# Copyright 2001-2019 by Vinay Sajip. All Rights Reserved. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose and without fee is hereby granted, # provided that the above copyright notice appear in all copies and that # both that copyright notice and this permission notice appear in # supporting documentation, and that the name of Vinay Sajip # not be used in advertising or publicity pertaining to distribution # of the software without specific, written prior permission. # VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING # ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL # VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR # ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER # IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. """Test harness for the logging module. Run all tests. Copyright (C) 2001-2019 Vinay Sajip. All Rights Reserved. """ import logging import logging.handlers import logging.config import codecs import configparser import copy import datetime import pathlib import pickle import io import gc import json import os import queue import random import re import socket import struct import sys import tempfile from test.support.script_helper import assert_python_ok, assert_python_failure from test import support from test.support import os_helper from test.support import socket_helper from test.support import threading_helper from test.support import warnings_helper from test.support.logging_helper import TestHandler import textwrap import threading import time import unittest import warnings import weakref from http.server import HTTPServer, BaseHTTPRequestHandler from urllib.parse import urlparse, parse_qs from socketserver import (ThreadingUDPServer, DatagramRequestHandler, ThreadingTCPServer, StreamRequestHandler) with warnings.catch_warnings(): warnings.simplefilter('ignore', DeprecationWarning) import asyncore import smtpd try: import win32evtlog, win32evtlogutil, pywintypes except ImportError: win32evtlog = win32evtlogutil = pywintypes = None try: import zlib except ImportError: pass class BaseTest(unittest.TestCase): """Base class for logging tests.""" log_format = "%(name)s -> %(levelname)s: %(message)s" expected_log_pat = r"^([\w.]+) -> (\w+): (\d+)$" message_num = 0 def setUp(self): """Setup the default logging stream to an internal StringIO instance, so that we can examine log output as we want.""" self._threading_key = threading_helper.threading_setup() logger_dict = logging.getLogger().manager.loggerDict logging._acquireLock() try: self.saved_handlers = logging._handlers.copy() self.saved_handler_list = logging._handlerList[:] self.saved_loggers = saved_loggers = logger_dict.copy() self.saved_name_to_level = logging._nameToLevel.copy() self.saved_level_to_name = logging._levelToName.copy() self.logger_states = logger_states = {} for name in saved_loggers: logger_states[name] = getattr(saved_loggers[name], 'disabled', None) finally: logging._releaseLock() # Set two unused loggers self.logger1 = logging.getLogger("\xab\xd7\xbb") self.logger2 = logging.getLogger("\u013f\u00d6\u0047") self.root_logger = logging.getLogger("") self.original_logging_level = self.root_logger.getEffectiveLevel() self.stream = io.StringIO() self.root_logger.setLevel(logging.DEBUG) self.root_hdlr = logging.StreamHandler(self.stream) self.root_formatter = logging.Formatter(self.log_format) self.root_hdlr.setFormatter(self.root_formatter) if self.logger1.hasHandlers(): hlist = self.logger1.handlers + self.root_logger.handlers raise AssertionError('Unexpected handlers: %s' % hlist) if self.logger2.hasHandlers(): hlist = self.logger2.handlers + self.root_logger.handlers raise AssertionError('Unexpected handlers: %s' % hlist) self.root_logger.addHandler(self.root_hdlr) self.assertTrue(self.logger1.hasHandlers()) self.assertTrue(self.logger2.hasHandlers()) def tearDown(self): """Remove our logging stream, and restore the original logging level.""" self.stream.close() self.root_logger.removeHandler(self.root_hdlr) while self.root_logger.handlers: h = self.root_logger.handlers[0] self.root_logger.removeHandler(h) h.close() self.root_logger.setLevel(self.original_logging_level) logging._acquireLock() try: logging._levelToName.clear() logging._levelToName.update(self.saved_level_to_name) logging._nameToLevel.clear() logging._nameToLevel.update(self.saved_name_to_level) logging._handlers.clear() logging._handlers.update(self.saved_handlers) logging._handlerList[:] = self.saved_handler_list manager = logging.getLogger().manager manager.disable = 0 loggerDict = manager.loggerDict loggerDict.clear() loggerDict.update(self.saved_loggers) logger_states = self.logger_states for name in self.logger_states: if logger_states[name] is not None: self.saved_loggers[name].disabled = logger_states[name] finally: logging._releaseLock() self.doCleanups() threading_helper.threading_cleanup(*self._threading_key) def assert_log_lines(self, expected_values, stream=None, pat=None): """Match the collected log lines against the regular expression self.expected_log_pat, and compare the extracted group values to the expected_values list of tuples.""" stream = stream or self.stream pat = re.compile(pat or self.expected_log_pat) actual_lines = stream.getvalue().splitlines() self.assertEqual(len(actual_lines), len(expected_values)) for actual, expected in zip(actual_lines, expected_values): match = pat.search(actual) if not match: self.fail("Log line does not match expected pattern:\n" + actual) self.assertEqual(tuple(match.groups()), expected) s = stream.read() if s: self.fail("Remaining output at end of log stream:\n" + s) def next_message(self): """Generate a message consisting solely of an auto-incrementing integer.""" self.message_num += 1 return "%d" % self.message_num class BuiltinLevelsTest(BaseTest): """Test builtin levels and their inheritance.""" def test_flat(self): # Logging levels in a flat logger namespace. m = self.next_message ERR = logging.getLogger("ERR") ERR.setLevel(logging.ERROR) INF = logging.LoggerAdapter(logging.getLogger("INF"), {}) INF.setLevel(logging.INFO) DEB = logging.getLogger("DEB") DEB.setLevel(logging.DEBUG) # These should log. ERR.log(logging.CRITICAL, m()) ERR.error(m()) INF.log(logging.CRITICAL, m()) INF.error(m()) INF.warning(m()) INF.info(m()) DEB.log(logging.CRITICAL, m()) DEB.error(m()) DEB.warning(m()) DEB.info(m()) DEB.debug(m()) # These should not log. ERR.warning(m()) ERR.info(m()) ERR.debug(m()) INF.debug(m()) self.assert_log_lines([ ('ERR', 'CRITICAL', '1'), ('ERR', 'ERROR', '2'), ('INF', 'CRITICAL', '3'), ('INF', 'ERROR', '4'), ('INF', 'WARNING', '5'), ('INF', 'INFO', '6'), ('DEB', 'CRITICAL', '7'), ('DEB', 'ERROR', '8'), ('DEB', 'WARNING', '9'), ('DEB', 'INFO', '10'), ('DEB', 'DEBUG', '11'), ]) def test_nested_explicit(self): # Logging levels in a nested namespace, all explicitly set. m = self.next_message INF = logging.getLogger("INF") INF.setLevel(logging.INFO) INF_ERR = logging.getLogger("INF.ERR") INF_ERR.setLevel(logging.ERROR) # These should log. INF_ERR.log(logging.CRITICAL, m()) INF_ERR.error(m()) # These should not log. INF_ERR.warning(m()) INF_ERR.info(m()) INF_ERR.debug(m()) self.assert_log_lines([ ('INF.ERR', 'CRITICAL', '1'), ('INF.ERR', 'ERROR', '2'), ]) def test_nested_inherited(self): # Logging levels in a nested namespace, inherited from parent loggers. m = self.next_message INF = logging.getLogger("INF") INF.setLevel(logging.INFO) INF_ERR = logging.getLogger("INF.ERR") INF_ERR.setLevel(logging.ERROR) INF_UNDEF = logging.getLogger("INF.UNDEF") INF_ERR_UNDEF = logging.getLogger("INF.ERR.UNDEF") UNDEF = logging.getLogger("UNDEF") # These should log. INF_UNDEF.log(logging.CRITICAL, m()) INF_UNDEF.error(m()) INF_UNDEF.warning(m()) INF_UNDEF.info(m()) INF_ERR_UNDEF.log(logging.CRITICAL, m()) INF_ERR_UNDEF.error(m()) # These should not log. INF_UNDEF.debug(m()) INF_ERR_UNDEF.warning(m()) INF_ERR_UNDEF.info(m()) INF_ERR_UNDEF.debug(m()) self.assert_log_lines([ ('INF.UNDEF', 'CRITICAL', '1'), ('INF.UNDEF', 'ERROR', '2'), ('INF.UNDEF', 'WARNING', '3'), ('INF.UNDEF', 'INFO', '4'), ('INF.ERR.UNDEF', 'CRITICAL', '5'), ('INF.ERR.UNDEF', 'ERROR', '6'), ]) def test_nested_with_virtual_parent(self): # Logging levels when some parent does not exist yet. m = self.next_message INF = logging.getLogger("INF") GRANDCHILD = logging.getLogger("INF.BADPARENT.UNDEF") CHILD = logging.getLogger("INF.BADPARENT") INF.setLevel(logging.INFO) # These should log. GRANDCHILD.log(logging.FATAL, m()) GRANDCHILD.info(m()) CHILD.log(logging.FATAL, m()) CHILD.info(m()) # These should not log. GRANDCHILD.debug(m()) CHILD.debug(m()) self.assert_log_lines([ ('INF.BADPARENT.UNDEF', 'CRITICAL', '1'), ('INF.BADPARENT.UNDEF', 'INFO', '2'), ('INF.BADPARENT', 'CRITICAL', '3'), ('INF.BADPARENT', 'INFO', '4'), ]) def test_regression_22386(self): """See issue #22386 for more information.""" self.assertEqual(logging.getLevelName('INFO'), logging.INFO) self.assertEqual(logging.getLevelName(logging.INFO), 'INFO') def test_issue27935(self): fatal = logging.getLevelName('FATAL') self.assertEqual(fatal, logging.FATAL) def test_regression_29220(self): """See issue #29220 for more information.""" logging.addLevelName(logging.INFO, '') self.addCleanup(logging.addLevelName, logging.INFO, 'INFO') self.assertEqual(logging.getLevelName(logging.INFO), '') self.assertEqual(logging.getLevelName(logging.NOTSET), 'NOTSET') self.assertEqual(logging.getLevelName('NOTSET'), logging.NOTSET) class BasicFilterTest(BaseTest): """Test the bundled Filter class.""" def test_filter(self): # Only messages satisfying the specified criteria pass through the # filter. filter_ = logging.Filter("spam.eggs") handler = self.root_logger.handlers[0] try: handler.addFilter(filter_) spam = logging.getLogger("spam") spam_eggs = logging.getLogger("spam.eggs") spam_eggs_fish = logging.getLogger("spam.eggs.fish") spam_bakedbeans = logging.getLogger("spam.bakedbeans") spam.info(self.next_message()) spam_eggs.info(self.next_message()) # Good. spam_eggs_fish.info(self.next_message()) # Good. spam_bakedbeans.info(self.next_message()) self.assert_log_lines([ ('spam.eggs', 'INFO', '2'), ('spam.eggs.fish', 'INFO', '3'), ]) finally: handler.removeFilter(filter_) def test_callable_filter(self): # Only messages satisfying the specified criteria pass through the # filter. def filterfunc(record): parts = record.name.split('.') prefix = '.'.join(parts[:2]) return prefix == 'spam.eggs' handler = self.root_logger.handlers[0] try: handler.addFilter(filterfunc) spam = logging.getLogger("spam") spam_eggs = logging.getLogger("spam.eggs") spam_eggs_fish = logging.getLogger("spam.eggs.fish") spam_bakedbeans = logging.getLogger("spam.bakedbeans") spam.info(self.next_message()) spam_eggs.info(self.next_message()) # Good. spam_eggs_fish.info(self.next_message()) # Good. spam_bakedbeans.info(self.next_message()) self.assert_log_lines([ ('spam.eggs', 'INFO', '2'), ('spam.eggs.fish', 'INFO', '3'), ]) finally: handler.removeFilter(filterfunc) def test_empty_filter(self): f = logging.Filter() r = logging.makeLogRecord({'name': 'spam.eggs'}) self.assertTrue(f.filter(r)) # # First, we define our levels. There can be as many as you want - the only # limitations are that they should be integers, the lowest should be > 0 and # larger values mean less information being logged. If you need specific # level values which do not fit into these limitations, you can use a # mapping dictionary to convert between your application levels and the # logging system. # SILENT = 120 TACITURN = 119 TERSE = 118 EFFUSIVE = 117 SOCIABLE = 116 VERBOSE = 115 TALKATIVE = 114 GARRULOUS = 113 CHATTERBOX = 112 BORING = 111 LEVEL_RANGE = range(BORING, SILENT + 1) # # Next, we define names for our levels. You don't need to do this - in which # case the system will use "Level n" to denote the text for the level. # my_logging_levels = { SILENT : 'Silent', TACITURN : 'Taciturn', TERSE : 'Terse', EFFUSIVE : 'Effusive', SOCIABLE : 'Sociable', VERBOSE : 'Verbose', TALKATIVE : 'Talkative', GARRULOUS : 'Garrulous', CHATTERBOX : 'Chatterbox', BORING : 'Boring', } class GarrulousFilter(logging.Filter): """A filter which blocks garrulous messages.""" def filter(self, record): return record.levelno != GARRULOUS class VerySpecificFilter(logging.Filter): """A filter which blocks sociable and taciturn messages.""" def filter(self, record): return record.levelno not in [SOCIABLE, TACITURN] class CustomLevelsAndFiltersTest(BaseTest): """Test various filtering possibilities with custom logging levels.""" # Skip the logger name group. expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" def setUp(self): BaseTest.setUp(self) for k, v in my_logging_levels.items(): logging.addLevelName(k, v) def log_at_all_levels(self, logger): for lvl in LEVEL_RANGE: logger.log(lvl, self.next_message()) def test_logger_filter(self): # Filter at logger level. self.root_logger.setLevel(VERBOSE) # Levels >= 'Verbose' are good. self.log_at_all_levels(self.root_logger) self.assert_log_lines([ ('Verbose', '5'), ('Sociable', '6'), ('Effusive', '7'), ('Terse', '8'), ('Taciturn', '9'), ('Silent', '10'), ]) def test_handler_filter(self): # Filter at handler level. self.root_logger.handlers[0].setLevel(SOCIABLE) try: # Levels >= 'Sociable' are good. self.log_at_all_levels(self.root_logger) self.assert_log_lines([ ('Sociable', '6'), ('Effusive', '7'), ('Terse', '8'), ('Taciturn', '9'), ('Silent', '10'), ]) finally: self.root_logger.handlers[0].setLevel(logging.NOTSET) def test_specific_filters(self): # Set a specific filter object on the handler, and then add another # filter object on the logger itself. handler = self.root_logger.handlers[0] specific_filter = None garr = GarrulousFilter() handler.addFilter(garr) try: self.log_at_all_levels(self.root_logger) first_lines = [ # Notice how 'Garrulous' is missing ('Boring', '1'), ('Chatterbox', '2'), ('Talkative', '4'), ('Verbose', '5'), ('Sociable', '6'), ('Effusive', '7'), ('Terse', '8'), ('Taciturn', '9'), ('Silent', '10'), ] self.assert_log_lines(first_lines) specific_filter = VerySpecificFilter() self.root_logger.addFilter(specific_filter) self.log_at_all_levels(self.root_logger) self.assert_log_lines(first_lines + [ # Not only 'Garrulous' is still missing, but also 'Sociable' # and 'Taciturn' ('Boring', '11'), ('Chatterbox', '12'), ('Talkative', '14'), ('Verbose', '15'), ('Effusive', '17'), ('Terse', '18'), ('Silent', '20'), ]) finally: if specific_filter: self.root_logger.removeFilter(specific_filter) handler.removeFilter(garr) class HandlerTest(BaseTest): def test_name(self): h = logging.Handler() h.name = 'generic' self.assertEqual(h.name, 'generic') h.name = 'anothergeneric' self.assertEqual(h.name, 'anothergeneric') self.assertRaises(NotImplementedError, h.emit, None) def test_builtin_handlers(self): # We can't actually *use* too many handlers in the tests, # but we can try instantiating them with various options if sys.platform in ('linux', 'darwin'): for existing in (True, False): fd, fn = tempfile.mkstemp() os.close(fd) if not existing: os.unlink(fn) h = logging.handlers.WatchedFileHandler(fn, encoding='utf-8', delay=True) if existing: dev, ino = h.dev, h.ino self.assertEqual(dev, -1) self.assertEqual(ino, -1) r = logging.makeLogRecord({'msg': 'Test'}) h.handle(r) # Now remove the file. os.unlink(fn) self.assertFalse(os.path.exists(fn)) # The next call should recreate the file. h.handle(r) self.assertTrue(os.path.exists(fn)) else: self.assertEqual(h.dev, -1) self.assertEqual(h.ino, -1) h.close() if existing: os.unlink(fn) if sys.platform == 'darwin': sockname = '/var/run/syslog' else: sockname = '/dev/log' try: h = logging.handlers.SysLogHandler(sockname) self.assertEqual(h.facility, h.LOG_USER) self.assertTrue(h.unixsocket) h.close() except OSError: # syslogd might not be available pass for method in ('GET', 'POST', 'PUT'): if method == 'PUT': self.assertRaises(ValueError, logging.handlers.HTTPHandler, 'localhost', '/log', method) else: h = logging.handlers.HTTPHandler('localhost', '/log', method) h.close() h = logging.handlers.BufferingHandler(0) r = logging.makeLogRecord({}) self.assertTrue(h.shouldFlush(r)) h.close() h = logging.handlers.BufferingHandler(1) self.assertFalse(h.shouldFlush(r)) h.close() def test_path_objects(self): """ Test that Path objects are accepted as filename arguments to handlers. See Issue #27493. """ fd, fn = tempfile.mkstemp() os.close(fd) os.unlink(fn) pfn = pathlib.Path(fn) cases = ( (logging.FileHandler, (pfn, 'w')), (logging.handlers.RotatingFileHandler, (pfn, 'a')), (logging.handlers.TimedRotatingFileHandler, (pfn, 'h')), ) if sys.platform in ('linux', 'darwin'): cases += ((logging.handlers.WatchedFileHandler, (pfn, 'w')),) for cls, args in cases: h = cls(*args, encoding="utf-8") self.assertTrue(os.path.exists(fn)) h.close() os.unlink(fn) @unittest.skipIf(os.name == 'nt', 'WatchedFileHandler not appropriate for Windows.') def test_race(self): # Issue #14632 refers. def remove_loop(fname, tries): for _ in range(tries): try: os.unlink(fname) self.deletion_time = time.time() except OSError: pass time.sleep(0.004 * random.randint(0, 4)) del_count = 500 log_count = 500 self.handle_time = None self.deletion_time = None for delay in (False, True): fd, fn = tempfile.mkstemp('.log', 'test_logging-3-') os.close(fd) remover = threading.Thread(target=remove_loop, args=(fn, del_count)) remover.daemon = True remover.start() h = logging.handlers.WatchedFileHandler(fn, encoding='utf-8', delay=delay) f = logging.Formatter('%(asctime)s: %(levelname)s: %(message)s') h.setFormatter(f) try: for _ in range(log_count): time.sleep(0.005) r = logging.makeLogRecord({'msg': 'testing' }) try: self.handle_time = time.time() h.handle(r) except Exception: print('Deleted at %s, ' 'opened at %s' % (self.deletion_time, self.handle_time)) raise finally: remover.join() h.close() if os.path.exists(fn): os.unlink(fn) # The implementation relies on os.register_at_fork existing, but we test # based on os.fork existing because that is what users and this test use. # This helps ensure that when fork exists (the important concept) that the # register_at_fork mechanism is also present and used. @unittest.skipIf(not hasattr(os, 'fork'), 'Test requires os.fork().') def test_post_fork_child_no_deadlock(self): """Ensure child logging locks are not held; bpo-6721 & bpo-36533.""" class _OurHandler(logging.Handler): def __init__(self): super().