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492 lines
16 KiB
Python
492 lines
16 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2001-2002 by Vinay Sajip. All Rights Reserved.
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose and without fee is hereby granted,
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# provided that the above copyright notice appear in all copies and that
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# both that copyright notice and this permission notice appear in
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# supporting documentation, and that the name of Vinay Sajip
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# not be used in advertising or publicity pertaining to distribution
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# of the software without specific, written prior permission.
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# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# This file is part of the Python logging distribution. See
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# http://www.red-dove.com/python_logging.html
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#
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"""Test harness for the logging module. Run all tests.
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Copyright (C) 2001-2002 Vinay Sajip. All Rights Reserved.
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"""
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import select
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import os, sys, string, struct, types, cPickle, cStringIO
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import socket, threading, time
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import logging, logging.handlers, logging.config
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BANNER = "-- %-10s %-6s ---------------------------------------------------\n"
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FINISH_UP = "Finish up, it's closing time. Messages should bear numbers 0 through 24."
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#----------------------------------------------------------------------------
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# Log receiver
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#----------------------------------------------------------------------------
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TIMEOUT = 10
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from SocketServer import ThreadingTCPServer, StreamRequestHandler
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class LogRecordStreamHandler(StreamRequestHandler):
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"""
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Handler for a streaming logging request. It basically logs the record
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using whatever logging policy is configured locally.
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"""
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def handle(self):
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"""
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Handle multiple requests - each expected to be a 4-byte length,
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followed by the LogRecord in pickle format. Logs the record
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according to whatever policy is configured locally.
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"""
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while 1:
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try:
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chunk = self.connection.recv(4)
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if len(chunk) < 4:
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break
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slen = struct.unpack(">L", chunk)[0]
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chunk = self.connection.recv(slen)
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while len(chunk) < slen:
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chunk = chunk + self.connection.recv(slen - len(chunk))
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obj = self.unPickle(chunk)
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record = logging.makeLogRecord(obj)
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self.handleLogRecord(record)
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except:
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raise
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def unPickle(self, data):
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return cPickle.loads(data)
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def handleLogRecord(self, record):
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logname = "logrecv.tcp." + record.name
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#If the end-of-messages sentinel is seen, tell the server to terminate
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if record.msg == FINISH_UP:
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self.server.abort = 1
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record.msg = record.msg + " (via " + logname + ")"
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logger = logging.getLogger(logname)
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logger.handle(record)
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# The server sets socketDataProcessed when it's done.
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socketDataProcessed = threading.Event()
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class LogRecordSocketReceiver(ThreadingTCPServer):
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"""
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A simple-minded TCP socket-based logging receiver suitable for test
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purposes.
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"""
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allow_reuse_address = 1
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def __init__(self, host='localhost',
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port=logging.handlers.DEFAULT_TCP_LOGGING_PORT,
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handler=LogRecordStreamHandler):
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ThreadingTCPServer.__init__(self, (host, port), handler)
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self.abort = 0
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self.timeout = 1
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def serve_until_stopped(self):
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abort = 0
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while not abort:
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rd, wr, ex = select.select([self.socket.fileno()],
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[], [],
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self.timeout)
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if rd:
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self.handle_request()
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abort = self.abort
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#notify the main thread that we're about to exit
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socketDataProcessed.set()
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def process_request(self, request, client_address):
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#import threading
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t = threading.Thread(target = self.finish_request,
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args = (request, client_address))
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t.start()
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def runTCP(tcpserver):
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tcpserver.serve_until_stopped()
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#----------------------------------------------------------------------------
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# Test 0
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#----------------------------------------------------------------------------
