view tests/failfilemerge.py @ 50189:6065a8936b00

narrow: write the narrow spec in a transaction during clone

It will be simpler if all write happens within transaction.

# extension to emulate interrupting filemerge._filemerge


from mercurial import (
    error,
    extensions,
    filemerge,
)


def failfilemerge(*args, **kwargs):
    raise error.Abort(b"^C")


def extsetup(ui):
    extensions.wrapfunction(filemerge, 'filemerge', failfilemerge)