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# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import twisted
import twisted.logger
from twisted.trial import unittest
from synapse.util.logcontext import LoggingContextFilter
# Set up putting Synapse's logs into Trial's.
rootLogger = logging.getLogger()
log_format = (
"%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s"
)
class ToTwistedHandler(logging.Handler):
tx_log = twisted.logger.Logger()
def emit(self, record):
log_entry = self.format(record)
log_level = record.levelname.lower().replace('warning', 'warn')
self.tx_log.emit(
twisted.logger.LogLevel.levelWithName(log_level),
log_entry.replace("{", r"(").replace("}", r")"),
)
handler = ToTwistedHandler()
formatter = logging.Formatter(log_format)
handler.setFormatter(formatter)
handler.addFilter(LoggingContextFilter(request=""))
rootLogger.addHandler(handler)
def around(target):
"""A CLOS-style 'around' modifier, which wraps the original method of the
given instance with another piece of code.
@around(self)
def method_name(orig, *args, **kwargs):
return orig(*args, **kwargs)
"""
def _around(code):
name = code.__name__
orig = getattr(target, name)
def new(*args, **kwargs):
return code(orig, *args, **kwargs)
setattr(target, name, new)
return _around
class TestCase(unittest.TestCase):
"""A subclass of twisted.trial's TestCase which looks for 'loglevel'
attributes on both itself and its individual test methods, to override the
root logger's logging level while that test (case|method) runs."""
def __init__(self, methodName, *args, **kwargs):
super(TestCase, self).__init__(methodName, *args, **kwargs)
method = getattr(self, methodName)
level = getattr(method, "loglevel", getattr(self, "loglevel", logging.ERROR))
@around(self)
def setUp(orig):
# enable debugging of delayed calls - this means that we get a
# traceback when a unit test exits leaving things on the reactor.
twisted.internet.base.DelayedCall.debug = True
old_level = logging.getLogger().level
if old_level != level:
@around(self)
def tearDown(orig):
ret = orig()
logging.getLogger().setLevel(old_level)
return ret
logging.getLogger().setLevel(level)
return orig()
def assertObjectHasAttributes(self, attrs, obj):
"""Asserts that the given object has each of the attributes given, and
that the value of each matches according to assertEquals."""
for (key, value) in attrs.items():
if not hasattr(obj, key):
raise AssertionError("Expected obj to have a '.%s'" % key)
try:
self.assertEquals(attrs[key], getattr(obj, key))
except AssertionError as e:
raise (type(e))(e.message + " for '.%s'" % key)
def DEBUG(target):
"""A decorator to set the .loglevel attribute to logging.DEBUG.
Can apply to either a TestCase or an individual test method."""
target.loglevel = logging.DEBUG
return target
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