tests/mocktime.py

run-tests: don't mask errors when a server fails to start

There are sporadic instances of this on Windows.  They seem to happen more
frequently after the test machine is rebooted, although the only way to hit it
on my laptop is to loop certain tests with -j9 for hours.  The problem with
masking out the specific failure is that there's no way to know if it's the same
line in the test that's failing, or if it is random.

The justification for adding this masking in 52e9e63f1495 was that the failures
occur regularly, but that's not the case anymore.  The port number is still
printed, in case that turns out to be useful.

from __future__ import absolute_import

import os
import time

class mocktime(object):
    def __init__(self, increment):
        self.time = 0
        self.increment = [float(s) for s in increment.split()]
        self.pos = 0

    def __call__(self):
        self.time += self.increment[self.pos % len(self.increment)]
        self.pos += 1
        return self.time

def uisetup(ui):
    time.time = mocktime(os.environ.get('MOCKTIME', '0.1'))