__init__() self.sub_handler = logging.StreamHandler( stream=open('/dev/null', 'wt', encoding='utf-8')) def emit(self, record): self.sub_handler.acquire() try: self.sub_handler.emit(record) finally: self.sub_handler.release() self.assertEqual(len(logging._handlers), 0) refed_h = _OurHandler() self.addCleanup(refed_h.sub_handler.stream.close) refed_h.name = 'because we need at least one for this test' self.assertGreater(len(logging._handlers), 0) self.assertGreater(len(logging._at_fork_reinit_lock_weakset), 1) test_logger = logging.getLogger('test_post_fork_child_no_deadlock') test_logger.addHandler(refed_h) test_logger.setLevel(logging.DEBUG) locks_held__ready_to_fork = threading.Event() fork_happened__release_locks_and_end_thread = threading.Event() def lock_holder_thread_fn(): logging._acquireLock() try: refed_h.acquire() try: # Tell the main thread to do the fork. locks_held__ready_to_fork.set() # If the deadlock bug exists, the fork will happen # without dealing with the locks we hold, deadlocking # the child. # Wait for a successful fork or an unreasonable amount of # time before releasing our locks. To avoid a timing based # test we'd need communication from os.fork() as to when it # has actually happened. Given this is a regression test # for a fixed issue, potentially less reliably detecting # regression via timing is acceptable for simplicity. # The test will always take at least this long. :( fork_happened__release_locks_and_end_thread.wait(0.5) finally: refed_h.release() finally: logging._releaseLock() lock_holder_thread = threading.Thread( target=lock_holder_thread_fn, name='test_post_fork_child_no_deadlock lock holder') lock_holder_thread.start() locks_held__ready_to_fork.wait() pid = os.fork() if pid == 0: # Child process try: test_logger.info(r'Child process did not deadlock. \o/') finally: os._exit(0) else: # Parent process test_logger.info(r'Parent process returned from fork. \o/') fork_happened__release_locks_and_end_thread.set() lock_holder_thread.join() support.wait_process(pid, exitcode=0) class BadStream(object): def write(self, data): raise RuntimeError('deliberate mistake') class TestStreamHandler(logging.StreamHandler): def handleError(self, record): self.error_record = record class StreamWithIntName(object): level = logging.NOTSET name = 2 class StreamHandlerTest(BaseTest): def test_error_handling(self): h = TestStreamHandler(BadStream()) r = logging.makeLogRecord({}) old_raise = logging.raiseExceptions try: h.handle(r) self.assertIs(h.error_record, r) h = logging.StreamHandler(BadStream()) with support.captured_stderr() as stderr: h.handle(r) msg = '\nRuntimeError: deliberate mistake\n' self.assertIn(msg, stderr.getvalue()) logging.raiseExceptions = False with support.captured_stderr() as stderr: h.handle(r) self.assertEqual('', stderr.getvalue()) finally: logging.raiseExceptions = old_raise def test_stream_setting(self): """ Test setting the handler's stream """ h = logging.StreamHandler() stream = io.StringIO() old = h.setStream(stream) self.assertIs(old, sys.stderr) actual = h.setStream(old) self.assertIs(actual, stream) # test that setting to existing value returns None actual = h.setStream(old) self.assertIsNone(actual) def test_can_represent_stream_with_int_name(self): h = logging.StreamHandler(StreamWithIntName()) self.assertEqual(repr(h), '') # -- The following section could be moved into a server_helper.py module # -- if it proves to be of wider utility than just test_logging class TestSMTPServer(smtpd.SMTPServer): """ This class implements a test SMTP server. :param addr: A (host, port) tuple which the server listens on. You can specify a port value of zero: the server's *port* attribute will hold the actual port number used, which can be used in client connections. :param handler: A callable which will be called to process incoming messages. The handler will be passed the client address tuple, who the message is from, a list of recipients and the message data. :param poll_interval: The interval, in seconds, used in the underlying :func:`select` or :func:`poll` call by :func:`asyncore.loop`. :param sockmap: A dictionary which will be used to hold :class:`asyncore.dispatcher` instances used by :func:`asyncore.loop`. This avoids changing the :mod:`asyncore` module's global state. """ def __init__(self, addr, handler, poll_interval, sockmap): smtpd.SMTPServer.__init__(self, addr, None, map=sockmap, decode_data=True) self.port = self.socket.getsockname()[1] self._handler = handler self._thread = None self._quit = False self.poll_interval = poll_interval def process_message(self, peer, mailfrom, rcpttos, data): """ Delegates to the handler passed in to the server's constructor. Typically, this will be a test case method. :param peer: The client (host, port) tuple. :param mailfrom: The address of the sender. :param rcpttos: The addresses of the recipients. :param data: The message. """ self._handler(peer, mailfrom, rcpttos, data) def start(self): """ Start the server running on a separate daemon thread. """ self._thread = t = threading.Thread(target=self.serve_forever, args=(self.poll_interval,)) t.daemon = True t.start() def serve_forever(self, poll_interval): """ Run the :mod:`asyncore` loop until normal termination conditions arise. :param poll_interval: The interval, in seconds, used in the underlying :func:`select` or :func:`poll` call by :func:`asyncore.loop`. """ while not self._quit: asyncore.loop(poll_interval, map=self._map, count=1) def stop(self): """ Stop the thread by closing the server instance. Wait for the server thread to terminate. """ self._quit = True threading_helper.join_thread(self._thread) self._thread = None self.close() asyncore.close_all(map=self._map, ignore_all=True) class ControlMixin(object): """ This mixin is used to start a server on a separate thread, and shut it down programmatically. Request handling is simplified - instead of needing to derive a suitable RequestHandler subclass, you just provide a callable which will be passed each received request to be processed. :param handler: A handler callable which will be called with a single parameter - the request - in order to process the request. This handler is called on the server thread, effectively meaning that requests are processed serially. While not quite Web scale ;-), this should be fine for testing applications. :param poll_interval: The polling interval in seconds. """ def __init__(self, handler, poll_interval): self._thread = None self.poll_interval = poll_interval self._handler = handler self.ready = threading.Event() def start(self): """ Create a daemon thread to run the server, and start it. """ self._thread = t = threading.Thread(target=self.serve_forever, args=(self.poll_interval,)) t.daemon = True t.start() def serve_forever(self, poll_interval): """ Run the server. Set the ready flag before entering the service loop. """ self.ready.set() super(ControlMixin, self).serve_forever(poll_interval) def stop(self): """ Tell the server thread to stop, and wait for it to do so. """ self.shutdown() if self._thread is not None: threading_helper.join_thread(self._thread) self._thread = None self.server_close() self.ready.clear() class TestHTTPServer(ControlMixin, HTTPServer): """ An HTTP server which is controllable using :class:`ControlMixin`. :param addr: A tuple with the IP address and port to listen on. :param handler: A handler callable which will be called with a single parameter - the request - in order to process the request. :param poll_interval: The polling interval in seconds. :param log: Pass ``True`` to enable log messages. """ def __init__(self, addr, handler, poll_interval=0.5, log=False, sslctx=None): class DelegatingHTTPRequestHandler(BaseHTTPRequestHandler): def __getattr__(self, name, default=None): if name.startswith('do_'): return self.process_request raise AttributeError(name) def process_request(self): self.server._handler(self) def log_message(self, format, *args): if log: super(DelegatingHTTPRequestHandler, self).log_message(format, *args) HTTPServer.__init__(self, addr, DelegatingHTTPRequestHandler) ControlMixin.__init__(self, handler, poll_interval) self.sslctx = sslctx def get_request(self): try: sock, addr = self.socket.accept() if self.sslctx: sock = self.sslctx.wrap_socket(sock, server_side=True) except OSError as e: # socket errors are silenced by the caller, print them here sys.stderr.write("Got an error:\n%s\n" % e) raise return sock, addr class TestTCPServer(ControlMixin, ThreadingTCPServer): """ A TCP server which is controllable using :class:`ControlMixin`. :param addr: A tuple with the IP address and port to listen on. :param handler: A handler callable which will be called with a single parameter - the request - in order to process the request. :param poll_interval: The polling interval in seconds. :bind_and_activate: If True (the default), binds the server and starts it listening. If False, you need to call :meth:`server_bind` and :meth:`server_activate` at some later time before calling :meth:`start`, so that the server will set up the socket and listen on it. """ allow_reuse_address = True def __init__(self, addr, handler, poll_interval=0.5, bind_and_activate=True): class DelegatingTCPRequestHandler(StreamRequestHandler): def handle(self): self.server._handler(self) ThreadingTCPServer.__init__(self, addr, DelegatingTCPRequestHandler, bind_and_activate) ControlMixin.__init__(self, handler, poll_interval) def server_bind(self): super(TestTCPServer, self).server_bind() self.port = self.socket.getsockname()[1] class TestUDPServer(ControlMixin, ThreadingUDPServer): """ A UDP server which is controllable using :class:`ControlMixin`. :param addr: A tuple with the IP address and port to listen on. :param handler: A handler callable which will be called with a single parameter - the request - in order to process the request. :param poll_interval: The polling interval for shutdown requests, in seconds. :bind_and_activate: If True (the default), binds the server and starts it listening. If False, you need to call :meth:`server_bind` and :meth:`server_activate` at some later time before calling :meth:`start`, so that the server will set up the socket and listen on it. """ def __init__(self, addr, handler, poll_interval=0.5, bind_and_activate=True): class DelegatingUDPRequestHandler(DatagramRequestHandler): def handle(self): self.server._handler(self) def finish(self): data = self.wfile.getvalue() if data: try: super(DelegatingUDPRequestHandler, self).finish() except OSError: if not self.server._closed: raise ThreadingUDPServer.__init__(self, addr, DelegatingUDPRequestHandler, bind_and_activate) ControlMixin.__init__(self, handler, poll_interval) self._closed = False def server_bind(self): super(TestUDPServer, self).server_bind() self.port = self.socket.getsockname()[1] def server_close(self): super(TestUDPServer, self).server_close() self._closed = True if hasattr(socket, "AF_UNIX"): class TestUnixStreamServer(TestTCPServer): address_family = socket.AF_UNIX class TestUnixDatagramServer(TestUDPServer): address_family = socket.AF_UNIX # - end of server_helper section class SMTPHandlerTest(BaseTest): # bpo-14314, bpo-19665, bpo-34092: don't wait forever TIMEOUT = support.LONG_TIMEOUT def test_basic(self): sockmap = {} server = TestSMTPServer((socket_helper.HOST, 0), self.process_message, 0.001, sockmap) server.start() addr = (socket_helper.HOST, server.port) h = logging.handlers.SMTPHandler(addr, 'me', 'you', 'Log', timeout=self.TIMEOUT) self.assertEqual(h.toaddrs, ['you']) self.messages = [] r = logging.makeLogRecord({'msg': 'Hello \u2713'}) self.handled = threading.Event() h.handle(r) self.handled.wait(self.TIMEOUT) server.stop() self.assertTrue(self.handled.is_set()) self.assertEqual(len(self.messages), 1) peer, mailfrom, rcpttos, data = self.messages[0] self.assertEqual(mailfrom, 'me') self.assertEqual(rcpttos, ['you']) self.assertIn('\nSubject: Log\n', data) self.assertTrue(data.endswith('\n\nHello \u2713')) h.close() def process_message(self, *args): self.messages.append(args) self.handled.set() class MemoryHandlerTest(BaseTest): """Tests for the MemoryHandler.""" # Do not bother with a logger name group. expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" def setUp(self): BaseTest.setUp(self) self.mem_hdlr = logging.handlers.MemoryHandler(10, logging.WARNING, self.root_hdlr) self.mem_logger = logging.getLogger('mem') self.mem_logger.propagate = 0 self.mem_logger.addHandler(self.mem_hdlr) def tearDown(self): self.mem_hdlr.close() BaseTest.tearDown(self) def test_flush(self): # The memory handler flushes to its target handler based on specific # criteria (message count and message level). self.mem_logger.debug(self.next_message()) self.assert_log_lines([]) self.mem_logger.info(self.next_message()) self.assert_log_lines([]) # This will flush because the level is >= logging.WARNING self.mem_logger.warning(self.next_message()) lines = [ ('DEBUG', '1'), ('INFO', '2'), ('WARNING', '3'), ] self.assert_log_lines(lines) for n in (4, 14): for i in range(9): self.mem_logger.debug(self.next_message()) self.assert_log_lines(lines) # This will flush because it's the 10th message since the last # flush. self.mem_logger.debug(self.next_message()) lines = lines + [('DEBUG', str(i)) for i in range(n, n + 10)] self.assert_log_lines(lines) self.mem_logger.debug(self.next_message()) self.assert_log_lines(lines) def test_flush_on_close(self): """ Test that the flush-on-close configuration works as expected. """ self.mem_logger.debug(self.next_message()) self.assert_log_lines([]) self.mem_logger.info(self.next_message()) self.assert_log_lines([]) self.mem_logger.removeHandler(self.mem_hdlr) # Default behaviour is to flush on close. Check that it happens. self.mem_hdlr.close() lines = [ ('DEBUG', '1'), ('INFO', '2'), ] self.assert_log_lines(lines) # Now configure for flushing not to be done on close. self.mem_hdlr = logging.handlers.MemoryHandler(10, logging.WARNING, self.root_hdlr, False) self.mem_logger.addHandler(self.mem_hdlr) self.mem_logger.debug(self.next_message()) self.assert_log_lines(lines) # no change self.mem_logger.info(self.next_message()) self.assert_log_lines(lines) # no change self.mem_logger.removeHandler(self.mem_hdlr) self.mem_hdlr.close() # assert that no new lines have been added self.assert_log_lines(lines) # no change def test_race_between_set_target_and_flush(self): class MockRaceConditionHandler: def __init__(self, mem_hdlr): self.mem_hdlr = mem_hdlr self.threads = [] def removeTarget(self): self.mem_hdlr.setTarget(None) def handle(self, msg): thread = threading.Thread(target=self.removeTarget) self.threads.append(thread) thread.start() target = MockRaceConditionHandler(self.mem_hdlr) try: self.mem_hdlr.setTarget(target) for _ in range(10): time.sleep(0.005) self.mem_logger.info("not flushed") self.mem_logger.warning("flushed") finally: for thread in target.threads: threading_helper.join_thread(thread) class ExceptionFormatter(logging.Formatter): """A special exception formatter.""" def formatException(self, ei): return "Got a [%s]" % ei[0].