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msgcount = 0
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def nextmessage():
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global msgcount
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rv = "Message %d" % msgcount
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msgcount = msgcount + 1
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return rv
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def test0():
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ERR = logging.getLogger("ERR")
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ERR.setLevel(logging.ERROR)
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INF = logging.getLogger("INF")
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INF.setLevel(logging.INFO)
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INF_ERR = logging.getLogger("INF.ERR")
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INF_ERR.setLevel(logging.ERROR)
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DEB = logging.getLogger("DEB")
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DEB.setLevel(logging.DEBUG)
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INF_UNDEF = logging.getLogger("INF.UNDEF")
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INF_ERR_UNDEF = logging.getLogger("INF.ERR.UNDEF")
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UNDEF = logging.getLogger("UNDEF")
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GRANDCHILD = logging.getLogger("INF.BADPARENT.UNDEF")
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CHILD = logging.getLogger("INF.BADPARENT")
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#These should log
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ERR.log(logging.FATAL, nextmessage())
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ERR.error(nextmessage())
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INF.log(logging.FATAL, nextmessage())
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INF.error(nextmessage())
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INF.warn(nextmessage())
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INF.info(nextmessage())
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INF_UNDEF.log(logging.FATAL, nextmessage())
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INF_UNDEF.error(nextmessage())
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INF_UNDEF.warn (nextmessage())
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INF_UNDEF.info (nextmessage())
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INF_ERR.log(logging.FATAL, nextmessage())
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INF_ERR.error(nextmessage())
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INF_ERR_UNDEF.log(logging.FATAL, nextmessage())
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INF_ERR_UNDEF.error(nextmessage())
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DEB.log(logging.FATAL, nextmessage())
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DEB.error(nextmessage())
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DEB.warn (nextmessage())
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DEB.info (nextmessage())
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DEB.debug(nextmessage())
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UNDEF.log(logging.FATAL, nextmessage())
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UNDEF.error(nextmessage())
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UNDEF.warn (nextmessage())
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UNDEF.info (nextmessage())
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GRANDCHILD.log(logging.FATAL, nextmessage())
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CHILD.log(logging.FATAL, nextmessage())
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#These should not log
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ERR.warn(nextmessage())
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ERR.info(nextmessage())
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ERR.debug(nextmessage())
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INF.debug(nextmessage())
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INF_UNDEF.debug(nextmessage())
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INF_ERR.warn(nextmessage())
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INF_ERR.info(nextmessage())
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INF_ERR.debug(nextmessage())
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INF_ERR_UNDEF.warn(nextmessage())
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INF_ERR_UNDEF.info(nextmessage())
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INF_ERR_UNDEF.debug(nextmessage())
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INF.info(FINISH_UP)
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#----------------------------------------------------------------------------
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# Test 1
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#----------------------------------------------------------------------------
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#
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# First, we define our levels. There can be as many as you want - the only
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# limitations are that they should be integers, the lowest should be > 0 and
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# larger values mean less information being logged. If you need specific
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# level values which do not fit into these limitations, you can use a
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# mapping dictionary to convert between your application levels and the
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# logging system.
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#
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SILENT = 10
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TACITURN = 9
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TERSE = 8
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EFFUSIVE = 7
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SOCIABLE = 6
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VERBOSE = 5
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TALKATIVE = 4
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GARRULOUS = 3
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CHATTERBOX = 2
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BORING = 1
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LEVEL_RANGE = range(BORING, SILENT + 1)
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#
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# Next, we define names for our levels. You don't need to do this - in which
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# case the system will use "Level n" to denote the text for the level.
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#
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my_logging_levels = {
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SILENT : 'Silent',
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TACITURN : 'Taciturn',
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TERSE : 'Terse',
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EFFUSIVE : 'Effusive',
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SOCIABLE : 'Sociable',
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VERBOSE : 'Verbose',
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TALKATIVE : 'Talkative',
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GARRULOUS : 'Garrulous',
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CHATTERBOX : 'Chatterbox',
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BORING : 'Boring',
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}
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#
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# Now, to demonstrate filtering: suppose for some perverse reason we only
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# want to print out all except GARRULOUS messages. Let's create a filter for
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# this purpose...
