Mercurial > hg
view tests/lockdelay.py @ 49214:eca367970253 stable
run-tests: send the test result after freeing the channel
Sending the message about the test being "done" signals to the main thread that
a new test can be started. Before this changeset, we sent this signal before
freeing the channel, there is room for a race condition where a new test would
search for a channel before the old test freed the one it used.
This is an example of the failure it would produce:
https://foss.heptapod.net/mercurial/mercurial-devel/-/jobs/552404
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 24 May 2022 09:57:53 +0200 |
parents | f6c67bb4ca03 |
children | 6000f5b25c9b |
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# Dummy extension that adds a delay after acquiring a lock. # # This extension can be used to test race conditions between lock acquisition. from __future__ import absolute_import import os import time def reposetup(ui, repo): class delayedlockrepo(repo.__class__): def lock(self, wait=True): delay = float(os.environ.get('HGPRELOCKDELAY', '0.0')) if delay: time.sleep(delay) res = super(delayedlockrepo, self).lock(wait=wait) delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0')) if delay: time.sleep(delay) return res repo.__class__ = delayedlockrepo