__name__ class ConfigFileTest(BaseTest): """Reading logging config from a .ini-style config file.""" check_no_resource_warning = warnings_helper.check_no_resource_warning expected_log_pat = r"^(\w+) \+\+ (\w+)$" # config0 is a standard configuration. config0 = """ [loggers] keys=root [handlers] keys=hand1 [formatters] keys=form1 [logger_root] level=WARNING handlers=hand1 [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stdout,) [formatter_form1] format=%(levelname)s ++ %(message)s datefmt= """ # config1 adds a little to the standard configuration. config1 = """ [loggers] keys=root,parser [handlers] keys=hand1 [formatters] keys=form1 [logger_root] level=WARNING handlers= [logger_parser] level=DEBUG handlers=hand1 propagate=1 qualname=compiler.parser [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stdout,) [formatter_form1] format=%(levelname)s ++ %(message)s datefmt= """ # config1a moves the handler to the root. config1a = """ [loggers] keys=root,parser [handlers] keys=hand1 [formatters] keys=form1 [logger_root] level=WARNING handlers=hand1 [logger_parser] level=DEBUG handlers= propagate=1 qualname=compiler.parser [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stdout,) [formatter_form1] format=%(levelname)s ++ %(message)s datefmt= """ # config2 has a subtle configuration error that should be reported config2 = config1.replace("sys.stdout", "sys.stbout") # config3 has a less subtle configuration error config3 = config1.replace("formatter=form1", "formatter=misspelled_name") # config4 specifies a custom formatter class to be loaded config4 = """ [loggers] keys=root [handlers] keys=hand1 [formatters] keys=form1 [logger_root] level=NOTSET handlers=hand1 [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stdout,) [formatter_form1] class=""" + __name__ + """.ExceptionFormatter format=%(levelname)s:%(name)s:%(message)s datefmt= """ # config5 specifies a custom handler class to be loaded config5 = config1.replace('class=StreamHandler', 'class=logging.StreamHandler') # config6 uses ', ' delimiters in the handlers and formatters sections config6 = """ [loggers] keys=root,parser [handlers] keys=hand1, hand2 [formatters] keys=form1, form2 [logger_root] level=WARNING handlers= [logger_parser] level=DEBUG handlers=hand1 propagate=1 qualname=compiler.parser [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stdout,) [handler_hand2] class=StreamHandler level=NOTSET formatter=form1 args=(sys.stderr,) [formatter_form1] format=%(levelname)s ++ %(message)s datefmt= [formatter_form2] format=%(message)s datefmt= """ # config7 adds a compiler logger, and uses kwargs instead of args. config7 = """ [loggers] keys=root,parser,compiler [handlers] keys=hand1 [formatters] keys=form1 [logger_root] level=WARNING handlers=hand1 [logger_compiler] level=DEBUG handlers= propagate=1 qualname=compiler [logger_parser] level=DEBUG handlers= propagate=1 qualname=compiler.parser [handler_hand1] class=StreamHandler level=NOTSET formatter=form1 kwargs={'stream': sys.stdout,} [formatter_form1] format=%(levelname)s ++ %(message)s datefmt= """ # config 8, check for resource warning config8 = r""" [loggers] keys=root [handlers] keys=file [formatters] keys= [logger_root] level=DEBUG handlers=file [handler_file] class=FileHandler level=DEBUG args=("{tempfile}",) kwargs={{"encoding": "utf-8"}} """ disable_test = """ [loggers] keys=root [handlers] keys=screen [formatters] keys= [logger_root] level=DEBUG handlers=screen [handler_screen] level=DEBUG class=StreamHandler args=(sys.stdout,) formatter= """ def apply_config(self, conf, **kwargs): file = io.StringIO(textwrap.dedent(conf)) logging.config.fileConfig(file, encoding="utf-8", **kwargs) def test_config0_ok(self): # A simple config file which overrides the default settings. with support.captured_stdout() as output: self.apply_config(self.config0) logger = logging.getLogger() # Won't output anything logger.info(self.next_message()) # Outputs a message logger.error(self.next_message()) self.assert_log_lines([ ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config0_using_cp_ok(self): # A simple config file which overrides the default settings. with support.captured_stdout() as output: file = io.StringIO(textwrap.dedent(self.config0)) cp = configparser.ConfigParser() cp.read_file(file) logging.config.fileConfig(cp) logger = logging.getLogger() # Won't output anything logger.info(self.next_message()) # Outputs a message logger.error(self.next_message()) self.assert_log_lines([ ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config1_ok(self, config=config1): # A config file defining a sub-parser as well. with support.captured_stdout() as output: self.apply_config(config) logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config2_failure(self): # A simple config file which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config2) def test_config3_failure(self): # A simple config file which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config3) def test_config4_ok(self): # A config file specifying a custom formatter class. with support.captured_stdout() as output: self.apply_config(self.config4) logger = logging.getLogger() try: raise RuntimeError() except RuntimeError: logging.exception("just testing") sys.stdout.seek(0) self.assertEqual(output.getvalue(), "ERROR:root:just testing\nGot a [RuntimeError]\n") # Original logger output is empty self.assert_log_lines([]) def test_config5_ok(self): self.test_config1_ok(config=self.config5) def test_config6_ok(self): self.test_config1_ok(config=self.config6) def test_config7_ok(self): with support.captured_stdout() as output: self.apply_config(self.config1a) logger = logging.getLogger("compiler.parser") # See issue #11424. compiler-hyphenated sorts # between compiler and compiler.xyz and this # was preventing compiler.xyz from being included # in the child loggers of compiler because of an # overzealous loop termination condition. hyphenated = logging.getLogger('compiler-hyphenated') # All will output a message logger.info(self.next_message()) logger.error(self.next_message()) hyphenated.critical(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ('CRITICAL', '3'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) with support.captured_stdout() as output: self.apply_config(self.config7) logger = logging.getLogger("compiler.parser") self.assertFalse(logger.disabled) # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) logger = logging.getLogger("compiler.lexer") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) # Will not appear hyphenated.critical(self.next_message()) self.assert_log_lines([ ('INFO', '4'), ('ERROR', '5'), ('INFO', '6'), ('ERROR', '7'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config8_ok(self): def cleanup(h1, fn): h1.close() os.remove(fn) with self.check_no_resource_warning(): fd, fn = tempfile.mkstemp(".log", "test_logging-X-") os.close(fd) # Replace single backslash with double backslash in windows # to avoid unicode error during string formatting if os.name == "nt": fn = fn.replace("\\", "\\\\") config8 = self.config8.format(tempfile=fn) self.apply_config(config8) self.apply_config(config8) handler = logging.root.handlers[0] self.addCleanup(cleanup, handler, fn) def test_logger_disabling(self): self.apply_config(self.disable_test) logger = logging.getLogger('some_pristine_logger') self.assertFalse(logger.disabled) self.apply_config(self.disable_test) self.assertTrue(logger.disabled) self.apply_config(self.disable_test, disable_existing_loggers=False) self.assertFalse(logger.disabled) def test_config_set_handler_names(self): test_config = """ [loggers] keys=root [handlers] keys=hand1 [formatters] keys=form1 [logger_root] handlers=hand1 [handler_hand1] class=StreamHandler formatter=form1 [formatter_form1] format=%(levelname)s ++ %(message)s """ self.apply_config(test_config) self.assertEqual(logging.getLogger().handlers[0].name, 'hand1') def test_defaults_do_no_interpolation(self): """bpo-33802 defaults should not get interpolated""" ini = textwrap.dedent(""" [formatters] keys=default [formatter_default] [handlers] keys=console [handler_console] class=logging.StreamHandler args=tuple() [loggers] keys=root [logger_root] formatter=default handlers=console """).strip() fd, fn = tempfile.mkstemp(prefix='test_logging_', suffix='.ini') try: os.write(fd, ini.encode('ascii')) os.close(fd) logging.config.fileConfig( fn, encoding="utf-8", defaults=dict( version=1, disable_existing_loggers=False, formatters={ "generic": { "format": "%(asctime)s [%(process)d] [%(levelname)s] %(message)s", "datefmt": "[%Y-%m-%d %H:%M:%S %z]", "class": "logging.Formatter" }, }, ) ) finally: os.unlink(fn) class SocketHandlerTest(BaseTest): """Test for SocketHandler objects.""" server_class = TestTCPServer address = ('localhost', 0) def setUp(self): """Set up a TCP server to receive log messages, and a SocketHandler pointing to that server's address and port.""" BaseTest.setUp(self) # Issue #29177: deal with errors that happen during setup self.server = self.sock_hdlr = self.server_exception = None try: self.server = server = self.server_class(self.address, self.handle_socket, 0.01) server.start() # Uncomment next line to test error recovery in setUp() # raise OSError('dummy error raised') except OSError as e: self.server_exception = e return server.ready.wait() hcls = logging.handlers.SocketHandler if isinstance(server.server_address, tuple): self.sock_hdlr = hcls('localhost', server.port) else: self.sock_hdlr = hcls(server.server_address, None) self.log_output = '' self.root_logger.removeHandler(self.root_logger.handlers[0]) self.root_logger.addHandler(self.sock_hdlr) self.handled = threading.Semaphore(0) def tearDown(self): """Shutdown the TCP server.""" try: if self.sock_hdlr: self.root_logger.removeHandler(self.sock_hdlr) self.sock_hdlr.close() if self.server: self.server.stop() finally: BaseTest.tearDown(self) def handle_socket(self, request): conn = request.connection while True: chunk = conn.recv(4) if len(chunk) < 4: break slen = struct.unpack(">L", chunk)[0] chunk = conn.recv(slen) while len(chunk) < slen: chunk = chunk + conn.recv(slen - len(chunk)) obj = pickle.loads(chunk) record = logging.makeLogRecord(obj) self.log_output += record.msg + '\n' self.handled.release() def test_output(self): # The log message sent to the SocketHandler is properly received. if self.server_exception: self.skipTest(self.server_exception) logger = logging.getLogger("tcp") logger.error("spam") self.handled.acquire() logger.debug("eggs") self.handled.acquire() self.assertEqual(self.log_output, "spam\neggs\n") def test_noserver(self): if self.server_exception: self.skipTest(self.server_exception) # Avoid timing-related failures due to SocketHandler's own hard-wired # one-second timeout on socket.create_connection() (issue #16264). self.sock_hdlr.retryStart = 2.5 # Kill the server self.server.stop() # The logging call should try to connect, which should fail try: raise RuntimeError('Deliberate mistake') except RuntimeError: self.root_logger.exception('Never sent') self.root_logger.error('Never sent, either') now = time.time() self.assertGreater(self.sock_hdlr.retryTime, now) time.sleep(self.sock_hdlr.retryTime - now + 0.001) self.root_logger.error('Nor this') def _get_temp_domain_socket(): fd, fn = tempfile.mkstemp(prefix='test_logging_', suffix='.sock') os.close(fd) # just need a name - file can't be present, or we'll get an # 'address already in use' error. os.remove(fn) return fn @unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") class UnixSocketHandlerTest(SocketHandlerTest): """Test for SocketHandler with unix sockets.""" if hasattr(socket, "AF_UNIX"): server_class = TestUnixStreamServer def setUp(self): # override the definition in the base class self.address = _get_temp_domain_socket() SocketHandlerTest.setUp(self) def tearDown(self): SocketHandlerTest.tearDown(self) os_helper.unlink(self.address) class DatagramHandlerTest(BaseTest): """Test for DatagramHandler.""" server_class = TestUDPServer address = ('localhost', 0) def setUp(self): """Set up a UDP server to receive log messages, and a DatagramHandler pointing to that server's address and port.""" BaseTest.setUp(self) # Issue #29177: deal with errors that happen during setup self.server = self.sock_hdlr = self.server_exception = None try: self.server = server = self.server_class(self.address, self.handle_datagram, 0.01) server.start() # Uncomment next line to test error recovery in setUp() # raise OSError('dummy error raised') except OSError as e: self.server_exception = e return server.ready.wait() hcls = logging.handlers.DatagramHandler if isinstance(server.server_address, tuple): self.sock_hdlr = hcls('localhost', server.port) else: self.sock_hdlr = hcls(server.server_address, None) self.log_output = '' self.root_logger.removeHandler(self.root_logger.handlers[0]) self.root_logger.addHandler(self.sock_hdlr) self.handled = threading.Event() def tearDown(self): """Shutdown the UDP server.""" try: if self.server: self.server.stop() if self.sock_hdlr: self.root_logger.removeHandler(self.sock_hdlr) self.sock_hdlr.close() finally: BaseTest.tearDown(self) def handle_datagram(self, request): slen = struct.pack('>L', 0) # length of prefix packet = request.packet[len(slen):] obj = pickle.loads(packet) record = logging.makeLogRecord(obj) self.log_output += record.msg + '\n' self.handled.set() def test_output(self): # The log message sent to the DatagramHandler is properly received. if self.server_exception: self.skipTest(self.server_exception) logger = logging.getLogger("udp") logger.error("spam") self.handled.wait() self.handled.clear() logger.error("eggs") self.handled.wait() self.assertEqual(self.log_output, "spam\neggs\n") @unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") class UnixDatagramHandlerTest(DatagramHandlerTest): """Test for DatagramHandler using Unix sockets.""" if hasattr(socket, "AF_UNIX"): server_class = TestUnixDatagramServer def setUp(self): # override the definition in the base class self.address = _get_temp_domain_socket() DatagramHandlerTest.setUp(self) def tearDown(self): DatagramHandlerTest.tearDown(self) os_helper.unlink(self.address) class SysLogHandlerTest(BaseTest): """Test for SysLogHandler using UDP.""" server_class = TestUDPServer address = ('localhost', 0) def setUp(self): """Set up a UDP server to receive log messages, and a SysLogHandler pointing to that server's address and port.""" BaseTest.setUp(self) # Issue #29177: deal with errors that happen during setup self.server = self.sl_hdlr = self.server_exception = None try: self.server = server = self.server_class(self.address, self.handle_datagram, 0.01) server.start() # Uncomment next line to test error recovery in setUp() # raise OSError('dummy error raised') except OSError as e: self.server_exception = e return server.ready.wait() hcls = logging.handlers.SysLogHandler if isinstance(server.server_address, tuple): self.sl_hdlr = hcls((server.server_address[0], server.port)) else: self.sl_hdlr = hcls(server.server_address) self.log_output = '' self.root_logger.removeHandler(self.root_logger.handlers[0]) self.root_logger.addHandler(self.sl_hdlr) self.handled = threading.Event() def tearDown(self): """Shutdown the server.""" try: if self.server: self.server.stop() if self.sl_hdlr: self.root_logger.removeHandler(self.sl_hdlr) self.sl_hdlr.close() finally: BaseTest.tearDown(self) def handle_datagram(self, request): self.log_output = request.packet self.handled.set() def test_output(self): if self.server_exception: self.skipTest(self.server_exception) # The log message sent to the SysLogHandler is properly received. logger = logging.getLogger("slh") logger.error("sp\xe4m") self.handled.wait() self.assertEqual(self.log_output, b'<11>sp\xc3\xa4m\x00') self.handled.clear() self.sl_hdlr.append_nul = False logger.error("sp\xe4m") self.handled.wait() self.assertEqual(self.log_output, b'<11>sp\xc3\xa4m') self.handled.clear() self.sl_hdlr.ident = "h\xe4m-" logger.error("sp\xe4m") self.handled.wait() self.assertEqual(self.log_output, b'<11>h\xc3\xa4m-sp\xc3\xa4m') @unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") class UnixSysLogHandlerTest(SysLogHandlerTest): """Test for SysLogHandler with Unix sockets.""" if hasattr(socket, "AF_UNIX"): server_class = TestUnixDatagramServer def setUp(self): # override the definition in the base class self.address = _get_temp_domain_socket() SysLogHandlerTest.setUp(self) def tearDown(self): SysLogHandlerTest.tearDown(self) os_helper.unlink(self.address) @unittest.skipUnless(socket_helper.IPV6_ENABLED, 'IPv6 support required for this test.') class IPv6SysLogHandlerTest(SysLogHandlerTest): """Test for SysLogHandler with IPv6 host.""" server_class = TestUDPServer address = ('::1', 0) def setUp(self): self.server_class.address_family = socket.AF_INET6 super(IPv6SysLogHandlerTest, self).setUp() def tearDown(self): self.server_class.address_family = socket.AF_INET super(IPv6SysLogHandlerTest, self).tearDown() class HTTPHandlerTest(BaseTest): """Test for HTTPHandler.""" def setUp(self): """Set up an HTTP server to receive log messages, and a HTTPHandler pointing to that server's address and port.""" BaseTest.setUp(self) self.handled = threading.Event() def handle_request(self, request): self.command = request.command self.log_data = urlparse(request.path) if self.command == 'POST': try: rlen = int(request.headers['Content-Length']) self.post_data = request.rfile.read(rlen) except: self.post_data = None request.send_response(200) request.end_headers() self.handled.set() def test_output(self): # The log message sent to the HTTPHandler is properly received. logger = logging.getLogger("http") root_logger = self.root_logger root_logger.removeHandler(self.root_logger.handlers[0]) for secure in (False, True): addr = ('localhost', 0) if secure: try: import ssl except ImportError: sslctx = None else: here = os.path.dirname(__file__) localhost_cert = os.path.join(here, "keycert.pem") sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER) sslctx.load_cert_chain(localhost_cert) context = ssl.create_default_context(cafile=localhost_cert) else: sslctx = None context = None self.server = server = TestHTTPServer(addr, self.handle_request, 0.01, sslctx=sslctx) server.start() server.ready.wait() host = 'localhost:%d' % server.server_port secure_client = secure and sslctx self.h_hdlr = logging.handlers.HTTPHandler(host, '/frob', secure=secure_client, context=context, credentials=('foo', 'bar')) self.log_data = None root_logger.addHandler(self.h_hdlr) for method in ('GET', 'POST'): self.h_hdlr.method = method self.handled.clear() msg = "sp\xe4m" logger.error(msg) self.handled.wait() self.assertEqual(self.log_data.path, '/frob') self.assertEqual(self.command, method) if method == 'GET': d = parse_qs(self.log_data.query) else: d = parse_qs(self.post_data.decode('utf-8')) self.assertEqual(d['name'], ['http']) self.assertEqual(d['funcName'], ['test_output']) self.assertEqual(d['msg'], [msg]) self.server.stop() self.root_logger.removeHandler(self.h_hdlr) self.h_hdlr.close() class MemoryTest(BaseTest): """Test memory persistence of logger objects.""" def setUp(self): """Create a dict to remember potentially destroyed objects.""" BaseTest.setUp(self) self._survivors = {} def _watch_for_survival(self, *args): """Watch the given objects for survival, by creating weakrefs to them.""" for obj in args: key = id(obj), repr(obj) self._survivors[key] = weakref.ref(obj) def _assertTruesurvival(self): """Assert that all objects watched for survival have survived.""" # Trigger cycle breaking. gc.collect() dead = [] for (id_, repr_), ref in self._survivors.items(): if ref() is None: dead.append(repr_) if dead: self.fail("%d objects should have survived " "but have been destroyed: %s" % (len(dead), ", ".join(dead))) def test_persistent_loggers(self): # Logger objects are persistent and retain their configuration, even # if visible references are destroyed. self.root_logger.setLevel(logging.INFO) foo = logging.getLogger("foo") self._watch_for_survival(foo) foo.setLevel(logging.DEBUG) self.root_logger.debug(self.next_message()) foo.debug(self.next_message()) self.assert_log_lines([ ('foo', 'DEBUG', '2'), ]) del foo # foo has survived. self._assertTruesurvival() # foo has retained its settings. bar = logging.getLogger("foo") bar.debug(self.next_message()) self.assert_log_lines([ ('foo', 'DEBUG', '2'), ('foo', 'DEBUG', '3'), ]) class EncodingTest(BaseTest): def test_encoding_plain_file(self): # In Python 2.x, a plain file object is treated as having no encoding. log = logging.getLogger("test") fd, fn = tempfile.mkstemp(".log", "test_logging-1-") os.close(fd) # the non-ascii data we write to the log. data = "foo\x80" try: handler = logging.FileHandler(fn, encoding="utf-8") log.addHandler(handler) try: # write non-ascii data to the log. log.warning(data) finally: log.removeHandler(handler) handler.close() # check we wrote exactly those bytes, ignoring trailing \n etc f = open(fn, encoding="utf-8") try: self.assertEqual(f.read().rstrip(), data) finally: f.close() finally: if os.path.isfile(fn): os.remove(fn) def test_encoding_cyrillic_unicode(self): log = logging.getLogger("test") # Get a message in Unicode: Do svidanya in Cyrillic (meaning goodbye) message = '\u0434\u043e \u0441\u0432\u0438\u0434\u0430\u043d\u0438\u044f' # Ensure it's written in a Cyrillic encoding writer_class = codecs.getwriter('cp1251') writer_class.encoding = 'cp1251' stream = io.BytesIO() writer = writer_class(stream, 'strict') handler = logging.StreamHandler(writer) log.addHandler(handler) try: log.warning(message) finally: log.removeHandler(handler) handler.close() # check we wrote exactly those bytes, ignoring trailing \n etc s = stream.getvalue() # Compare against what the data should be when encoded in CP-1251 self.assertEqual(s, b'\xe4\xee \xf1\xe2\xe8\xe4\xe0\xed\xe8\xff\n') class WarningsTest(BaseTest): def test_warnings(self): with warnings.catch_warnings(): logging.captureWarnings(True) self.addCleanup(logging.captureWarnings, False) warnings.filterwarnings("always", category=UserWarning) stream = io.StringIO() h = logging.StreamHandler(stream) logger = logging.getLogger("py.warnings") logger.addHandler(h) warnings.warn("I'm warning you...") logger.removeHandler(h) s = stream.getvalue() h.close() self.assertGreater(s.find("UserWarning: I'm warning you...