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#
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class SpecificLevelFilter(logging.Filter):
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def __init__(self, lvl):
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self.level = lvl
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def filter(self, record):
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return self.level != record.levelno
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class GarrulousFilter(SpecificLevelFilter):
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def __init__(self):
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SpecificLevelFilter.__init__(self, GARRULOUS)
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#
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# Now, let's demonstrate filtering at the logger. This time, use a filter
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# which excludes SOCIABLE and TACITURN messages. Note that GARRULOUS events
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# are still excluded.
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#
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class VerySpecificFilter(logging.Filter):
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def filter(self, record):
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return record.levelno not in [SOCIABLE, TACITURN]
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def message(s):
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sys.stdout.write("%s\n" % s)
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SHOULD1 = "This should only be seen at the '%s' logging level (or lower)"
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def test1():
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#
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# Now, tell the logging system to associate names with our levels.
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#
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for lvl in my_logging_levels.keys():
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logging.addLevelName(lvl, my_logging_levels[lvl])
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#
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# Now, define a test function which logs an event at each of our levels.
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#
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def doLog(log):
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for lvl in LEVEL_RANGE:
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log.log(lvl, SHOULD1, logging.getLevelName(lvl))
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log = logging.getLogger("")
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hdlr = log.handlers[0]
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#
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# Set the logging level to each different value and call the utility
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# function to log events.
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# In the output, you should see that each time round the loop, the number of
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# logging events which are actually output decreases.
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#
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for lvl in LEVEL_RANGE:
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message("-- setting logging level to '%s' -----" %
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logging.getLevelName(lvl))
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log.setLevel(lvl)
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doLog(log)
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#
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# Now, we demonstrate level filtering at the handler level. Tell the
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# handler defined above to filter at level 'SOCIABLE', and repeat the
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# above loop. Compare the output from the two runs.
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#
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hdlr.setLevel(SOCIABLE)
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message("-- Filtering at handler level to SOCIABLE --")
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for lvl in LEVEL_RANGE:
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message("-- setting logging level to '%s' -----" %
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logging.getLevelName(lvl))
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log.setLevel(lvl)
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doLog(log)
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hdlr.setLevel(0) #turn off level filtering at the handler
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garr = GarrulousFilter()
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hdlr.addFilter(garr)
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message("-- Filtering using GARRULOUS filter --")
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for lvl in LEVEL_RANGE:
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message("-- setting logging level to '%s' -----" %
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logging.getLevelName(lvl))
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log.setLevel(lvl)
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doLog(log)
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spec = VerySpecificFilter()
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log.addFilter(spec)
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message("-- Filtering using specific filter for SOCIABLE, TACITURN --")
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for lvl in LEVEL_RANGE:
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message("-- setting logging level to '%s' -----" %
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logging.getLevelName(lvl))
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log.setLevel(lvl)
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doLog(log)
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log.removeFilter(spec)
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hdlr.removeFilter(garr)
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#Undo the one level which clashes...for regression tests
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logging.addLevelName(logging.DEBUG, "DEBUG")
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#----------------------------------------------------------------------------
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# Test 2
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#----------------------------------------------------------------------------
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MSG = "-- logging %d at INFO, messages should be seen every 10 events --"
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def test2():
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logger = logging.getLogger("")
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sh = logger.handlers[0]
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sh.close()
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logger.removeHandler(sh)
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mh = logging.handlers.MemoryHandler(10,logging.WARNING, sh)
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logger.setLevel(logging.DEBUG)
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logger.addHandler(mh)
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message("-- logging at DEBUG, nothing should be seen yet --")
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logger.debug("Debug message")
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message("-- logging at INFO, nothing should be seen yet --")
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logger.info("Info message")
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message("-- logging at WARNING, 3 messages should be seen --")
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logger.warn("Warn message")
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for i in xrange(102):
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message(MSG % i)
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logger.info("Info index = %d", i)
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mh.close()
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logger.removeHandler(mh)
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logger.addHandler(sh)
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#----------------------------------------------------------------------------
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# Test 3
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#----------------------------------------------------------------------------
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FILTER = "a.b"
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def doLog3():
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logging.getLogger("a").info("Info 1")
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logging.getLogger("a.b").info("Info 2")
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logging.getLogger("a.c").info("Info 3")
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logging.getLogger("a.b.c").info("Info 4")
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logging.getLogger("a.b.c.d").info("Info 5")
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logging.getLogger("a.bb.c").info("Info 6")
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logging.getLogger("b").info("Info 7")
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logging.getLogger("b.a").info("Info 8")
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logging.getLogger("c.a.b").info("Info 9")
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logging.getLogger("a.bb").info("Info 10")
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def test3():
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root = logging.getLogger()
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root.setLevel(logging.DEBUG)
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hand = root.handlers[0]
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message("Unfiltered...")
