tests/mocktime.py

auto-upgrade: add a test case where the repository is already locked

This show the current behavior when the repository to auto-upgrade is already
locked.

The current behavior is to abort, which is probably not great. Now that we have
a proper test, we can think about the behavior we wants in a later tests.

Differential Revision: https://phab.mercurial-scm.org/D12618

import os
import time


class mocktime:
    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'))