\n"), 0) # See if an explicit file uses the original implementation a_file = io.StringIO() warnings.showwarning("Explicit", UserWarning, "dummy.py", 42, a_file, "Dummy line") s = a_file.getvalue() a_file.close() self.assertEqual(s, "dummy.py:42: UserWarning: Explicit\n Dummy line\n") def test_warnings_no_handlers(self): with warnings.catch_warnings(): logging.captureWarnings(True) self.addCleanup(logging.captureWarnings, False) # confirm our assumption: no loggers are set logger = logging.getLogger("py.warnings") self.assertEqual(logger.handlers, []) warnings.showwarning("Explicit", UserWarning, "dummy.py", 42) self.assertEqual(len(logger.handlers), 1) self.assertIsInstance(logger.handlers[0], logging.NullHandler) def formatFunc(format, datefmt=None): return logging.Formatter(format, datefmt) class myCustomFormatter: def __init__(self, fmt, datefmt=None): pass def handlerFunc(): return logging.StreamHandler() class CustomHandler(logging.StreamHandler): pass class ConfigDictTest(BaseTest): """Reading logging config from a dictionary.""" check_no_resource_warning = warnings_helper.check_no_resource_warning expected_log_pat = r"^(\w+) \+\+ (\w+)$" # config0 is a standard configuration. config0 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'root' : { 'level' : 'WARNING', 'handlers' : ['hand1'], }, } # config1 adds a little to the standard configuration. config1 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # config1a moves the handler to the root. Used with config8a config1a = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', }, }, 'root' : { 'level' : 'WARNING', 'handlers' : ['hand1'], }, } # config2 has a subtle configuration error that should be reported config2 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdbout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # As config1 but with a misspelt level on a handler config2a = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NTOSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # As config1 but with a misspelt level on a logger config2b = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WRANING', }, } # config3 has a less subtle configuration error config3 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'misspelled_name', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # config4 specifies a custom formatter class to be loaded config4 = { 'version': 1, 'formatters': { 'form1' : { '()' : __name__ + '.ExceptionFormatter', 'format' : '%(levelname)s:%(name)s:%(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'root' : { 'level' : 'NOTSET', 'handlers' : ['hand1'], }, } # As config4 but using an actual callable rather than a string config4a = { 'version': 1, 'formatters': { 'form1' : { '()' : ExceptionFormatter, 'format' : '%(levelname)s:%(name)s:%(message)s', }, 'form2' : { '()' : __name__ + '.formatFunc', 'format' : '%(levelname)s:%(name)s:%(message)s', }, 'form3' : { '()' : formatFunc, 'format' : '%(levelname)s:%(name)s:%(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, 'hand2' : { '()' : handlerFunc, }, }, 'root' : { 'level' : 'NOTSET', 'handlers' : ['hand1'], }, } # config5 specifies a custom handler class to be loaded config5 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : __name__ + '.CustomHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # config6 specifies a custom handler class to be loaded # but has bad arguments config6 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : __name__ + '.CustomHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', '9' : 'invalid parameter name', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # config 7 does not define compiler.parser but defines compiler.lexer # so compiler.parser should be disabled after applying it config7 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.lexer' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # config8 defines both compiler and compiler.lexer # so compiler.parser should not be disabled (since # compiler is defined) config8 = { 'version': 1, 'disable_existing_loggers' : False, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, 'compiler.lexer' : { }, }, 'root' : { 'level' : 'WARNING', }, } # config8a disables existing loggers config8a = { 'version': 1, 'disable_existing_loggers' : True, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, 'compiler.lexer' : { }, }, 'root' : { 'level' : 'WARNING', }, } config9 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'WARNING', 'stream' : 'ext://sys.stdout', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'WARNING', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'NOTSET', }, } config9a = { 'version': 1, 'incremental' : True, 'handlers' : { 'hand1' : { 'level' : 'WARNING', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'INFO', }, }, } config9b = { 'version': 1, 'incremental' : True, 'handlers' : { 'hand1' : { 'level' : 'INFO', }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'INFO', }, }, } # As config1 but with a filter added config10 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'filters' : { 'filt1' : { 'name' : 'compiler.parser', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', 'filters' : ['filt1'], }, }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'filters' : ['filt1'], }, }, 'root' : { 'level' : 'WARNING', 'handlers' : ['hand1'], }, } # As config1 but using cfg:// references config11 = { 'version': 1, 'true_formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handler_configs': { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'formatters' : 'cfg://true_formatters', 'handlers' : { 'hand1' : 'cfg://handler_configs[hand1]', }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # As config11 but missing the version key config12 = { 'true_formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handler_configs': { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'formatters' : 'cfg://true_formatters', 'handlers' : { 'hand1' : 'cfg://handler_configs[hand1]', }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # As config11 but using an unsupported version config13 = { 'version': 2, 'true_formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handler_configs': { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', }, }, 'formatters' : 'cfg://true_formatters', 'handlers' : { 'hand1' : 'cfg://handler_configs[hand1]', }, 'loggers' : { 'compiler.parser' : { 'level' : 'DEBUG', 'handlers' : ['hand1'], }, }, 'root' : { 'level' : 'WARNING', }, } # As config0, but with properties config14 = { 'version': 1, 'formatters': { 'form1' : { 'format' : '%(levelname)s ++ %(message)s', }, }, 'handlers' : { 'hand1' : { 'class' : 'logging.StreamHandler', 'formatter' : 'form1', 'level' : 'NOTSET', 'stream' : 'ext://sys.stdout', '.': { 'foo': 'bar', 'terminator': '!\n', } }, }, 'root' : { 'level' : 'WARNING', 'handlers' : ['hand1'], }, } out_of_order = { "version": 1, "formatters": { "mySimpleFormatter": { "format": "%(asctime)s (%(name)s) %(levelname)s: %(message)s", "style": "$" } }, "handlers": { "fileGlobal": { "class": "logging.StreamHandler", "level": "DEBUG", "formatter": "mySimpleFormatter" }, "bufferGlobal": { "class": "logging.handlers.MemoryHandler", "capacity": 5, "formatter": "mySimpleFormatter", "target": "fileGlobal", "level": "DEBUG" } }, "loggers": { "mymodule": { "level": "DEBUG", "handlers": ["bufferGlobal"], "propagate": "true" } } } # Configuration with custom logging.Formatter subclass as '()' key and 'validate' set to False custom_formatter_class_validate = { 'version': 1, 'formatters': { 'form1': { '()': __name__ + '.ExceptionFormatter', 'format': '%(levelname)s:%(name)s:%(message)s', 'validate': False, }, }, 'handlers' : { 'hand1' : { 'class': 'logging.StreamHandler', 'formatter': 'form1', 'level': 'NOTSET', 'stream': 'ext://sys.stdout', }, }, "loggers": { "my_test_logger_custom_formatter": { "level": "DEBUG", "handlers": ["hand1"], "propagate": "true" } } } # Configuration with custom logging.Formatter subclass as 'class' key and 'validate' set to False custom_formatter_class_validate2 = { 'version': 1, 'formatters': { 'form1': { 'class': __name__ + '.ExceptionFormatter', 'format': '%(levelname)s:%(name)s:%(message)s', 'validate': False, }, }, 'handlers' : { 'hand1' : { 'class': 'logging.StreamHandler', 'formatter': 'form1', 'level': 'NOTSET', 'stream': 'ext://sys.stdout', }, }, "loggers": { "my_test_logger_custom_formatter": { "level": "DEBUG", "handlers": ["hand1"], "propagate": "true" } } } # Configuration with custom class that is not inherited from logging.Formatter custom_formatter_class_validate3 = { 'version': 1, 'formatters': { 'form1': { 'class': __name__ + '.myCustomFormatter', 'format': '%(levelname)s:%(name)s:%(message)s', 'validate': False, }, }, 'handlers' : { 'hand1' : { 'class': 'logging.StreamHandler', 'formatter': 'form1', 'level': 'NOTSET', 'stream': 'ext://sys.stdout', }, }, "loggers": { "my_test_logger_custom_formatter": { "level": "DEBUG", "handlers": ["hand1"], "propagate": "true" } } } # Configuration with custom function and 'validate' set to False custom_formatter_with_function = { 'version': 1, 'formatters': { 'form1': { '()': formatFunc, 'format': '%(levelname)s:%(name)s:%(message)s', 'validate': False, }, }, 'handlers' : { 'hand1' : { 'class': 'logging.StreamHandler', 'formatter': 'form1', 'level': 'NOTSET', 'stream': 'ext://sys.stdout', }, }, "loggers": { "my_test_logger_custom_formatter": { "level": "DEBUG", "handlers": ["hand1"], "propagate": "true" } } } def apply_config(self, conf): logging.config.dictConfig(conf) def test_config0_ok(self): # A simple config which overrides the default settings. with support.captured_stdout() as output: self.apply_config(self.config0) logger = logging.getLogger() # Won't output anything logger.info(self.next_message()) # Outputs a message logger.error(self.next_message()) self.assert_log_lines([ ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config1_ok(self, config=config1): # A config defining a sub-parser as well. with support.captured_stdout() as output: self.apply_config(config) logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config2_failure(self): # A simple config which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config2) def test_config2a_failure(self): # A simple config which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config2a) def test_config2b_failure(self): # A simple config which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config2b) def test_config3_failure(self): # A simple config which overrides the default settings. self.assertRaises(Exception, self.apply_config, self.config3) def test_config4_ok(self): # A config specifying a custom formatter class. with support.captured_stdout() as output: self.apply_config(self.config4) #logger = logging.getLogger() try: raise RuntimeError() except RuntimeError: logging.exception("just testing") sys.stdout.seek(0) self.assertEqual(output.getvalue(), "ERROR:root:just testing\nGot a [RuntimeError]\n") # Original logger output is empty self.assert_log_lines([]) def test_config4a_ok(self): # A config specifying a custom formatter class. with support.captured_stdout() as output: self.apply_config(self.config4a) #logger = logging.getLogger() try: raise RuntimeError() except RuntimeError: logging.exception("just testing") sys.stdout.seek(0) self.assertEqual(output.getvalue(), "ERROR:root:just testing\nGot a [RuntimeError]\n") # Original logger output is empty self.assert_log_lines([]) def test_config5_ok(self): self.test_config1_ok(config=self.config5) def test_config6_failure(self): self.assertRaises(Exception, self.apply_config, self.config6) def test_config7_ok(self): with support.captured_stdout() as output: self.apply_config(self.config1) logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) with support.captured_stdout() as output: self.apply_config(self.config7) logger = logging.getLogger("compiler.parser") self.assertTrue(logger.disabled) logger = logging.getLogger("compiler.lexer") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '3'), ('ERROR', '4'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) # Same as test_config_7_ok but don't disable old loggers. def test_config_8_ok(self): with support.captured_stdout() as output: self.apply_config(self.config1) logger = logging.getLogger("compiler.parser") # All will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) with support.captured_stdout() as output: self.apply_config(self.config8) logger = logging.getLogger("compiler.parser") self.assertFalse(logger.disabled) # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) logger = logging.getLogger("compiler.lexer") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '3'), ('ERROR', '4'), ('INFO', '5'), ('ERROR', '6'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config_8a_ok(self): with support.captured_stdout() as output: self.apply_config(self.config1a) logger = logging.getLogger("compiler.parser") # See issue #11424. compiler-hyphenated sorts # between compiler and compiler.xyz and this # was preventing compiler.xyz from being included # in the child loggers of compiler because of an # overzealous loop termination condition. hyphenated = logging.getLogger('compiler-hyphenated') # All will output a message logger.info(self.next_message()) logger.error(self.next_message()) hyphenated.critical(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ('CRITICAL', '3'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) with support.captured_stdout() as output: self.apply_config(self.config8a) logger = logging.getLogger("compiler.parser") self.assertFalse(logger.disabled) # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) logger = logging.getLogger("compiler.lexer") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) # Will not appear hyphenated.critical(self.next_message()) self.assert_log_lines([ ('INFO', '4'), ('ERROR', '5'), ('INFO', '6'), ('ERROR', '7'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_config_9_ok(self): with support.captured_stdout() as output: self.apply_config(self.config9) logger = logging.getLogger("compiler.parser") # Nothing will be output since both handler and logger are set to WARNING logger.info(self.next_message()) self.assert_log_lines([], stream=output) self.apply_config(self.config9a) # Nothing will be output since handler is still set to WARNING logger.info(self.next_message()) self.assert_log_lines([], stream=output) self.apply_config(self.config9b) # Message should now be output logger.info(self.next_message()) self.assert_log_lines([ ('INFO', '3'), ], stream=output) def test_config_10_ok(self): with support.captured_stdout() as output: self.apply_config(self.config10) logger = logging.getLogger("compiler.parser") logger.warning(self.next_message()) logger = logging.getLogger('compiler') # Not output, because filtered logger.warning(self.next_message()) logger = logging.getLogger('compiler.lexer') # Not output, because filtered logger.warning(self.next_message()) logger = logging.getLogger("compiler.parser.codegen") # Output, as not filtered logger.error(self.next_message()) self.assert_log_lines([ ('WARNING', '1'), ('ERROR', '4'), ], stream=output) def test_config11_ok(self): self.test_config1_ok(self.config11) def test_config12_failure(self): self.assertRaises(Exception, self.apply_config, self.config12) def test_config13_failure(self): self.assertRaises(Exception, self.apply_config, self.config13) def test_config14_ok(self): with support.captured_stdout() as output: self.apply_config(self.config14) h = logging._handlers['hand1'] self.assertEqual(h.foo, 'bar') self.assertEqual(h.terminator, '!