qutebrowser/qutebrowser/test/helpers.py
2014-08-26 19:10:14 +02:00

51 lines
1.5 KiB
Python

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# This file is part of qutebrowser.
#
# qutebrowser is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutebrowser is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
"""Helpers needed by tests."""
import os
import contextlib
from unittest import mock
from PyQt5.QtGui import QKeyEvent
@contextlib.contextmanager
def environ_set_temp(name, value):
"""Set a temporary environment variable."""
try:
oldval = os.environ[name]
except KeyError:
oldval = None
os.environ[name] = value
yield
if oldval is not None:
os.environ[name] = oldval
else:
del os.environ[name]
def fake_keyevent(key, modifiers=0, text=''):
"""Generate a new fake QKeyPressEvent."""
evtmock = mock.create_autospec(QKeyEvent, instance=True)
evtmock.key.return_value = key
evtmock.modifiers.return_value = modifiers
evtmock.text.return_value = text
return evtmock