Mercurial > hgsubversion
view tests/test_diff.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 | c6b01fd34694 |
| children |
line wrap: on
line source
import test_util import unittest from mercurial import ui from hgsubversion import wrappers expected_diff_output = '''Index: alpha =================================================================== --- alpha\t(revision 3) +++ alpha\t(working copy) @@ -1,1 +1,3 @@ -file: alpha +alpha + +added line Index: foo =================================================================== new file mode 100644 --- foo\t(revision 0) +++ foo\t(working copy) @@ -0,0 +1,1 @@ +This is missing a newline. \ No newline at end of file ''' class DiffTests(test_util.TestBase): def test_diff_output(self): self._load_fixture_and_fetch('two_revs.svndump') self.commitchanges([('foo', 'foo', 'This is missing a newline.'), ('alpha', 'alpha', 'alpha\n\nadded line\n'), ]) u = test_util.testui() u.pushbuffer() wrappers.diff(lambda x, y, z: None, u, self.repo, svn=True) self.assertEqual(u.popbuffer(), expected_diff_output)