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doLog3()
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message("Filtered with '%s'..." % FILTER)
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filt = logging.Filter(FILTER)
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hand.addFilter(filt)
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doLog3()
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hand.removeFilter(filt)
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#----------------------------------------------------------------------------
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# Test Harness
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#----------------------------------------------------------------------------
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def banner(nm, typ):
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sep = BANNER % (nm, typ)
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sys.stdout.write(sep)
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sys.stdout.flush()
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def test_main_inner():
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rootLogger = logging.getLogger("")
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rootLogger.setLevel(logging.DEBUG)
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hdlr = logging.StreamHandler(sys.stdout)
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fmt = logging.Formatter(logging.BASIC_FORMAT)
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hdlr.setFormatter(fmt)
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rootLogger.addHandler(hdlr)
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#Set up a handler such that all events are sent via a socket to the log
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#receiver (logrecv).
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#The handler will only be added to the rootLogger for some of the tests
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hdlr = logging.handlers.SocketHandler('localhost',
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logging.handlers.DEFAULT_TCP_LOGGING_PORT)
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#Configure the logger for logrecv so events do not propagate beyond it.
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#The sockLogger output is buffered in memory until the end of the test,
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#and printed at the end.
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sockOut = cStringIO.StringIO()
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sockLogger = logging.getLogger("logrecv")
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sockLogger.setLevel(logging.DEBUG)
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sockhdlr = logging.StreamHandler(sockOut)
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sockhdlr.setFormatter(logging.Formatter(
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"%(name)s -> %(levelname)s: %(message)s"))
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sockLogger.addHandler(sockhdlr)
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sockLogger.propagate = 0
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#Set up servers
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threads = []
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tcpserver = LogRecordSocketReceiver()
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#sys.stdout.write("About to start TCP server...\n")
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threads.append(threading.Thread(target=runTCP, args=(tcpserver,)))
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for thread in threads:
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thread.start()
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try:
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banner("log_test0", "begin")
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rootLogger.addHandler(hdlr)
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test0()
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hdlr.close()
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rootLogger.removeHandler(hdlr)
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banner("log_test0", "end")
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banner("log_test1", "begin")
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test1()
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banner("log_test1", "end")
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banner("log_test2", "begin")
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test2()
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banner("log_test2", "end")
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banner("log_test3", "begin")
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test3()
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banner("log_test3", "end")
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finally:
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#wait for TCP receiver to terminate
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socketDataProcessed.wait()
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for thread in threads:
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thread.join()
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banner("logrecv output", "begin")
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sys.stdout.write(sockOut.getvalue())
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sockhdlr.close()
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sockOut.close()
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banner("logrecv output", "end")
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sys.stdout.flush()
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def test_main():
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import locale
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# Set the locale to the platform-dependent default. I have no idea
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# why the test does this, but in any case we save the current locale
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# first so we can restore it at the end.
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try:
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original_locale = locale.setlocale(locale.LC_ALL)
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locale.setlocale(locale.LC_ALL, '')
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except (ValueError, locale.Error):
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# this happens on a Solaris box which only supports "C" locale
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# or a Mac OS X box which supports very little locale stuff at all
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original_locale = None
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try:
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test_main_inner()
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finally:
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if original_locale is not None:
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locale.setlocale(locale.LC_ALL, original_locale)
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if __name__ == "__main__":
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sys.stdout.write("test_logging\n")
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test_main()
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