mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-25 16:28:11 +00:00
118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2015 GNS3 Technologies Inc.
|
|
#
|
|
# This program 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.
|
|
#
|
|
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import io
|
|
import types
|
|
import asyncio
|
|
import unittest.mock
|
|
|
|
|
|
class _asyncio_patch:
|
|
|
|
"""
|
|
A wrapper around python patch supporting asyncio.
|
|
Like the original patch you can use it as context
|
|
manager (with)
|
|
|
|
The original patch source code is the main source of
|
|
inspiration:
|
|
https://hg.python.org/cpython/file/3.4/Lib/unittest/mock.py
|
|
"""
|
|
|
|
def __init__(self, function, *args, **kwargs):
|
|
self.function = function
|
|
self.args = args
|
|
self.kwargs = kwargs
|
|
|
|
def __enter__(self):
|
|
"""Used when enter in the with block"""
|
|
self._patcher = unittest.mock.patch(self.function, return_value=self._fake_anwser())
|
|
mock_class = self._patcher.start()
|
|
return mock_class
|
|
|
|
def __exit__(self, *exc_info):
|
|
"""Used when leaving the with block"""
|
|
self._patcher.stop()
|
|
|
|
def _fake_anwser(self):
|
|
future = asyncio.Future()
|
|
if "return_value" in self.kwargs:
|
|
future.set_result(self.kwargs["return_value"])
|
|
elif "side_effect" in self.kwargs:
|
|
if isinstance(self.kwargs["side_effect"], Exception):
|
|
future.set_exception(self.kwargs["side_effect"])
|
|
else:
|
|
raise NotImplementedError
|
|
else:
|
|
future.set_result(True)
|
|
return future
|
|
|
|
|
|
def asyncio_patch(function, *args, **kwargs):
|
|
return _asyncio_patch(function, *args, **kwargs)
|
|
|
|
|
|
class AsyncioMagicMock(unittest.mock.MagicMock):
|
|
"""
|
|
Magic mock returning coroutine
|
|
"""
|
|
try:
|
|
__class__ = types.CoroutineType
|
|
except AttributeError: # Not supported with Python 3.4
|
|
__class__ = types.GeneratorType
|
|
|
|
def __init__(self, return_value=None, return_values=None, **kwargs):
|
|
"""
|
|
:return_values: Array of return value at each call will return the next
|
|
"""
|
|
if return_value is not None:
|
|
future = asyncio.Future()
|
|
future.set_result(return_value)
|
|
kwargs["return_value"] = future
|
|
super().__init__(**kwargs)
|
|
|
|
def _get_child_mock(self, **kw):
|
|
"""Create the child mocks for attributes and return value.
|
|
By default child mocks will be the same type as the parent.
|
|
Subclasses of Mock may want to override this to customize the way
|
|
child mocks are made.
|
|
For non-callable mocks the callable variant will be used (rather than
|
|
any custom subclass).
|
|
|
|
Original code: https://github.com/python/cpython/blob/121f86338111e49c547a55eb7f26db919bfcbde9/Lib/unittest/mock.py
|
|
"""
|
|
return AsyncioMagicMock(**kw)
|
|
|
|
|
|
class AsyncioBytesIO(io.BytesIO):
|
|
"""
|
|
An async wrapper arround io.BytesIO to fake an
|
|
async network connection
|
|
"""
|
|
|
|
@asyncio.coroutine
|
|
def read(self, length=-1):
|
|
return super().read(length)
|
|
|
|
@asyncio.coroutine
|
|
def write(self, data):
|
|
return super().write(data)
|
|
|
|
@asyncio.coroutine
|
|
def close(self):
|
|
return super().close()
|