# Copyright (c) 2010-2012 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" Tests for swift.common.utils """
from __future__ import with_statement
from test.unit import temptree
import ctypes
import errno
import eventlet
import logging
import os
import random
import re
import socket
import sys
from textwrap import dedent
import threading
import time
import unittest
import fcntl
import shutil
from Queue import Queue, Empty
from getpass import getuser
from shutil import rmtree
from StringIO import StringIO
from functools import partial
from tempfile import TemporaryFile, NamedTemporaryFile, mkdtemp
from mock import MagicMock, patch
from swift.common.exceptions import (Timeout, MessageTimeout,
ConnectionTimeout, LockTimeout)
from swift.common import utils
from swift.common.swob import Response
class MockOs():
def __init__(self, pass_funcs=[], called_funcs=[], raise_funcs=[]):
self.closed_fds = []
for func in pass_funcs:
setattr(self, func, self.pass_func)
self.called_funcs = {}
for func in called_funcs:
c_func = partial(self.called_func, func)
setattr(self, func, c_func)
for func in raise_funcs:
r_func = partial(self.raise_func, func)
setattr(self, func, r_func)
def pass_func(self, *args, **kwargs):
pass
setgroups = chdir = setsid = setgid = setuid = umask = pass_func
def called_func(self, name, *args, **kwargs):
self.called_funcs[name] = True
def raise_func(self, name, *args, **kwargs):
self.called_funcs[name] = True
raise OSError()
def dup2(self, source, target):
self.closed_fds.append(target)
def geteuid(self):
'''Pretend we are running as root.'''
return 0
def __getattr__(self, name):
# I only over-ride portions of the os module
try:
return object.__getattr__(self, name)
except AttributeError:
return getattr(os, name)
class MockUdpSocket():
def __init__(self):
self.sent = []
def sendto(self, data, target):
self.sent.append((data, target))
def close(self):
pass
class MockSys():
def __init__(self):
self.stdin = TemporaryFile('w')
self.stdout = TemporaryFile('r')
self.stderr = TemporaryFile('r')
self.__stderr__ = self.stderr
self.stdio_fds = [self.stdin.fileno(), self.stdout.fileno(),
self.stderr.fileno()]
def reset_loggers():
if hasattr(utils.get_logger, 'handler4logger'):
for logger, handler in utils.get_logger.handler4logger.items():
logger.thread_locals = (None, None)
logger.removeHandler(handler)
delattr(utils.get_logger, 'handler4logger')
if hasattr(utils.get_logger, 'console_handler4logger'):
for logger, h in utils.get_logger.console_handler4logger.items():
logger.thread_locals = (None, None)
logger.removeHandler(h)
delattr(utils.get_logger, 'console_handler4logger')
class TestUtils(unittest.TestCase):
""" Tests for swift.common.utils """
def setUp(self):
utils.HASH_PATH_SUFFIX = 'endcap'
utils.HASH_PATH_PREFIX = 'startcap'
def test_normalize_timestamp(self):
""" Test swift.common.utils.normalize_timestamp """
self.assertEquals(utils.normalize_timestamp('1253327593.48174'),
"1253327593.48174")
self.assertEquals(utils.normalize_timestamp(1253327593.48174),
"1253327593.48174")
self.assertEquals(utils.normalize_timestamp('1253327593.48'),
"1253327593.48000")
self.assertEquals(utils.normalize_timestamp(1253327593.48),
"1253327593.48000")
self.assertEquals(utils.normalize_timestamp('253327593.48'),
"0253327593.48000")
self.assertEquals(utils.normalize_timestamp(253327593.48),
"0253327593.48000")
self.assertEquals(utils.normalize_timestamp('1253327593'),
"1253327593.00000")
self.assertEquals(utils.normalize_timestamp(1253327593),
"1253327593.00000")
self.assertRaises(ValueError, utils.normalize_timestamp, '')
self.assertRaises(ValueError, utils.normalize_timestamp, 'abc')
def test_backwards(self):
""" Test swift.common.utils.backward """