\n') logging.warning('Exclamation') self.assertTrue(output.getvalue().endswith('Exclamation!\n')) def test_config15_ok(self): def cleanup(h1, fn): h1.close() os.remove(fn) with self.check_no_resource_warning(): fd, fn = tempfile.mkstemp(".log", "test_logging-X-") os.close(fd) config = { "version": 1, "handlers": { "file": { "class": "logging.FileHandler", "filename": fn, "encoding": "utf-8", } }, "root": { "handlers": ["file"] } } self.apply_config(config) self.apply_config(config) handler = logging.root.handlers[0] self.addCleanup(cleanup, handler, fn) def setup_via_listener(self, text, verify=None): text = text.encode("utf-8") # Ask for a randomly assigned port (by using port 0) t = logging.config.listen(0, verify) t.start() t.ready.wait() # Now get the port allocated port = t.port t.ready.clear() try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(2.0) sock.connect(('localhost', port)) slen = struct.pack('>L', len(text)) s = slen + text sentsofar = 0 left = len(s) while left > 0: sent = sock.send(s[sentsofar:]) sentsofar += sent left -= sent sock.close() finally: t.ready.wait(2.0) logging.config.stopListening() threading_helper.join_thread(t) def test_listen_config_10_ok(self): with support.captured_stdout() as output: self.setup_via_listener(json.dumps(self.config10)) logger = logging.getLogger("compiler.parser") logger.warning(self.next_message()) logger = logging.getLogger('compiler') # Not output, because filtered logger.warning(self.next_message()) logger = logging.getLogger('compiler.lexer') # Not output, because filtered logger.warning(self.next_message()) logger = logging.getLogger("compiler.parser.codegen") # Output, as not filtered logger.error(self.next_message()) self.assert_log_lines([ ('WARNING', '1'), ('ERROR', '4'), ], stream=output) def test_listen_config_1_ok(self): with support.captured_stdout() as output: self.setup_via_listener(textwrap.dedent(ConfigFileTest.config1)) logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], stream=output) # Original logger output is empty. self.assert_log_lines([]) def test_listen_verify(self): def verify_fail(stuff): return None def verify_reverse(stuff): return stuff[::-1] logger = logging.getLogger("compiler.parser") to_send = textwrap.dedent(ConfigFileTest.config1) # First, specify a verification function that will fail. # We expect to see no output, since our configuration # never took effect. with support.captured_stdout() as output: self.setup_via_listener(to_send, verify_fail) # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([], stream=output) # Original logger output has the stuff we logged. self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], pat=r"^[\w.]+ -> (\w+): (\d+)$") # Now, perform no verification. Our configuration # should take effect. with support.captured_stdout() as output: self.setup_via_listener(to_send) # no verify callable specified logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '3'), ('ERROR', '4'), ], stream=output) # Original logger output still has the stuff we logged before. self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], pat=r"^[\w.]+ -> (\w+): (\d+)$") # Now, perform verification which transforms the bytes. with support.captured_stdout() as output: self.setup_via_listener(to_send[::-1], verify_reverse) logger = logging.getLogger("compiler.parser") # Both will output a message logger.info(self.next_message()) logger.error(self.next_message()) self.assert_log_lines([ ('INFO', '5'), ('ERROR', '6'), ], stream=output) # Original logger output still has the stuff we logged before. self.assert_log_lines([ ('INFO', '1'), ('ERROR', '2'), ], pat=r"^[\w.]+ -> (\w+): (\d+)$") def test_out_of_order(self): self.assertRaises(ValueError, self.apply_config, self.out_of_order) def test_out_of_order_with_dollar_style(self): config = copy.deepcopy(self.out_of_order) config['formatters']['mySimpleFormatter']['format'] = "${asctime} (${name}) ${levelname}: ${message}" self.apply_config(config) handler = logging.getLogger('mymodule').handlers[0] self.assertIsInstance(handler.target, logging.Handler) self.assertIsInstance(handler.formatter._style, logging.StringTemplateStyle) def test_custom_formatter_class_with_validate(self): self.apply_config(self.custom_formatter_class_validate) handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] self.assertIsInstance(handler.formatter, ExceptionFormatter) def test_custom_formatter_class_with_validate2(self): self.apply_config(self.custom_formatter_class_validate2) handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] self.assertIsInstance(handler.formatter, ExceptionFormatter) def test_custom_formatter_class_with_validate2_with_wrong_fmt(self): config = self.custom_formatter_class_validate.copy() config['formatters']['form1']['style'] = "$" # Exception should not be raise as we have configured 'validate' to False self.apply_config(config) handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] self.assertIsInstance(handler.formatter, ExceptionFormatter) def test_custom_formatter_class_with_validate3(self): self.assertRaises(ValueError, self.apply_config, self.custom_formatter_class_validate3) def test_custom_formatter_function_with_validate(self): self.assertRaises(ValueError, self.apply_config, self.custom_formatter_with_function) def test_baseconfig(self): d = { 'atuple': (1, 2, 3), 'alist': ['a', 'b', 'c'], 'adict': {'d': 'e', 'f': 3 }, 'nest1': ('g', ('h', 'i'), 'j'), 'nest2': ['k', ['l', 'm'], 'n'], 'nest3': ['o', 'cfg://alist', 'p'], } bc = logging.config.BaseConfigurator(d) self.assertEqual(bc.convert('cfg://atuple[1]'), 2) self.assertEqual(bc.convert('cfg://alist[1]'), 'b') self.assertEqual(bc.convert('cfg://nest1[1][0]'), 'h') self.assertEqual(bc.convert('cfg://nest2[1][1]'), 'm') self.assertEqual(bc.convert('cfg://adict.d'), 'e') self.assertEqual(bc.convert('cfg://adict[f]'), 3) v = bc.convert('cfg://nest3') self.assertEqual(v.pop(1), ['a', 'b', 'c']) self.assertRaises(KeyError, bc.convert, 'cfg://nosuch') self.assertRaises(ValueError, bc.convert, 'cfg://!') self.assertRaises(KeyError, bc.convert, 'cfg://adict[2]') def test_namedtuple(self): # see bpo-39142 from collections import namedtuple class MyHandler(logging.StreamHandler): def __init__(self, resource, *args, **kwargs): super().__init__(*args, **kwargs) self.resource: namedtuple = resource def emit(self, record): record.msg += f' {self.resource.type}' return super().emit(record) Resource = namedtuple('Resource', ['type', 'labels']) resource = Resource(type='my_type', labels=['a']) config = { 'version': 1, 'handlers': { 'myhandler': { '()': MyHandler, 'resource': resource } }, 'root': {'level': 'INFO', 'handlers': ['myhandler']}, } with support.captured_stderr() as stderr: self.apply_config(config) logging.info('some log') self.assertEqual(stderr.getvalue(), 'some log my_type\n') class ManagerTest(BaseTest): def test_manager_loggerclass(self): logged = [] class MyLogger(logging.Logger): def _log(self, level, msg, args, exc_info=None, extra=None): logged.append(msg) man = logging.Manager(None) self.assertRaises(TypeError, man.setLoggerClass, int) man.setLoggerClass(MyLogger) logger = man.getLogger('test') logger.warning('should appear in logged') logging.warning('should not appear in logged') self.assertEqual(logged, ['should appear in logged']) def test_set_log_record_factory(self): man = logging.Manager(None) expected = object() man.setLogRecordFactory(expected) self.assertEqual(man.logRecordFactory, expected) class ChildLoggerTest(BaseTest): def test_child_loggers(self): r = logging.getLogger() l1 = logging.getLogger('abc') l2 = logging.getLogger('def.ghi') c1 = r.getChild('xyz') c2 = r.getChild('uvw.xyz') self.assertIs(c1, logging.getLogger('xyz')) self.assertIs(c2, logging.getLogger('uvw.xyz')) c1 = l1.getChild('def') c2 = c1.getChild('ghi') c3 = l1.getChild('def.ghi') self.assertIs(c1, logging.getLogger('abc.def')) self.assertIs(c2, logging.getLogger('abc.def.ghi')) self.assertIs(c2, c3) class DerivedLogRecord(logging.LogRecord): pass class LogRecordFactoryTest(BaseTest): def setUp(self): class CheckingFilter(logging.Filter): def __init__(self, cls): self.cls = cls def filter(self, record): t = type(record) if t is not self.cls: msg = 'Unexpected LogRecord type %s, expected %s' % (t, self.cls) raise TypeError(msg) return True BaseTest.setUp(self) self.filter = CheckingFilter(DerivedLogRecord) self.root_logger.addFilter(self.filter) self.orig_factory = logging.getLogRecordFactory() def tearDown(self): self.root_logger.removeFilter(self.filter) BaseTest.tearDown(self) logging.setLogRecordFactory(self.orig_factory) def test_logrecord_class(self): self.assertRaises(TypeError, self.root_logger.warning, self.next_message()) logging.setLogRecordFactory(DerivedLogRecord) self.root_logger.error(self.next_message()) self.assert_log_lines([ ('root', 'ERROR', '2'), ]) class QueueHandlerTest(BaseTest): # Do not bother with a logger name group. expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" def setUp(self): BaseTest.setUp(self) self.queue = queue.Queue(-1) self.que_hdlr = logging.handlers.QueueHandler(self.queue) self.name = 'que' self.que_logger = logging.getLogger('que') self.que_logger.propagate = False self.que_logger.setLevel(logging.WARNING) self.que_logger.addHandler(self.que_hdlr) def tearDown(self): self.que_hdlr.close() BaseTest.tearDown(self) def test_queue_handler(self): self.que_logger.debug(self.next_message()) self.assertRaises(queue.Empty, self.queue.get_nowait) self.que_logger.info(self.next_message()) self.assertRaises(queue.Empty, self.queue.get_nowait) msg = self.next_message() self.que_logger.warning(msg) data = self.queue.get_nowait() self.assertTrue(isinstance(data, logging.LogRecord)) self.assertEqual(data.name, self.que_logger.name) self.assertEqual((data.msg, data.args), (msg, None)) def test_formatting(self): msg = self.next_message() levelname = logging.getLevelName(logging.WARNING) log_format_str = '{name} -> {levelname}: {message}' formatted_msg = log_format_str.format(name=self.name, levelname=levelname, message=msg) formatter = logging.Formatter(self.log_format) self.que_hdlr.setFormatter(formatter) self.que_logger.warning(msg) log_record = self.queue.get_nowait() self.assertEqual(formatted_msg, log_record.msg) self.assertEqual(formatted_msg, log_record.message) @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), 'logging.handlers.QueueListener required for this test') def test_queue_listener(self): handler = TestHandler(support.Matcher()) listener = logging.handlers.QueueListener(self.queue, handler) listener.start() try: self.que_logger.warning(self.next_message()) self.que_logger.error(self.next_message()) self.que_logger.critical(self.next_message()) finally: listener.stop() self.assertTrue(handler.matches(levelno=logging.WARNING, message='1')) self.assertTrue(handler.matches(levelno=logging.ERROR, message='2')) self.assertTrue(handler.matches(levelno=logging.CRITICAL, message='3')) handler.close() # Now test with respect_handler_level set handler = TestHandler(support.Matcher()) handler.setLevel(logging.CRITICAL) listener = logging.handlers.QueueListener(self.queue, handler, respect_handler_level=True) listener.start() try: self.que_logger.warning(self.next_message()) self.que_logger.error(self.next_message()) self.que_logger.critical(self.next_message()) finally: listener.stop() self.assertFalse(handler.matches(levelno=logging.WARNING, message='4')) self.assertFalse(handler.matches(levelno=logging.ERROR, message='5')) self.assertTrue(handler.matches(levelno=logging.CRITICAL, message='6')) handler.close() @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), 'logging.handlers.QueueListener required for this test') def test_queue_listener_with_StreamHandler(self): # Test that traceback only appends once (bpo-34334). listener = logging.handlers.QueueListener(self.queue, self.root_hdlr) listener.start() try: 1 / 0 except ZeroDivisionError as e: exc = e self.que_logger.exception(self.next_message(), exc_info=exc) listener.stop() self.assertEqual(self.stream.getvalue().strip().count('Traceback'), 1) @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), 'logging.handlers.QueueListener required for this test') def test_queue_listener_with_multiple_handlers(self): # Test that queue handler format doesn't affect other handler formats (bpo-35726). self.que_hdlr.setFormatter(self.root_formatter) self.que_logger.addHandler(self.root_hdlr) listener = logging.handlers.QueueListener(self.queue, self.que_hdlr) listener.start() self.que_logger.error("error") listener.stop() self.assertEqual(self.stream.getvalue().strip(), "que -> ERROR: error") if hasattr(logging.handlers, 'QueueListener'): import multiprocessing from unittest.mock import patch class QueueListenerTest(BaseTest): """ Tests based on patch submitted for issue #27930. Ensure that QueueListener handles all log messages. """ repeat = 20 @staticmethod def setup_and_log(log_queue, ident): """ Creates a logger with a QueueHandler that logs to a queue read by a QueueListener. Starts the listener, logs five messages, and stops the listener. """ logger = logging.getLogger('test_logger_with_id_%s' % ident) logger.setLevel(logging.DEBUG) handler = logging.handlers.QueueHandler(log_queue) logger.addHandler(handler) listener = logging.handlers.QueueListener(log_queue) listener.start() logger.info('one') logger.info('two') logger.info('three') logger.info('four') logger.info('five') listener.stop() logger.removeHandler(handler) handler.close() @patch.object(logging.handlers.QueueListener, 'handle') def test_handle_called_with_queue_queue(self, mock_handle): for i in range(self.repeat): log_queue = queue.Queue() self.setup_and_log(log_queue, '%s_%s' % (self.id(), i)) self.assertEqual(mock_handle.call_count, 5 * self.repeat, 'correct number of handled log messages') @patch.object(logging.handlers.QueueListener, 'handle') def test_handle_called_with_mp_queue(self, mock_handle): # bpo-28668: The multiprocessing (mp) module is not functional # when the mp.synchronize module cannot be imported. support.skip_if_broken_multiprocessing_synchronize() for i in range(self.repeat): log_queue = multiprocessing.Queue() self.setup_and_log(log_queue, '%s_%s' % (self.id(), i)) log_queue.close() log_queue.join_thread() self.assertEqual(mock_handle.call_count, 5 * self.repeat, 'correct number of handled log messages') @staticmethod def get_all_from_queue(log_queue): try: while True: yield log_queue.get_nowait() except queue.Empty: return [] def test_no_messages_in_queue_after_stop(self): """ Five messages are logged then the QueueListener is stopped. This test then gets everything off the queue. Failure of this test indicates that messages were not registered on the queue until _after_ the QueueListener stopped. """ # bpo-28668: The multiprocessing (mp) module is not functional # when the mp.synchronize module cannot be imported. support.skip_if_broken_multiprocessing_synchronize() for i in range(self.repeat): queue = multiprocessing.Queue() self.setup_and_log(queue, '%s_%s' %(self.id(), i)) # time.sleep(1) items = list(self.get_all_from_queue(queue)) queue.close() queue.join_thread() expected = [[], [logging.handlers.QueueListener._sentinel]] self.assertIn(items, expected, 'Found unexpected messages in queue: %s' % ( [m.msg if isinstance(m, logging.LogRecord) else m for m in items])) def test_calls_task_done_after_stop(self): # Issue 36813: Make sure queue.join does not deadlock. log_queue = queue.Queue() listener = logging.handlers.QueueListener(log_queue) listener.start() listener.stop() with self.assertRaises(ValueError): # Make sure all tasks are done and .join won't block. log_queue.task_done() ZERO = datetime.timedelta(0) class UTC(datetime.tzinfo): def utcoffset(self, dt): return ZERO dst = utcoffset def tzname(self, dt): return 'UTC' utc = UTC() class AssertErrorMessage: def assert_error_message(self, exception, message, *args, **kwargs): try: self.assertRaises((), *args, **kwargs) except exception as e: self.assertEqual(message, str(e)) class FormatterTest(unittest.TestCase, AssertErrorMessage): def setUp(self): self.common = { 'name': 'formatter.test', 'level': logging.DEBUG, 'pathname': os.path.join('path', 'to', 'dummy.ext'), 'lineno': 42, 'exc_info': None, 'func': None, 'msg': 'Message with %d %s', 'args': (2, 'placeholders'), } self.variants = { 'custom': { 'custom': 1234 } } def get_record(self, name=None): result = dict(self.common) if name is not None: result.update(self.variants[name]) return logging.makeLogRecord(result) def test_percent(self): # Test %-formatting r = self.get_record() f = logging.Formatter('${%(message)s}') self.assertEqual(f.format(r), '${Message with 2 placeholders}') f = logging.Formatter('%(random)s') self.assertRaises(ValueError, f.format, r) self.assertFalse(f.usesTime()) f = logging.Formatter('%(asctime)s') self.assertTrue(f.usesTime()) f = logging.Formatter('%(asctime)-15s') self.assertTrue(f.usesTime()) f = logging.Formatter('%(asctime)#15s') self.assertTrue(f.usesTime()) def test_braces(self): # Test {}-formatting r = self.get_record() f = logging.Formatter('$%{message}%$', style='{') self.assertEqual(f.format(r), '$%Message with 2 placeholders%$') f = logging.Formatter('{random}', style='{') self.assertRaises(ValueError, f.format, r) f = logging.Formatter("{message}", style='{') self.assertFalse(f.usesTime()) f = logging.Formatter('{asctime}', style='{') self.assertTrue(f.usesTime()) f = logging.Formatter('{asctime!s:15}', style='{') self.assertTrue(f.usesTime()) f = logging.Formatter('{asctime:15}', style='{') self.assertTrue(f.usesTime()) def test_dollars(self): # Test $-formatting r = self.get_record() f = logging.Formatter('${message}', style='$') self.assertEqual(f.format(r), 'Message with 2 placeholders') f = logging.Formatter('$message', style='$') self.assertEqual(f.format(r), 'Message with 2 placeholders') f = logging.Formatter('$$%${message}%$$', style='$') self.assertEqual(f.format(r), '$%Message with 2 placeholders%$') f = logging.Formatter('${random}', style='$') self.assertRaises(ValueError, f.format, r) self.assertFalse(f.usesTime()) f = logging.Formatter('${asctime}', style='$') self.assertTrue(f.usesTime()) f = logging.Formatter('$asctime', style='$') self.assertTrue(f.usesTime()) f = logging.Formatter('${message}', style='$') self.assertFalse(f.usesTime()) f = logging.Formatter('${asctime}--', style='$') self.assertTrue(f.usesTime()) def test_format_validate(self): # Check correct formatting # Percentage style f = logging.Formatter("%(levelname)-15s - %(message) 5s - %(process)03d - %(module) - %(asctime)*.3s") self.assertEqual(f._fmt, "%(levelname)-15s - %(message) 5s - %(process)03d - %(module) - %(asctime)*.3s") f = logging.Formatter("%(asctime)*s - %(asctime)*.3s - %(process)-34.33o") self.assertEqual(f._fmt, "%(asctime)*s - %(asctime)*.3s - %(process)-34.33o") f = logging.Formatter("%(process)#+027.23X") self.assertEqual(f._fmt, "%(process)#+027.23X") f = logging.Formatter("%(foo)#.