Mercurial > hgsubversion
view tests/test_fetch_truncated.py @ 1457:019c3e194fba
tests: optimise creating repositories and loading dumps
Previously, we'd use svnadmin for creating repositories and loading
dumps. That tends to be a bit slow, as it forks a new process and
loads the Subversion libraries into it. Instead, we extend our
existing Subversion wrappers and load the dumps using the API.
This is a noticable speedup. The only downside is that we rely on
Subversion and Subvertpy to correctly close all file descriptors; an
assumption which hasn't always held in the past.
I ran some benchmarks on my relatively slow Mac with $TMPDIR on a
ramdisk, and they showed a significant change:
I compared ten runs of each with Subvertpy:
min: -18.8% (299.1s -> 243.0s)
median: -20.0% (307.1s -> 245.6s)
...and three runs of each with SWIG:
min: -22.8% (368.7s -> 284.7s)
median: -25.7% (384.4s -> 285.5s)
(Since the timing measures wall clock time, the minimum time is likely
to be the most accurate and useful measurement.)
| author | Dan Villiom Podlaski Christiansen <danchr@gmail.com> |
|---|---|
| date | Tue, 07 Jun 2016 09:15:53 +0200 |
| parents | 825fd4c0396c |
| children |
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import test_util import unittest from mercurial import commands from mercurial import hg class TestFetchTruncatedHistory(test_util.TestBase): stupid_mode_tests = True def test_truncated_history(self): # Test repository does not follow the usual layout repo_path = self.load_svndump('truncatedhistory.svndump') svn_url = test_util.fileurl(repo_path + '/project2') commands.clone(self.ui(), svn_url, self.wc_path, noupdate=True) repo = hg.repository(self.ui(), self.wc_path) # We are converting /project2/trunk coming from: # # Changed paths: # D /project1 # A /project2/trunk (from /project1:2) # # Here a full fetch should be performed since we are starting # the conversion on an already filled branch. tip = repo['tip'] files = tip.manifest().keys() files.sort() self.assertEqual(files, ['a', 'b']) self.assertEqual(repo['tip']['a'].data(), 'a\n')