annotate tests/failfilemerge.py @ 50795:193a6e9a56f3

wrapfunction: use sysstr instead of bytes as argument in "perf"

This is as valid and simpler, it will help us to eventually get ride of
`safehasattr`.

# 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)