*g") self.assertEqual(f._fmt, "%(foo)#.*g") # StrFormat Style f = logging.Formatter("$%{message}%$ - {asctime!a:15} - {customfield['key']}", style="{") self.assertEqual(f._fmt, "$%{message}%$ - {asctime!a:15} - {customfield['key']}") f = logging.Formatter("{process:.2f} - {custom.f:.4f}", style="{") self.assertEqual(f._fmt, "{process:.2f} - {custom.f:.4f}") f = logging.Formatter("{customfield!s:#<30}", style="{") self.assertEqual(f._fmt, "{customfield!s:#<30}") f = logging.Formatter("{message!r}", style="{") self.assertEqual(f._fmt, "{message!r}") f = logging.Formatter("{message!s}", style="{") self.assertEqual(f._fmt, "{message!s}") f = logging.Formatter("{message!a}", style="{") self.assertEqual(f._fmt, "{message!a}") f = logging.Formatter("{process!r:4.2}", style="{") self.assertEqual(f._fmt, "{process!r:4.2}") f = logging.Formatter("{process!s:<#30,.12f}- {custom:=+#30,.1d} - {module:^30}", style="{") self.assertEqual(f._fmt, "{process!s:<#30,.12f}- {custom:=+#30,.1d} - {module:^30}") f = logging.Formatter("{process!s:{w},.{p}}", style="{") self.assertEqual(f._fmt, "{process!s:{w},.{p}}") f = logging.Formatter("{foo:12.{p}}", style="{") self.assertEqual(f._fmt, "{foo:12.{p}}") f = logging.Formatter("{foo:{w}.6}", style="{") self.assertEqual(f._fmt, "{foo:{w}.6}") f = logging.Formatter("{foo[0].bar[1].baz}", style="{") self.assertEqual(f._fmt, "{foo[0].bar[1].baz}") f = logging.Formatter("{foo[k1].bar[k2].baz}", style="{") self.assertEqual(f._fmt, "{foo[k1].bar[k2].baz}") f = logging.Formatter("{12[k1].bar[k2].baz}", style="{") self.assertEqual(f._fmt, "{12[k1].bar[k2].baz}") # Dollar style f = logging.Formatter("${asctime} - $message", style="$") self.assertEqual(f._fmt, "${asctime} - $message") f = logging.Formatter("$bar $$", style="$") self.assertEqual(f._fmt, "$bar $$") f = logging.Formatter("$bar $$$$", style="$") self.assertEqual(f._fmt, "$bar $$$$") # this would print two $($$) # Testing when ValueError being raised from incorrect format # Percentage Style self.assertRaises(ValueError, logging.Formatter, "%(asctime)Z") self.assertRaises(ValueError, logging.Formatter, "%(asctime)b") self.assertRaises(ValueError, logging.Formatter, "%(asctime)*") self.assertRaises(ValueError, logging.Formatter, "%(asctime)*3s") self.assertRaises(ValueError, logging.Formatter, "%(asctime)_") self.assertRaises(ValueError, logging.Formatter, '{asctime}') self.assertRaises(ValueError, logging.Formatter, '${message}') self.assertRaises(ValueError, logging.Formatter, '%(foo)#12.3*f') # with both * and decimal number as precision self.assertRaises(ValueError, logging.Formatter, '%(foo)0*.8*f') # StrFormat Style # Testing failure for '-' in field name self.assert_error_message( ValueError, "invalid format: invalid field name/expression: 'name-thing'", logging.Formatter, "{name-thing}", style="{" ) # Testing failure for style mismatch self.assert_error_message( ValueError, "invalid format: no fields", logging.Formatter, '%(asctime)s', style='{' ) # Testing failure for invalid conversion self.assert_error_message( ValueError, "invalid conversion: 'Z'" ) self.assertRaises(ValueError, logging.Formatter, '{asctime!s:#30,15f}', style='{') self.assert_error_message( ValueError, "invalid format: expected ':' after conversion specifier", logging.Formatter, '{asctime!aa:15}', style='{' ) # Testing failure for invalid spec self.assert_error_message( ValueError, "invalid format: bad specifier: '.2ff'", logging.Formatter, '{process:.2ff}', style='{' ) self.assertRaises(ValueError, logging.Formatter, '{process:.2Z}', style='{') self.assertRaises(ValueError, logging.Formatter, '{process!s:<##30,12g}', style='{') self.assertRaises(ValueError, logging.Formatter, '{process!s:<#30#,12g}', style='{') self.assertRaises(ValueError, logging.Formatter, '{process!s:{{w}},{{p}}}', style='{') # Testing failure for mismatch braces self.assert_error_message( ValueError, "invalid format: expected '}' before end of string", logging.Formatter, '{process', style='{' ) self.assert_error_message( ValueError, "invalid format: Single '}' encountered in format string", logging.Formatter, 'process}', style='{' ) self.assertRaises(ValueError, logging.Formatter, '{{foo!r:4.2}', style='{') self.assertRaises(ValueError, logging.Formatter, '{{foo!r:4.2}}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo/bar}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo:{{w}}.{{p}}}}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo!X:{{w}}.{{p}}}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo!a:random}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo!a:ran{dom}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo!a:ran{d}om}', style='{') self.assertRaises(ValueError, logging.Formatter, '{foo.!a:d}', style='{') # Dollar style # Testing failure for mismatch bare $ self.assert_error_message( ValueError, "invalid format: bare \'$\' not allowed", logging.Formatter, '$bar $$$', style='$' ) self.assert_error_message( ValueError, "invalid format: bare \'$\' not allowed", logging.Formatter, 'bar $', style='$' ) self.assert_error_message( ValueError, "invalid format: bare \'$\' not allowed", logging.Formatter, 'foo $.', style='$' ) # Testing failure for mismatch style self.assert_error_message( ValueError, "invalid format: no fields", logging.Formatter, '{asctime}', style='$' ) self.assertRaises(ValueError, logging.Formatter, '%(asctime)s', style='$') # Testing failure for incorrect fields self.assert_error_message( ValueError, "invalid format: no fields", logging.Formatter, 'foo', style='$' ) self.assertRaises(ValueError, logging.Formatter, '${asctime', style='$') def test_defaults_parameter(self): fmts = ['%(custom)s %(message)s', '{custom} {message}', '$custom $message'] styles = ['%', '{', '$'] for fmt, style in zip(fmts, styles): f = logging.Formatter(fmt, style=style, defaults={'custom': 'Default'}) r = self.get_record() self.assertEqual(f.format(r), 'Default Message with 2 placeholders') r = self.get_record("custom") self.assertEqual(f.format(r), '1234 Message with 2 placeholders') # Without default f = logging.Formatter(fmt, style=style) r = self.get_record() self.assertRaises(ValueError, f.format, r) # Non-existing default is ignored f = logging.Formatter(fmt, style=style, defaults={'Non-existing': 'Default'}) r = self.get_record("custom") self.assertEqual(f.format(r), '1234 Message with 2 placeholders') def test_invalid_style(self): self.assertRaises(ValueError, logging.Formatter, None, None, 'x') def test_time(self): r = self.get_record() dt = datetime.datetime(1993, 4, 21, 8, 3, 0, 0, utc) # We use None to indicate we want the local timezone # We're essentially converting a UTC time to local time r.created = time.mktime(dt.astimezone(None).timetuple()) r.msecs = 123 f = logging.Formatter('%(asctime)s %(message)s') f.converter = time.gmtime self.assertEqual(f.formatTime(r), '1993-04-21 08:03:00,123') self.assertEqual(f.formatTime(r, '%Y:%d'), '1993:21') f.format(r) self.assertEqual(r.asctime, '1993-04-21 08:03:00,123') def test_default_msec_format_none(self): class NoMsecFormatter(logging.Formatter): default_msec_format = None default_time_format = '%d/%m/%Y %H:%M:%S' r = self.get_record() dt = datetime.datetime(1993, 4, 21, 8, 3, 0, 123, utc) r.created = time.mktime(dt.astimezone(None).timetuple()) f = NoMsecFormatter() f.converter = time.gmtime self.assertEqual(f.formatTime(r), '21/04/1993 08:03:00') class TestBufferingFormatter(logging.BufferingFormatter): def formatHeader(self, records): return '[(%d)' % len(records) def formatFooter(self, records): return '(%d)]' % len(records) class BufferingFormatterTest(unittest.TestCase): def setUp(self): self.records = [ logging.makeLogRecord({'msg': 'one'}), logging.makeLogRecord({'msg': 'two'}), ] def test_default(self): f = logging.BufferingFormatter() self.assertEqual('', f.format([])) self.assertEqual('onetwo', f.format(self.records)) def test_custom(self): f = TestBufferingFormatter() self.assertEqual('[(2)onetwo(2)]', f.format(self.records)) lf = logging.Formatter('<%(message)s>') f = TestBufferingFormatter(lf) self.assertEqual('[(2)(2)]', f.format(self.records)) class ExceptionTest(BaseTest): def test_formatting(self): r = self.root_logger h = RecordingHandler() r.addHandler(h) try: raise RuntimeError('deliberate mistake') except: logging.exception('failed', stack_info=True) r.removeHandler(h) h.close() r = h.records[0] self.assertTrue(r.exc_text.startswith('Traceback (most recent ' 'call last):\n')) self.assertTrue(r.exc_text.endswith('\nRuntimeError: ' 'deliberate mistake')) self.assertTrue(r.stack_info.startswith('Stack (most recent ' 'call last):\n')) self.assertTrue(r.stack_info.endswith('logging.exception(\'failed\', ' 'stack_info=True)')) class LastResortTest(BaseTest): def test_last_resort(self): # Test the last resort handler root = self.root_logger root.removeHandler(self.root_hdlr) old_lastresort = logging.lastResort old_raise_exceptions = logging.raiseExceptions try: with support.captured_stderr() as stderr: root.debug('This should not appear') self.assertEqual(stderr.getvalue(), '') root.warning('Final chance!') self.assertEqual(stderr.getvalue(), 'Final chance!\n') # No handlers and no last resort, so 'No handlers' message logging.lastResort = None with support.captured_stderr() as stderr: root.warning('Final chance!') msg = 'No handlers could be found for logger "root"\n' self.assertEqual(stderr.getvalue(), msg) # 'No handlers' message only printed once with support.captured_stderr() as stderr: root.warning('Final chance!') self.assertEqual(stderr.getvalue(), '') # If raiseExceptions is False, no message is printed root.manager.emittedNoHandlerWarning = False logging.raiseExceptions = False with support.captured_stderr() as stderr: root.warning('Final chance!') self.assertEqual(stderr.getvalue(), '') finally: root.addHandler(self.root_hdlr) logging.lastResort = old_lastresort logging.raiseExceptions = old_raise_exceptions class FakeHandler: def __init__(self, identifier, called): for method in ('acquire', 'flush', 'close', 'release'): setattr(self, method, self.record_call(identifier, method, called)) def record_call(self, identifier, method_name, called): def inner(): called.append('{} - {}'.format(identifier, method_name)) return inner class RecordingHandler(logging.NullHandler): def __init__(self, *args, **kwargs): super(RecordingHandler, self).__init__(*args, **kwargs) self.records = [] def handle(self, record): """Keep track of all the emitted records.""" self.records.append(record) class ShutdownTest(BaseTest): """Test suite for the shutdown method.""" def setUp(self): super(ShutdownTest, self).setUp() self.called = [] raise_exceptions = logging.raiseExceptions self.addCleanup(setattr, logging, 'raiseExceptions', raise_exceptions) def raise_error(self, error): def inner(): raise error() return inner def test_no_failure(self): # create some fake handlers handler0 = FakeHandler(0, self.called) handler1 = FakeHandler(1, self.called) handler2 = FakeHandler(2, self.called) # create live weakref to those handlers handlers = map(logging.weakref.ref, [handler0, handler1, handler2]) logging.shutdown(handlerList=list(handlers)) expected = ['2 - acquire', '2 - flush', '2 - close', '2 - release', '1 - acquire', '1 - flush', '1 - close', '1 - release', '0 - acquire', '0 - flush', '0 - close', '0 - release'] self.assertEqual(expected, self.called) def _test_with_failure_in_method(self, method, error): handler = FakeHandler(0, self.called) setattr(handler, method, self.raise_error(error)) handlers = [logging.weakref.ref(handler)] logging.shutdown(handlerList=list(handlers)) self.assertEqual('0 - release', self.called[-1]) def test_with_ioerror_in_acquire(self): self._test_with_failure_in_method('acquire', OSError) def test_with_ioerror_in_flush(self): self._test_with_failure_in_method('flush', OSError) def test_with_ioerror_in_close(self): self._test_with_failure_in_method('close', OSError) def test_with_valueerror_in_acquire(self): self._test_with_failure_in_method('acquire', ValueError) def test_with_valueerror_in_flush(self): self._test_with_failure_in_method('flush', ValueError) def test_with_valueerror_in_close(self): self._test_with_failure_in_method('close', ValueError) def test_with_other_error_in_acquire_without_raise(self): logging.raiseExceptions = False self._test_with_failure_in_method('acquire', IndexError) def test_with_other_error_in_flush_without_raise(self): logging.raiseExceptions = False self._test_with_failure_in_method('flush', IndexError) def test_with_other_error_in_close_without_raise(self): logging.raiseExceptions = False self._test_with_failure_in_method('close', IndexError) def test_with_other_error_in_acquire_with_raise(self): logging.raiseExceptions = True self.assertRaises(IndexError, self._test_with_failure_in_method, 'acquire', IndexError) def test_with_other_error_in_flush_with_raise(self): logging.raiseExceptions = True self.assertRaises(IndexError, self._test_with_failure_in_method, 'flush', IndexError) def test_with_other_error_in_close_with_raise(self): logging.raiseExceptions = True self.assertRaises(IndexError, self._test_with_failure_in_method, 'close', IndexError) class ModuleLevelMiscTest(BaseTest): """Test suite for some module level methods.""" def test_disable(self): old_disable = logging.root.manager.disable # confirm our assumptions are correct self.assertEqual(old_disable, 0) self.addCleanup(logging.disable, old_disable) logging.disable(83) self.assertEqual(logging.root.manager.disable, 83) self.assertRaises(ValueError, logging.disable, "doesnotexists") class _NotAnIntOrString: pass self.assertRaises(TypeError, logging.disable, _NotAnIntOrString()) logging.disable("WARN") # test the default value introduced in 3.7 # (Issue #28524) logging.disable() self.assertEqual(logging.root.manager.disable, logging.CRITICAL) def _test_log(self, method, level=None): called = [] support.patch(self, logging, 'basicConfig', lambda *a, **kw: called.append((a, kw))) recording = RecordingHandler() logging.root.addHandler(recording) log_method = getattr(logging, method) if level is not None: log_method(level, "test me: %r", recording) else: log_method("test me: %r", recording) self.assertEqual(len(recording.records), 1) record = recording.records[0] self.assertEqual(record.getMessage(), "test me: %r" % recording) expected_level = level if level is not None else getattr(logging, method.upper()) self.assertEqual(record.levelno, expected_level) # basicConfig was not called! self.assertEqual(called, []) def test_log(self): self._test_log('log', logging.ERROR) def test_debug(self): self._test_log('debug') def test_info(self): self._test_log('info') def test_warning(self): self._test_log('warning') def test_error(self): self._test_log('error') def test_critical(self): self._test_log('critical') def test_set_logger_class(self): self.assertRaises(TypeError, logging.setLoggerClass, object) class MyLogger(logging.Logger): pass logging.setLoggerClass(MyLogger) self.assertEqual(logging.getLoggerClass(), MyLogger) logging.setLoggerClass(logging.Logger) self.assertEqual(logging.getLoggerClass(), logging.Logger) def test_subclass_logger_cache(self): # bpo-37258 message = [] class MyLogger(logging.getLoggerClass()): def __init__(self, name='MyLogger', level=logging.NOTSET): super().__init__(name, level) message.append('initialized') logging.setLoggerClass(MyLogger) logger = logging.getLogger('just_some_logger') self.assertEqual(message, ['initialized']) stream = io.StringIO() h = logging.StreamHandler(stream) logger.addHandler(h) try: logger.setLevel(logging.DEBUG) logger.debug("hello") self.assertEqual(stream.getvalue().strip(), "hello") stream.truncate(0) stream.seek(0) logger.setLevel(logging.INFO) logger.debug("hello") self.assertEqual(stream.getvalue(), "") finally: logger.removeHandler(h) h.close() logging.setLoggerClass(logging.Logger) def test_logging_at_shutdown(self): # bpo-20037: Doing text I/O late at interpreter shutdown must not crash code = textwrap.dedent(""" import logging class A: def __del__(self): try: raise ValueError("some error") except Exception: logging.exception("exception in __del__") a = A() """) rc, out, err = assert_python_ok("-c", code) err = err.decode() self.assertIn("exception in __del__", err) self.assertIn("ValueError: some error", err) def test_logging_at_shutdown_open(self): # bpo-26789: FileHandler keeps a reference to the builtin open() # function to be able to open or reopen the file during Python # finalization. filename = os_helper.TESTFN self.addCleanup(os_helper.unlink, filename) code = textwrap.dedent(f""" import builtins import logging class A: def __del__(self): logging.error("log in __del__") # basicConfig() opens the file, but logging.shutdown() closes # it at Python exit. When A.