# The lines are designed so that the function would encounter
# all of the boundary conditions and typical conditions.
# Block boundaries are marked with '<>' characters
blocksize = 25
lines = ['123456789x12345678><123456789\n', # block larger than rest
'123456789x123>\n', # block ends just before \n character
'123423456789\n',
'123456789x\n', # block ends at the end of line
'<123456789x123456789x123\n',
'<6789x123\n', # block ends at the beginning of the line
'6789x1234\n',
'1234><234\n', # block ends typically in the middle of line
'123456789x123456789\n']
with TemporaryFile('r+w') as f:
for line in lines:
f.write(line)
count = len(lines) - 1
for line in utils.backward(f, blocksize):
self.assertEquals(line, lines[count].split('\n')[0])
count -= 1
# Empty file case
with TemporaryFile('r') as f:
self.assertEquals([], list(utils.backward(f)))
def test_mkdirs(self):
testroot = os.path.join(os.path.dirname(__file__), 'mkdirs')
try:
os.unlink(testroot)
except Exception:
pass
rmtree(testroot, ignore_errors=1)
self.assert_(not os.path.exists(testroot))
utils.mkdirs(testroot)
self.assert_(os.path.exists(testroot))
utils.mkdirs(testroot)
self.assert_(os.path.exists(testroot))
rmtree(testroot, ignore_errors=1)
testdir = os.path.join(testroot, 'one/two/three')
self.assert_(not os.path.exists(testdir))
utils.mkdirs(testdir)
self.assert_(os.path.exists(testdir))
utils.mkdirs(testdir)
self.assert_(os.path.exists(testdir))
rmtree(testroot, ignore_errors=1)
open(testroot, 'wb').close()
self.assert_(not os.path.exists(testdir))
self.assertRaises(OSError, utils.mkdirs, testdir)
os.unlink(testroot)
def test_split_path(self):
""" Test swift.common.utils.split_account_path """
self.assertRaises(ValueError, utils.split_path, '')
self.assertRaises(ValueError, utils.split_path, '/')
self.assertRaises(ValueError, utils.split_path, '//')
self.assertEquals(utils.split_path('/a'), ['a'])
self.assertRaises(ValueError, utils.split_path, '//a')
self.assertEquals(utils.split_path('/a/'), ['a'])
self.assertRaises(ValueError, utils.split_path, '/a/c')
self.assertRaises(ValueError, utils.split_path, '//c')
self.assertRaises(ValueError, utils.split_path, '/a/c/')
self.assertRaises(ValueError, utils.split_path, '/a//')
self.assertRaises(ValueError, utils.split_path, '/a', 2)
self.assertRaises(ValueError, utils.split_path, '/a', 2, 3)
self.assertRaises(ValueError, utils.split_path, '/a', 2, 3, True)
self.assertEquals(utils.split_path('/a/c', 2), ['a', 'c'])
self.assertEquals(utils.split_path('/a/c/o', 3), ['a', 'c', 'o'])
self.assertRaises(ValueError, utils.split_path, '/a/c/o/r', 3, 3)
self.assertEquals(utils.split_path('/a/c/o/r', 3, 3, True),
['a', 'c', 'o/r'])
self.assertEquals(utils.split_path('/a/c', 2, 3, True),
['a', 'c', None])
self.assertRaises(ValueError, utils.split_path, '/a', 5, 4)
self.assertEquals(utils.split_path('/a/c/', 2), ['a', 'c'])
self.assertEquals(utils.split_path('/a/c/', 2, 3), ['a', 'c', ''])
try:
utils.split_path('o\nn e', 2)
except ValueError, err:
self.assertEquals(str(err), 'Invalid path: o%0An%20e')
try:
utils.split_path('o\nn e', 2, 3, True)
except ValueError, err:
self.assertEquals(str(err), 'Invalid path: o%0An%20e')
def test_validate_device_partition(self):
""" Test swift.common.utils.validate_device_partition """
utils.validate_device_partition('foo', 'bar')
self.assertRaises(ValueError,
utils.validate_device_partition, '', '')
self.assertRaises(ValueError,
utils.validate_device_partition, '', 'foo')
self.assertRaises(ValueError,
utils.validate_device_partition, 'foo', '')
self.assertRaises(ValueError,
utils.validate_device_partition, 'foo/bar', 'foo')
self.assertRaises(ValueError,
utils.validate_device_partition, 'foo', 'foo/bar')
self.assertRaises(ValueError,
utils.validate_device_partition, '.', 'foo')
self.assertRaises(ValueError,
utils.validate_device_partition, '..', 'foo')
self.assertRaises(ValueError,
utils.validate_device_partition, 'foo', '.')
self.assertRaises(ValueError,
utils.validate_device_partition, 'foo', '..')
