tests/mockblackbox.py

transaction: display data about why the transaction failed to rollback

We saw more of these a while back. Having more data available would be nice.

from __future__ import absolute_import
from mercurial.utils import (
    procutil,
)

# XXX: we should probably offer a devel option to do this in blackbox directly
def getuser():
    return b'bob'
def getpid():
    return 5000

# mock the date and user apis so the output is always the same
def uisetup(ui):
    procutil.getuser = getuser
    procutil.getpid = getpid