__del__() is called, # FileHandler._open() must be called again to re-open the file. logging.basicConfig(filename={filename!r}, encoding="utf-8") a = A() # Simulate the Python finalization which removes the builtin # open() function. del builtins.open """) assert_python_ok("-c", code) with open(filename, encoding="utf-8") as fp: self.assertEqual(fp.read().rstrip(), "ERROR:root:log in __del__") def test_recursion_error(self): # Issue 36272 code = textwrap.dedent(""" import logging def rec(): logging.error("foo") rec() rec() """) rc, out, err = assert_python_failure("-c", code) err = err.decode() self.assertNotIn("Cannot recover from stack overflow.", err) self.assertEqual(rc, 1) def test_get_level_names_mapping(self): mapping = logging.getLevelNamesMapping() self.assertEqual(logging._nameToLevel, mapping) # value is equivalent self.assertIsNot(logging._nameToLevel, mapping) # but not the internal data new_mapping = logging.getLevelNamesMapping() # another call -> another copy self.assertIsNot(mapping, new_mapping) # verify not the same object as before self.assertEqual(mapping, new_mapping) # but equivalent in value class LogRecordTest(BaseTest): def test_str_rep(self): r = logging.makeLogRecord({}) s = str(r) self.assertTrue(s.startswith('')) def test_dict_arg(self): h = RecordingHandler() r = logging.getLogger() r.addHandler(h) d = {'less' : 'more' } logging.warning('less is %(less)s', d) self.assertIs(h.records[0].args, d) self.assertEqual(h.records[0].message, 'less is more') r.removeHandler(h) h.close() @staticmethod # pickled as target of child process in the following test def _extract_logrecord_process_name(key, logMultiprocessing, conn=None): prev_logMultiprocessing = logging.logMultiprocessing logging.logMultiprocessing = logMultiprocessing try: import multiprocessing as mp name = mp.current_process().name r1 = logging.makeLogRecord({'msg': f'msg1_{key}'}) del sys.modules['multiprocessing'] r2 = logging.makeLogRecord({'msg': f'msg2_{key}'}) results = {'processName' : name, 'r1.processName': r1.processName, 'r2.processName': r2.processName, } finally: logging.logMultiprocessing = prev_logMultiprocessing if conn: conn.send(results) else: return results def test_multiprocessing(self): multiprocessing_imported = 'multiprocessing' in sys.modules try: # logMultiprocessing is True by default self.assertEqual(logging.logMultiprocessing, True) LOG_MULTI_PROCESSING = True # When logMultiprocessing == True: # In the main process processName = 'MainProcess' r = logging.makeLogRecord({}) self.assertEqual(r.processName, 'MainProcess') results = self._extract_logrecord_process_name(1, LOG_MULTI_PROCESSING) self.assertEqual('MainProcess', results['processName']) self.assertEqual('MainProcess', results['r1.processName']) self.assertEqual('MainProcess', results['r2.processName']) # In other processes, processName is correct when multiprocessing in imported, # but it is (incorrectly) defaulted to 'MainProcess' otherwise (bpo-38762). import multiprocessing parent_conn, child_conn = multiprocessing.Pipe() p = multiprocessing.Process( target=self._extract_logrecord_process_name, args=(2, LOG_MULTI_PROCESSING, child_conn,) ) p.start() results = parent_conn.recv() self.assertNotEqual('MainProcess', results['processName']) self.assertEqual(results['processName'], results['r1.processName']) self.assertEqual('MainProcess', results['r2.processName']) p.join() finally: if multiprocessing_imported: import multiprocessing def test_optional(self): r = logging.makeLogRecord({}) NOT_NONE = self.assertIsNotNone NOT_NONE(r.thread) NOT_NONE(r.threadName) NOT_NONE(r.process) NOT_NONE(r.processName) log_threads = logging.logThreads log_processes = logging.logProcesses log_multiprocessing = logging.logMultiprocessing try: logging.logThreads = False logging.logProcesses = False logging.logMultiprocessing = False r = logging.makeLogRecord({}) NONE = self.assertIsNone NONE(r.thread) NONE(r.threadName) NONE(r.process) NONE(r.processName) finally: logging.logThreads = log_threads logging.logProcesses = log_processes logging.logMultiprocessing = log_multiprocessing class BasicConfigTest(unittest.TestCase): """Test suite for logging.basicConfig.""" def setUp(self): super(BasicConfigTest, self).setUp() self.handlers = logging.root.handlers self.saved_handlers = logging._handlers.copy() self.saved_handler_list = logging._handlerList[:] self.original_logging_level = logging.root.level self.addCleanup(self.cleanup) logging.root.handlers = [] def tearDown(self): for h in logging.root.handlers[:]: logging.root.removeHandler(h) h.close() super(BasicConfigTest, self).tearDown() def cleanup(self): setattr(logging.root, 'handlers', self.handlers) logging._handlers.clear() logging._handlers.update(self.saved_handlers) logging._handlerList[:] = self.saved_handler_list logging.root.setLevel(self.original_logging_level) def test_no_kwargs(self): logging.basicConfig() # handler defaults to a StreamHandler to sys.stderr self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.StreamHandler) self.assertEqual(handler.stream, sys.stderr) formatter = handler.formatter # format defaults to logging.BASIC_FORMAT self.assertEqual(formatter._style._fmt, logging.BASIC_FORMAT) # datefmt defaults to None self.assertIsNone(formatter.datefmt) # style defaults to % self.assertIsInstance(formatter._style, logging.PercentStyle) # level is not explicitly set self.assertEqual(logging.root.level, self.original_logging_level) def test_strformatstyle(self): with support.captured_stdout() as output: logging.basicConfig(stream=sys.stdout, style="{") logging.error("Log an error") sys.stdout.seek(0) self.assertEqual(output.getvalue().strip(), "ERROR:root:Log an error") def test_stringtemplatestyle(self): with support.captured_stdout() as output: logging.basicConfig(stream=sys.stdout, style="$") logging.error("Log an error") sys.stdout.seek(0) self.assertEqual(output.getvalue().strip(), "ERROR:root:Log an error") def test_filename(self): def cleanup(h1, h2, fn): h1.close() h2.close() os.remove(fn) logging.basicConfig(filename='test.log', encoding='utf-8') self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.FileHandler) expected = logging.FileHandler('test.log', 'a', encoding='utf-8') self.assertEqual(handler.stream.mode, expected.stream.mode) self.assertEqual(handler.stream.name, expected.stream.name) self.addCleanup(cleanup, handler, expected, 'test.log') def test_filemode(self): def cleanup(h1, h2, fn): h1.close() h2.close() os.remove(fn) logging.basicConfig(filename='test.log', filemode='wb') handler = logging.root.handlers[0] expected = logging.FileHandler('test.log', 'wb') self.assertEqual(handler.stream.mode, expected.stream.mode) self.addCleanup(cleanup, handler, expected, 'test.log') def test_stream(self): stream = io.StringIO() self.addCleanup(stream.close) logging.basicConfig(stream=stream) self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.StreamHandler) self.assertEqual(handler.stream, stream) def test_format(self): logging.basicConfig(format='%(asctime)s - %(message)s') formatter = logging.root.handlers[0].formatter self.assertEqual(formatter._style._fmt, '%(asctime)s - %(message)s') def test_datefmt(self): logging.basicConfig(datefmt='bar') formatter = logging.root.handlers[0].formatter self.assertEqual(formatter.datefmt, 'bar') def test_style(self): logging.basicConfig(style='$') formatter = logging.root.handlers[0].formatter self.assertIsInstance(formatter._style, logging.StringTemplateStyle) def test_level(self): old_level = logging.root.level self.addCleanup(logging.root.setLevel, old_level) logging.basicConfig(level=57) self.assertEqual(logging.root.level, 57) # Test that second call has no effect logging.basicConfig(level=58) self.assertEqual(logging.root.level, 57) def test_incompatible(self): assertRaises = self.assertRaises handlers = [logging.StreamHandler()] stream = sys.stderr assertRaises(ValueError, logging.basicConfig, filename='test.log', stream=stream) assertRaises(ValueError, logging.basicConfig, filename='test.log', handlers=handlers) assertRaises(ValueError, logging.basicConfig, stream=stream, handlers=handlers) # Issue 23207: test for invalid kwargs assertRaises(ValueError, logging.basicConfig, loglevel=logging.INFO) # Should pop both filename and filemode even if filename is None logging.basicConfig(filename=None, filemode='a') def test_handlers(self): handlers = [ logging.StreamHandler(), logging.StreamHandler(sys.stdout), logging.StreamHandler(), ] f = logging.Formatter() handlers[2].setFormatter(f) logging.basicConfig(handlers=handlers) self.assertIs(handlers[0], logging.root.handlers[0]) self.assertIs(handlers[1], logging.root.handlers[1]) self.assertIs(handlers[2], logging.root.handlers[2]) self.assertIsNotNone(handlers[0].formatter) self.assertIsNotNone(handlers[1].formatter) self.assertIs(handlers[2].formatter, f) self.assertIs(handlers[0].formatter, handlers[1].formatter) def test_force(self): old_string_io = io.StringIO() new_string_io = io.StringIO() old_handlers = [logging.StreamHandler(old_string_io)] new_handlers = [logging.StreamHandler(new_string_io)] logging.basicConfig(level=logging.WARNING, handlers=old_handlers) logging.warning('warn') logging.info('info') logging.debug('debug') self.assertEqual(len(logging.root.handlers), 1) logging.basicConfig(level=logging.INFO, handlers=new_handlers, force=True) logging.warning('warn') logging.info('info') logging.debug('debug') self.assertEqual(len(logging.root.handlers), 1) self.assertEqual(old_string_io.getvalue().strip(), 'WARNING:root:warn') self.assertEqual(new_string_io.getvalue().strip(), 'WARNING:root:warn\nINFO:root:info') def test_encoding(self): try: encoding = 'utf-8' logging.basicConfig(filename='test.log', encoding=encoding, errors='strict', format='%(message)s', level=logging.DEBUG) self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.FileHandler) self.assertEqual(handler.encoding, encoding) logging.debug('The Øresund Bridge joins Copenhagen to Malmö') finally: handler.close() with open('test.log', encoding='utf-8') as f: data = f.read().strip() os.remove('test.log') self.assertEqual(data, 'The Øresund Bridge joins Copenhagen to Malmö') def test_encoding_errors(self): try: encoding = 'ascii' logging.basicConfig(filename='test.log', encoding=encoding, errors='ignore', format='%(message)s', level=logging.DEBUG) self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.FileHandler) self.assertEqual(handler.encoding, encoding) logging.debug('The Øresund Bridge joins Copenhagen to Malmö') finally: handler.close() with open('test.log', encoding='utf-8') as f: data = f.read().strip() os.remove('test.log') self.assertEqual(data, 'The resund Bridge joins Copenhagen to Malm') def test_encoding_errors_default(self): try: encoding = 'ascii' logging.basicConfig(filename='test.log', encoding=encoding, format='%(message)s', level=logging.DEBUG) self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.FileHandler) self.assertEqual(handler.encoding, encoding) self.assertEqual(handler.errors, 'backslashreplace') logging.debug('😂: ☃️: The Øresund Bridge joins Copenhagen to Malmö') finally: handler.close() with open('test.log', encoding='utf-8') as f: data = f.read().strip() os.remove('test.log') self.assertEqual(data, r'\U0001f602: \u2603\ufe0f: The \xd8resund ' r'Bridge joins Copenhagen to Malm\xf6') def test_encoding_errors_none(self): # Specifying None should behave as 'strict' try: encoding = 'ascii' logging.basicConfig(filename='test.log', encoding=encoding, errors=None, format='%(message)s', level=logging.DEBUG) self.assertEqual(len(logging.root.handlers), 1) handler = logging.root.handlers[0] self.assertIsInstance(handler, logging.FileHandler) self.assertEqual(handler.encoding, encoding) self.assertIsNone(handler.errors) message = [] def dummy_handle_error(record): _, v, _ = sys.exc_info() message.append(str(v)) handler.handleError = dummy_handle_error logging.debug('The Øresund Bridge joins Copenhagen to Malmö') self.assertTrue(message) self.assertIn("'ascii' codec can't encode " "character '\\xd8' in position 4:", message[0]) finally: handler.close() with open('test.log', encoding='utf-8') as f: data = f.read().strip() os.remove('test.log') # didn't write anything due to the encoding error self.assertEqual(data, r'') def _test_log(self, method, level=None): # logging.root has no handlers so basicConfig should be called called = [] old_basic_config = logging.basicConfig def my_basic_config(*a, **kw): old_basic_config() old_level = logging.root.level logging.root.setLevel(100) # avoid having messages in stderr self.addCleanup(logging.root.setLevel, old_level) called.append((a, kw)) support.patch(self, logging, 'basicConfig', my_basic_config) log_method = getattr(logging, method) if level is not None: log_method(level, "test me") else: log_method("test me") # basicConfig was called with no arguments self.assertEqual(called, [((), {})]) def test_log(self): self._test_log('log', logging.WARNING) def test_debug(self): self._test_log('debug') def test_info(self): self._test_log('info') def test_warning(self): self._test_log('warning') def test_error(self): self._test_log('error') def test_critical(self): self._test_log('critical') class LoggerAdapterTest(unittest.TestCase): def setUp(self): super(LoggerAdapterTest, self).setUp() old_handler_list = logging._handlerList[:] self.recording = RecordingHandler() self.logger = logging.root self.logger.addHandler(self.recording) self.addCleanup(self.logger.removeHandler, self.recording) self.addCleanup(self.recording.close) def cleanup(): logging._handlerList[:] = old_handler_list self.addCleanup(cleanup) self.addCleanup(logging.shutdown) self.adapter = logging.LoggerAdapter(logger=self.logger, extra=None) def test_exception(self): msg = 'testing exception: %r' exc = None try: 1 / 0 except ZeroDivisionError as e: exc = e self.adapter.exception(msg, self.recording) self.assertEqual(len(self.recording.records), 1) record = self.recording.records[0] self.assertEqual(record.levelno, logging.ERROR) self.assertEqual(record.msg, msg) self.assertEqual(record.args, (self.recording,)) self.assertEqual(record.exc_info, (exc.__class__, exc, exc.__traceback__)) def test_exception_excinfo(self): try: 1 / 0 except ZeroDivisionError as e: exc = e self.adapter.exception('exc_info test', exc_info=exc) self.assertEqual(len(self.recording.records), 1) record = self.recording.records[0] self.assertEqual(record.exc_info, (exc.__class__, exc, exc.__traceback__)) def test_critical(self): msg = 'critical test! %r' self.adapter.critical(msg, self.recording) self.assertEqual(len(self.recording.records), 1) record = self.recording.records[0] self.assertEqual(record.levelno, logging.CRITICAL) self.assertEqual(record.msg, msg) self.assertEqual(record.args, (self.recording,)) def test_is_enabled_for(self): old_disable = self.adapter.logger.manager.disable self.adapter.logger.manager.disable = 33 self.addCleanup(setattr, self.adapter.logger.manager, 'disable', old_disable) self.assertFalse(self.adapter.isEnabledFor(32)) def test_has_handlers(self): self.assertTrue(self.adapter.hasHandlers()) for handler in self.logger.handlers: self.logger.removeHandler(handler) self.assertFalse(self.logger.hasHandlers()) self.assertFalse(self.adapter.hasHandlers()) def test_nested(self): class Adapter(logging.LoggerAdapter): prefix = 'Adapter' def process(self, msg, kwargs): return f"{self.prefix} {msg}", kwargs msg = 'Adapters can be nested, yo.' adapter = Adapter(logger=self.logger, extra=None) adapter_adapter = Adapter(logger=adapter, extra=None) adapter_adapter.prefix = 'AdapterAdapter' self.assertEqual(repr(adapter), repr(adapter_adapter)) adapter_adapter.log(logging.CRITICAL, msg, self.recording) self.assertEqual(len(self.recording.records), 1) record = self.recording.records[0] self.assertEqual(record.levelno, logging.CRITICAL) self.assertEqual(record.msg, f"Adapter AdapterAdapter {msg}") self.assertEqual(record.args, (self.recording,)) orig_manager = adapter_adapter.manager self.assertIs(adapter.manager, orig_manager) self.assertIs(self.logger.manager, orig_manager) temp_manager = object() try: adapter_adapter.manager = temp_manager self.assertIs(adapter_adapter.manager, temp_manager) self.assertIs(adapter.manager, temp_manager) self.assertIs(self.logger.manager, temp_manager) finally: adapter_adapter.manager = orig_manager self.assertIs(adapter_adapter.manager, orig_manager) self.assertIs(adapter.manager, orig_manager) self.assertIs(self.logger.manager, orig_manager) class LoggerTest(BaseTest, AssertErrorMessage): def setUp(self): super(LoggerTest, self).setUp() self.recording = RecordingHandler() self.logger = logging.Logger(name='blah') self.logger.addHandler(self.recording) self.addCleanup(self.logger.removeHandler, self.recording) self.addCleanup(self.recording.close) self.addCleanup(logging.shutdown) def test_set_invalid_level(self): self.assert_error_message( TypeError, 'Level not an integer or a valid string: None', self.logger.setLevel, None) self.assert_error_message( TypeError, 'Level not an integer or a valid string: (0, 0)', self.logger.setLevel, (0, 0)) def test_exception(self): msg = 'testing exception: %r' exc = None try: 1 / 0 except ZeroDivisionError as e: exc = e self.logger.exception(msg, self.recording) self.assertEqual(len(self.recording.records), 1) record = self.recording.records[0] self.assertEqual(record.levelno, logging.ERROR) self.assertEqual(record.msg, msg) self.assertEqual(record.args, (self.recording,)) self.assertEqual(record.exc_info, (exc.