try:
utils.validate_device_partition('o\nn e', 'foo')
except ValueError, err:
self.assertEquals(str(err), 'Invalid device: o%0An%20e')
try:
utils.validate_device_partition('foo', 'o\nn e')
except ValueError, err:
self.assertEquals(str(err), 'Invalid partition: o%0An%20e')
def test_NullLogger(self):
""" Test swift.common.utils.NullLogger """
sio = StringIO()
nl = utils.NullLogger()
nl.write('test')
self.assertEquals(sio.getvalue(), '')
def test_LoggerFileObject(self):
orig_stdout = sys.stdout
orig_stderr = sys.stderr
sio = StringIO()
handler = logging.StreamHandler(sio)
logger = logging.getLogger()
logger.addHandler(handler)
lfo = utils.LoggerFileObject(logger)
print 'test1'
self.assertEquals(sio.getvalue(), '')
sys.stdout = lfo
print 'test2'
self.assertEquals(sio.getvalue(), 'STDOUT: test2\n')
sys.stderr = lfo
print >> sys.stderr, 'test4'
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n')
sys.stdout = orig_stdout
print 'test5'
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n')
print >> sys.stderr, 'test6'
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n'
'STDOUT: test6\n')
sys.stderr = orig_stderr
print 'test8'
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n'
'STDOUT: test6\n')
lfo.writelines(['a', 'b', 'c'])
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n'
'STDOUT: test6\nSTDOUT: a#012b#012c\n')
lfo.close()
lfo.write('d')
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n'
'STDOUT: test6\nSTDOUT: a#012b#012c\nSTDOUT: d\n')
lfo.flush()
self.assertEquals(sio.getvalue(), 'STDOUT: test2\nSTDOUT: test4\n'
'STDOUT: test6\nSTDOUT: a#012b#012c\nSTDOUT: d\n')
got_exc = False
try:
for line in lfo:
pass
except Exception:
got_exc = True
self.assert_(got_exc)
got_exc = False
try:
for line in lfo.xreadlines():
pass
except Exception:
got_exc = True
self.assert_(got_exc)
self.assertRaises(IOError, lfo.read)
self.assertRaises(IOError, lfo.read, 1024)
self.assertRaises(IOError, lfo.readline)
self.assertRaises(IOError, lfo.readline, 1024)
lfo.tell()
def test_parse_options(self):
# Get a file that is definitely on disk
with NamedTemporaryFile() as f:
conf_file = f.name
conf, options = utils.parse_options(test_args=[conf_file])
self.assertEquals(conf, conf_file)
# assert defaults
self.assertEquals(options['verbose'], False)
self.assert_('once' not in options)
# assert verbose as option
conf, options = utils.parse_options(test_args=[conf_file, '-v'])
self.assertEquals(options['verbose'], True)
# check once option
conf, options = utils.parse_options(test_args=[conf_file],
once=True)
self.assertEquals(options['once'], False)
test_args = [conf_file, '--once']
conf, options = utils.parse_options(test_args=test_args, once=True)
self.assertEquals(options['once'], True)
# check options as arg parsing
test_args = [conf_file, 'once', 'plugin_name', 'verbose']
conf, options = utils.parse_options(test_args=test_args, once=True)
self.assertEquals(options['verbose'], True)
self.assertEquals(options['once'], True)
self.assertEquals(options['extra_args'], ['plugin_name'])
def test_parse_options_errors(self):
orig_stdout = sys.stdout
orig_stderr = sys.stderr
stdo = StringIO()
stde = StringIO()
utils.sys.stdout = stdo
utils.sys.stderr = stde
self.assertRaises(SystemExit, utils.parse_options, once=True,
test_args=[])
self.assert_('missing config' in stdo.getvalue())
# verify conf file must exist, context manager will delete temp file
with NamedTemporaryFile() as f:
conf_file = f.name
self.assertRaises(SystemExit, utils.parse_options, once=True,
test_args=[conf_file])
self.assert_('unable to locate' in stdo.getvalue())
# reset stdio
utils.sys.stdout = orig_stdout
utils.sys.stderr = orig_stderr
def test_get_logger(self):
sio = StringIO()
logger = logging.getLogger('server')
logger.addHandler(logging.StreamHandler(sio))
logger = utils.get_logger(None, 'server', log_route='server')
logger.warn('test1')
self.assertEquals(sio.getvalue(), 'test1\n')
logger.debug('test2')
self.assertEquals(sio.getvalue(), 'test1\n')
logger = utils.get_logger({'log_level': 'DEBUG'}, 'server',
log_route='server')
logger.debug('test3')
self.assertEquals(sio.getvalue(), 'test1\ntest3\n')
