abort: no repository found in '$TESTTMP' (.hg not found)! [255] #endif