__class__, exc, exc.__traceback__)) def test_log_invalid_level_with_raise(self): with support.swap_attr(logging, 'raiseExceptions', True): self.assertRaises(TypeError, self.logger.log, '10', 'test message') def test_log_invalid_level_no_raise(self): with support.swap_attr(logging, 'raiseExceptions', False): self.logger.log('10', 'test message') # no exception happens def test_find_caller_with_stack_info(self): called = [] support.patch(self, logging.traceback, 'print_stack', lambda f, file: called.append(file.getvalue())) self.logger.findCaller(stack_info=True) self.assertEqual(len(called), 1) self.assertEqual('Stack (most recent call last):\n', called[0]) def test_find_caller_with_stacklevel(self): the_level = 1 def innermost(): self.logger.warning('test', stacklevel=the_level) def inner(): innermost() def outer(): inner() records = self.recording.records outer() self.assertEqual(records[-1].funcName, 'innermost') lineno = records[-1].lineno the_level += 1 outer() self.assertEqual(records[-1].funcName, 'inner') self.assertGreater(records[-1].lineno, lineno) lineno = records[-1].lineno the_level += 1 outer() self.assertEqual(records[-1].funcName, 'outer') self.assertGreater(records[-1].lineno, lineno) lineno = records[-1].lineno the_level += 1 outer() self.assertEqual(records[-1].funcName, 'test_find_caller_with_stacklevel') self.assertGreater(records[-1].lineno, lineno) def test_make_record_with_extra_overwrite(self): name = 'my record' level = 13 fn = lno = msg = args = exc_info = func = sinfo = None rv = logging._logRecordFactory(name, level, fn, lno, msg, args, exc_info, func, sinfo) for key in ('message', 'asctime') + tuple(rv.__dict__.keys()): extra = {key: 'some value'} self.assertRaises(KeyError, self.logger.makeRecord, name, level, fn, lno, msg, args, exc_info, extra=extra, sinfo=sinfo) def test_make_record_with_extra_no_overwrite(self): name = 'my record' level = 13 fn = lno = msg = args = exc_info = func = sinfo = None extra = {'valid_key': 'some value'} result = self.logger.makeRecord(name, level, fn, lno, msg, args, exc_info, extra=extra, sinfo=sinfo) self.assertIn('valid_key', result.__dict__) def test_has_handlers(self): self.assertTrue(self.logger.hasHandlers()) for handler in self.logger.handlers: self.logger.removeHandler(handler) self.assertFalse(self.logger.hasHandlers()) def test_has_handlers_no_propagate(self): child_logger = logging.getLogger('blah.child') child_logger.propagate = False self.assertFalse(child_logger.hasHandlers()) def test_is_enabled_for(self): old_disable = self.logger.manager.disable self.logger.manager.disable = 23 self.addCleanup(setattr, self.logger.manager, 'disable', old_disable) self.assertFalse(self.logger.isEnabledFor(22)) def test_is_enabled_for_disabled_logger(self): old_disabled = self.logger.disabled old_disable = self.logger.manager.disable self.logger.disabled = True self.logger.manager.disable = 21 self.addCleanup(setattr, self.logger, 'disabled', old_disabled) self.addCleanup(setattr, self.logger.manager, 'disable', old_disable) self.assertFalse(self.logger.isEnabledFor(22)) def test_root_logger_aliases(self): root = logging.getLogger() self.assertIs(root, logging.root) self.assertIs(root, logging.getLogger(None)) self.assertIs(root, logging.getLogger('')) self.assertIs(root, logging.getLogger('root')) self.assertIs(root, logging.getLogger('foo').root) self.assertIs(root, logging.getLogger('foo.bar').root) self.assertIs(root, logging.getLogger('foo').parent) self.assertIsNot(root, logging.getLogger('\0')) self.assertIsNot(root, logging.getLogger('foo.bar').parent) def test_invalid_names(self): self.assertRaises(TypeError, logging.getLogger, any) self.assertRaises(TypeError, logging.getLogger, b'foo') def test_pickling(self): for proto in range(pickle.HIGHEST_PROTOCOL + 1): for name in ('', 'root', 'foo', 'foo.bar', 'baz.bar'): logger = logging.getLogger(name) s = pickle.dumps(logger, proto) unpickled = pickle.loads(s) self.assertIs(unpickled, logger) def test_caching(self): root = self.root_logger logger1 = logging.getLogger("abc") logger2 = logging.getLogger("abc.def") # Set root logger level and ensure cache is empty root.setLevel(logging.ERROR) self.assertEqual(logger2.getEffectiveLevel(), logging.ERROR) self.assertEqual(logger2._cache, {}) # Ensure cache is populated and calls are consistent self.assertTrue(logger2.isEnabledFor(logging.ERROR)) self.assertFalse(logger2.isEnabledFor(logging.DEBUG)) self.assertEqual(logger2._cache, {logging.ERROR: True, logging.DEBUG: False}) self.assertEqual(root._cache, {}) self.assertTrue(logger2.isEnabledFor(logging.ERROR)) # Ensure root cache gets populated self.assertEqual(root._cache, {}) self.assertTrue(root.isEnabledFor(logging.ERROR)) self.assertEqual(root._cache, {logging.ERROR: True}) # Set parent logger level and ensure caches are emptied logger1.setLevel(logging.CRITICAL) self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) self.assertEqual(logger2._cache, {}) # Ensure logger2 uses parent logger's effective level self.assertFalse(logger2.isEnabledFor(logging.ERROR)) # Set level to NOTSET and ensure caches are empty logger2.setLevel(logging.NOTSET) self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) self.assertEqual(logger2._cache, {}) self.assertEqual(logger1._cache, {}) self.assertEqual(root._cache, {}) # Verify logger2 follows parent and not root self.assertFalse(logger2.isEnabledFor(logging.ERROR)) self.assertTrue(logger2.isEnabledFor(logging.CRITICAL)) self.assertFalse(logger1.isEnabledFor(logging.ERROR)) self.assertTrue(logger1.isEnabledFor(logging.CRITICAL)) self.assertTrue(root.isEnabledFor(logging.ERROR)) # Disable logging in manager and ensure caches are clear logging.disable() self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) self.assertEqual(logger2._cache, {}) self.assertEqual(logger1._cache, {}) self.assertEqual(root._cache, {}) # Ensure no loggers are enabled self.assertFalse(logger1.isEnabledFor(logging.CRITICAL)) self.assertFalse(logger2.isEnabledFor(logging.CRITICAL)) self.assertFalse(root.isEnabledFor(logging.CRITICAL)) class BaseFileTest(BaseTest): "Base class for handler tests that write log files" def setUp(self): BaseTest.setUp(self) fd, self.fn = tempfile.mkstemp(".log", "test_logging-2-") os.close(fd) self.rmfiles = [] def tearDown(self): for fn in self.rmfiles: os.unlink(fn) if os.path.exists(self.fn): os.unlink(self.fn) BaseTest.tearDown(self) def assertLogFile(self, filename): "Assert a log file is there and register it for deletion" self.assertTrue(os.path.exists(filename), msg="Log file %r does not exist" % filename) self.rmfiles.append(filename) class FileHandlerTest(BaseFileTest): def test_delay(self): os.unlink(self.fn) fh = logging.FileHandler(self.fn, encoding='utf-8', delay=True) self.assertIsNone(fh.stream) self.assertFalse(os.path.exists(self.fn)) fh.handle(logging.makeLogRecord({})) self.assertIsNotNone(fh.stream) self.assertTrue(os.path.exists(self.fn)) fh.close() class RotatingFileHandlerTest(BaseFileTest): def next_rec(self): return logging.LogRecord('n', logging.DEBUG, 'p', 1, self.next_message(), None, None, None) def test_should_not_rollover(self): # If maxbytes is zero rollover never occurs rh = logging.handlers.RotatingFileHandler( self.fn, encoding="utf-8", maxBytes=0) self.assertFalse(rh.shouldRollover(None)) rh.close() def test_should_rollover(self): rh = logging.handlers.RotatingFileHandler(self.fn, encoding="utf-8", maxBytes=1) self.assertTrue(rh.shouldRollover(self.next_rec())) rh.close() def test_file_created(self): # checks that the file is created and assumes it was created # by us rh = logging.handlers.RotatingFileHandler(self.fn, encoding="utf-8") rh.emit(self.next_rec()) self.assertLogFile(self.fn) rh.close() def test_rollover_filenames(self): def namer(name): return name + ".test" rh = logging.handlers.RotatingFileHandler( self.fn, encoding="utf-8", backupCount=2, maxBytes=1) rh.namer = namer rh.emit(self.next_rec()) self.assertLogFile(self.fn) rh.emit(self.next_rec()) self.assertLogFile(namer(self.fn + ".1")) rh.emit(self.next_rec()) self.assertLogFile(namer(self.fn + ".2")) self.assertFalse(os.path.exists(namer(self.fn + ".3"))) rh.close() def test_namer_rotator_inheritance(self): class HandlerWithNamerAndRotator(logging.handlers.RotatingFileHandler): def namer(self, name): return name + ".test" def rotator(self, source, dest): if os.path.exists(source): os.replace(source, dest + ".rotated") rh = HandlerWithNamerAndRotator( self.fn, encoding="utf-8", backupCount=2, maxBytes=1) self.assertEqual(rh.namer(self.fn), self.fn + ".test") rh.emit(self.next_rec()) self.assertLogFile(self.fn) rh.emit(self.next_rec()) self.assertLogFile(rh.namer(self.fn + ".1") + ".rotated") self.assertFalse(os.path.exists(rh.namer(self.fn + ".1"))) rh.close() @support.requires_zlib() def test_rotator(self): def namer(name): return name + ".gz" def rotator(source, dest): with open(source, "rb") as sf: data = sf.read() compressed = zlib.compress(data, 9) with open(dest, "wb") as df: df.write(compressed) os.remove(source) rh = logging.handlers.RotatingFileHandler( self.fn, encoding="utf-8", backupCount=2, maxBytes=1) rh.rotator = rotator rh.namer = namer m1 = self.next_rec() rh.emit(m1) self.assertLogFile(self.fn) m2 = self.next_rec() rh.emit(m2) fn = namer(self.fn + ".1") self.assertLogFile(fn) newline = os.linesep with open(fn, "rb") as f: compressed = f.read() data = zlib.decompress(compressed) self.assertEqual(data.decode("ascii"), m1.msg + newline) rh.emit(self.next_rec()) fn = namer(self.fn + ".2") self.assertLogFile(fn) with open(fn, "rb") as f: compressed = f.read() data = zlib.decompress(compressed) self.assertEqual(data.decode("ascii"), m1.msg + newline) rh.emit(self.next_rec()) fn = namer(self.fn + ".2") with open(fn, "rb") as f: compressed = f.read() data = zlib.decompress(compressed) self.assertEqual(data.decode("ascii"), m2.msg + newline) self.assertFalse(os.path.exists(namer(self.fn + ".3"))) rh.close() class TimedRotatingFileHandlerTest(BaseFileTest): # other test methods added below def test_rollover(self): fh = logging.handlers.TimedRotatingFileHandler( self.fn, 'S', encoding="utf-8", backupCount=1) fmt = logging.Formatter('%(asctime)s %(message)s') fh.setFormatter(fmt) r1 = logging.makeLogRecord({'msg': 'testing - initial'}) fh.emit(r1) self.assertLogFile(self.fn) time.sleep(1.1) # a little over a second ... r2 = logging.makeLogRecord({'msg': 'testing - after delay'}) fh.emit(r2) fh.close() # At this point, we should have a recent rotated file which we # can test for the existence of. However, in practice, on some # machines which run really slowly, we don't know how far back # in time to go to look for the log file. So, we go back a fair # bit, and stop as soon as we see a rotated file. In theory this # could of course still fail, but the chances are lower. found = False now = datetime.datetime.now() GO_BACK = 5 * 60 # seconds for secs in range(GO_BACK): prev = now - datetime.timedelta(seconds=secs) fn = self.fn + prev.strftime(".%Y-%m-%d_%H-%M-%S") found = os.path.exists(fn) if found: self.rmfiles.append(fn) break msg = 'No rotated files found, went back %d seconds' % GO_BACK if not found: # print additional diagnostics dn, fn = os.path.split(self.fn) files = [f for f in os.listdir(dn) if f.startswith(fn)] print('Test time: %s' % now.strftime("%Y-%m-%d %H-%M-%S"), file=sys.stderr) print('The only matching files are: %s' % files, file=sys.stderr) for f in files: print('Contents of %s:' % f) path = os.path.join(dn, f) with open(path, 'r') as tf: print(tf.read()) self.assertTrue(found, msg=msg) def test_invalid(self): assertRaises = self.assertRaises assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, self.fn, 'X', encoding="utf-8", delay=True) assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, self.fn, 'W', encoding="utf-8", delay=True) assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, self.fn, 'W7', encoding="utf-8", delay=True) def test_compute_rollover_daily_attime(self): currentTime = 0 atTime = datetime.time(12, 0, 0) rh = logging.handlers.TimedRotatingFileHandler( self.fn, encoding="utf-8", when='MIDNIGHT', interval=1, backupCount=0, utc=True, atTime=atTime) try: actual = rh.computeRollover(currentTime) self.assertEqual(actual, currentTime + 12 * 60 * 60) actual = rh.computeRollover(currentTime + 13 * 60 * 60) self.assertEqual(actual, currentTime + 36 * 60 * 60) finally: rh.close() #@unittest.skipIf(True, 'Temporarily skipped while failures investigated.') def test_compute_rollover_weekly_attime(self): currentTime = int(time.time()) today = currentTime - currentTime % 86400 atTime = datetime.time(12, 0, 0) wday = time.gmtime(today).tm_wday for day in range(7): rh = logging.handlers.TimedRotatingFileHandler( self.fn, encoding="utf-8", when='W%d' % day, interval=1, backupCount=0, utc=True, atTime=atTime) try: if wday > day: # The rollover day has already passed this week, so we # go over into next week expected = (7 - wday + day) else: expected = (day - wday) # At this point expected is in days from now, convert to seconds expected *= 24 * 60 * 60 # Add in the rollover time expected += 12 * 60 * 60 # Add in adjustment for today expected += today actual = rh.computeRollover(today) if actual != expected: print('failed in timezone: %d' % time.timezone) print('local vars: %s' % locals()) self.assertEqual(actual, expected) if day == wday: # goes into following week expected += 7 * 24 * 60 * 60 actual = rh.computeRollover(today + 13 * 60 * 60) if actual != expected: print('failed in timezone: %d' % time.timezone) print('local vars: %s' % locals()) self.assertEqual(actual, expected) finally: rh.close() def secs(**kw): return datetime.timedelta(**kw) // datetime.timedelta(seconds=1) for when, exp in (('S', 1), ('M', 60), ('H', 60 * 60), ('D', 60 * 60 * 24), ('MIDNIGHT', 60 * 60 * 24), # current time (epoch start) is a Thursday, W0 means Monday ('W0', secs(days=4, hours=24)), ): def test_compute_rollover(self, when=when, exp=exp): rh = logging.handlers.TimedRotatingFileHandler( self.fn, encoding="utf-8", when=when, interval=1, backupCount=0, utc=True) currentTime = 0.0 actual = rh.computeRollover(currentTime) if exp != actual: # Failures occur on some systems for MIDNIGHT and W0. # Print detailed calculation for MIDNIGHT so we can try to see # what's going on if when == 'MIDNIGHT': try: if rh.utc: t = time.gmtime(currentTime) else: t = time.localtime(currentTime) currentHour = t[3] currentMinute = t[4] currentSecond = t[5] # r is the number of seconds left between now and midnight r = logging.handlers._MIDNIGHT - ((currentHour * 60 + currentMinute) * 60 + currentSecond) result = currentTime + r print('t: %s (%s)' % (t, rh.utc), file=sys.stderr) print('currentHour: %s' % currentHour, file=sys.stderr) print('currentMinute: %s' % currentMinute, file=sys.stderr) print('currentSecond: %s' % currentSecond, file=sys.stderr) print('r: %s' % r, file=sys.stderr) print('result: %s' % result, file=sys.stderr) except Exception: print('exception in diagnostic code: %s' % sys.exc_info()[1], file=sys.stderr) self.assertEqual(exp, actual) rh.close() setattr(TimedRotatingFileHandlerTest, "test_compute_rollover_%s" % when, test_compute_rollover) @unittest.skipUnless(win32evtlog, 'win32evtlog/win32evtlogutil/pywintypes required for this test.') class NTEventLogHandlerTest(BaseTest): def test_basic(self): logtype = 'Application' elh = win32evtlog.OpenEventLog(None, logtype) num_recs = win32evtlog.GetNumberOfEventLogRecords(elh) try: h = logging.handlers.NTEventLogHandler('test_logging') except pywintypes.error as e: if e.winerror == 5: # access denied raise unittest.SkipTest('Insufficient privileges to run test') raise r = logging.makeLogRecord({'msg': 'Test Log Message'}) h.handle(r) h.close() # Now see if the event is recorded self.assertLess(num_recs, win32evtlog.GetNumberOfEventLogRecords(elh)) flags = win32evtlog.EVENTLOG_BACKWARDS_READ | \ win32evtlog.EVENTLOG_SEQUENTIAL_READ found = False GO_BACK = 100 events = win32evtlog.ReadEventLog(elh, flags, GO_BACK) for e in events: if e.SourceName != 'test_logging': continue msg = win32evtlogutil.SafeFormatMessage(e, logtype) if msg != 'Test Log Message\r\n': continue found = True break msg = 'Record not found in event log, went back %d records' % GO_BACK self.assertTrue(found, msg=msg) class MiscTestCase(unittest.TestCase): def test__all__(self): not_exported = { 'logThreads', 'logMultiprocessing', 'logProcesses', 'currentframe', 'PercentStyle', 'StrFormatStyle', 'StringTemplateStyle', 'Filterer', 'PlaceHolder', 'Manager', 'RootLogger', 'root', 'threading'} support.check__all__(self, logging, not_exported=not_exported) # Set the locale to the platform-dependent default. I have no idea # why the test does this, but in any case we save the current locale # first and restore it at the end. @support.run_with_locale('LC_ALL', '') def test_main(): tests = [ BuiltinLevelsTest, BasicFilterTest, CustomLevelsAndFiltersTest, HandlerTest, MemoryHandlerTest, ConfigFileTest, SocketHandlerTest, DatagramHandlerTest, MemoryTest, EncodingTest, WarningsTest, ConfigDictTest, ManagerTest, FormatterTest, BufferingFormatterTest, StreamHandlerTest, LogRecordFactoryTest, ChildLoggerTest, QueueHandlerTest, ShutdownTest, ModuleLevelMiscTest, BasicConfigTest, LoggerAdapterTest, LoggerTest, SMTPHandlerTest, FileHandlerTest, RotatingFileHandlerTest, LastResortTest, LogRecordTest, ExceptionTest, SysLogHandlerTest, IPv6SysLogHandlerTest, HTTPHandlerTest, NTEventLogHandlerTest, TimedRotatingFileHandlerTest, UnixSocketHandlerTest, UnixDatagramHandlerTest, UnixSysLogHandlerTest, MiscTestCase ] if hasattr(logging.handlers, 'QueueListener'): tests.append(QueueListenerTest) support.run_unittest(*tests) if __name__ == "__main__": test_main()