view tests/lockdelay.py @ 29107:c8fbfb9163ce

sslutil: move code examining _canloaddefaultcerts out of _defaultcacerts

Before, the return of _defaultcacerts() was 1 of 3 types. This was
difficult to read. Make it return a path or None.

We had to update hghave.py in the same patch because it was also
looking at this internal function. I wasted dozens of minutes
trying to figure out why tests were failing until I found the
code in hghave.py...

# 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

from mercurial import (
    lock as lockmod,
)

class delaylock(lockmod.lock):
    def lock(self):
        delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))
        if delay:
            time.sleep(delay)
        res = super(delaylock, self).lock()
        delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))
        if delay:
            time.sleep(delay)
        return res

def extsetup(ui):
    lockmod.lock = delaylock