72 lines
3.0 KiB
Python
72 lines
3.0 KiB
Python
# Copyright (c) 2018 gevent community
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
from __future__ import absolute_import, print_function, division
|
|
|
|
from contextlib import contextmanager
|
|
from gevent.hub import Hub
|
|
|
|
from .exception import ExpectedException
|
|
|
|
class QuietHub(Hub):
|
|
_resolver = None
|
|
_threadpool = None
|
|
|
|
EXPECTED_TEST_ERROR = (ExpectedException,)
|
|
IGNORE_EXPECTED_TEST_ERROR = False
|
|
|
|
@contextmanager
|
|
def ignoring_expected_test_error(self):
|
|
"""
|
|
Code in the body of this context manager will ignore
|
|
``EXPECTED_TEST_ERROR`` objects reported to ``handle_error``;
|
|
they will not get a chance to go to the hub's parent.
|
|
|
|
This completely changes the semantics of normal error handling
|
|
by avoiding some switches (to the main greenlet, and eventually
|
|
once a callback is processed, back to the hub). This should be used
|
|
in narrow ways for test compatibility for tests that assume
|
|
``ExpectedException`` objects behave this way.
|
|
"""
|
|
old = self.IGNORE_EXPECTED_TEST_ERROR
|
|
self.IGNORE_EXPECTED_TEST_ERROR = True
|
|
try:
|
|
yield
|
|
finally:
|
|
self.IGNORE_EXPECTED_TEST_ERROR = old
|
|
|
|
def handle_error(self, context, type, value, tb):
|
|
type, value, tb = self._normalize_exception(type, value, tb)
|
|
# If we check that the ``type`` is a subclass of ``EXPECTED_TEST_ERROR``,
|
|
# and return, we completely change the semantics: We avoid raising
|
|
# this error in the main greenlet, which cuts out several switches.
|
|
# Overall, not good.
|
|
|
|
if self.IGNORE_EXPECTED_TEST_ERROR and issubclass(type, self.EXPECTED_TEST_ERROR):
|
|
# Don't pass these up; avoid switches
|
|
return
|
|
return Hub.handle_error(self, context, type, value, tb)
|
|
|
|
def print_exception(self, context, t, v, tb):
|
|
t, v, tb = self._normalize_exception(t, v, tb)
|
|
if issubclass(t, self.EXPECTED_TEST_ERROR):
|
|
# see handle_error
|
|
return
|
|
return Hub.print_exception(self, context, t, v, tb)
|