/usr/lib/python2.7/dist-packages/zope/testing/loghandler.py is in python-zope.testing 4.1.2-0ubuntu7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""logging handler for tests that check logging output.
"""
import logging
class Handler(logging.Handler):
"""Handler for use with unittest.TestCase objects.
The handler takes a TestCase instance as a constructor argument.
It can be registered with one or more loggers and collects log
records they generate.
The assertLogsMessage() and failIfLogsMessage() methods can be
used to check the logger output and causes the test to fail as
appropriate.
"""
def __init__(self, testcase, propagate=False):
logging.Handler.__init__(self)
self.records = []
# loggers stores (logger, propagate) tuples
self.loggers = []
self.closed = False
self.propagate = propagate
self.testcase = testcase
def close(self):
"""Remove handler from any loggers it was added to."""
if self.closed:
return
for logger, propagate in self.loggers:
logger.removeHandler(self)
logger.propagate = propagate
self.closed = True
def add(self, name):
"""Add handler to logger named name."""
logger = logging.getLogger(name)
old_prop = logger.propagate
logger.addHandler(self)
if self.propagate:
logger.propagate = 1
else:
logger.propagate = 0
self.loggers.append((logger, old_prop))
def emit(self, record):
self.records.append(record)
def assertLogsMessage(self, msg, level=None):
for r in self.records:
if r.getMessage() == msg:
if level is not None and r.levelno == level:
return
msg = "No log message contained %r" % msg
if level is not None:
msg += " at level %d" % level
self.testcase.fail(msg)
def failIfLogsMessage(self, msg):
for r in self.records:
if r.getMessage() == msg:
self.testcase.fail("Found log message %r" % msg)
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