# Doesn't really test that the log facility is truly being used all the
# way to syslog; but exercises the code.
logger = utils.get_logger({'log_facility': 'LOG_LOCAL3'}, 'server',
log_route='server')
logger.warn('test4')
self.assertEquals(sio.getvalue(),
'test1\ntest3\ntest4\n')
# make sure debug doesn't log by default
logger.debug('test5')
self.assertEquals(sio.getvalue(),
'test1\ntest3\ntest4\n')
# make sure notice lvl logs by default
logger.notice('test6')
self.assertEquals(sio.getvalue(),
'test1\ntest3\ntest4\ntest6\n')
def test_get_logger_sysloghandler_plumbing(self):
orig_sysloghandler = utils.SysLogHandler
syslog_handler_args = []
def syslog_handler_catcher(*args, **kwargs):
syslog_handler_args.append((args, kwargs))
return orig_sysloghandler(*args, **kwargs)
syslog_handler_catcher.LOG_LOCAL0 = orig_sysloghandler.LOG_LOCAL0
syslog_handler_catcher.LOG_LOCAL3 = orig_sysloghandler.LOG_LOCAL3
try:
utils.SysLogHandler = syslog_handler_catcher
utils.get_logger({
'log_facility': 'LOG_LOCAL3',
}, 'server', log_route='server')
expected_args = [((), {'address': '/dev/log',
'facility': orig_sysloghandler.LOG_LOCAL3})]
if not os.path.exists('/dev/log') or \
os.path.isfile('/dev/log') or \
os.path.isdir('/dev/log'):
# Since socket on OSX is in /var/run/syslog, there will be
# a fallback to UDP.
expected_args.append(((),
{'facility': orig_sysloghandler.LOG_LOCAL3}))
self.assertEquals(expected_args, syslog_handler_args)
syslog_handler_args = []
utils.get_logger({
'log_facility': 'LOG_LOCAL3',
'log_address': '/foo/bar',
}, 'server', log_route='server')
self.assertEquals([
((), {'address': '/foo/bar',
'facility': orig_sysloghandler.LOG_LOCAL3}),
# Second call is because /foo/bar didn't exist (and wasn't a
# UNIX domain socket).
((), {'facility': orig_sysloghandler.LOG_LOCAL3})],
syslog_handler_args)
# Using UDP with default port
syslog_handler_args = []
utils.get_logger({
'log_udp_host': 'syslog.funtimes.com',
}, 'server', log_route='server')
self.assertEquals([
((), {'address': ('syslog.funtimes.com',
logging.handlers.SYSLOG_UDP_PORT),
'facility': orig_sysloghandler.LOG_LOCAL0})],
syslog_handler_args)
# Using UDP with non-default port
syslog_handler_args = []
utils.get_logger({
'log_udp_host': 'syslog.funtimes.com',
'log_udp_port': '2123',
}, 'server', log_route='server')
self.assertEquals([
((), {'address': ('syslog.funtimes.com', 2123),
'facility': orig_sysloghandler.LOG_LOCAL0})],
syslog_handler_args)
finally:
utils.SysLogHandler = orig_sysloghandler
def test_clean_logger_exception(self):
# setup stream logging
sio = StringIO()
logger = utils.get_logger(None)
handler = logging.StreamHandler(sio)
logger.logger.addHandler(handler)
def strip_value(sio):
v = sio.getvalue()
sio.truncate(0)
return v
def log_exception(exc):
try:
raise exc
except (Exception, Timeout):
logger.exception('blah')
try:
# establish base case
self.assertEquals(strip_value(sio), '')
logger.info('test')
self.assertEquals(strip_value(sio), 'test\n')
self.assertEquals(strip_value(sio), '')
logger.info('test')
logger.info('test')
self.assertEquals(strip_value(sio), 'test\ntest\n')
self.assertEquals(strip_value(sio), '')
# test OSError
for en in (errno.EIO, errno.ENOSPC):
log_exception(OSError(en, 'my %s error message' % en))
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('my %s error message' % en in log_msg)
# unfiltered
log_exception(OSError())
self.assert_('Traceback' in strip_value(sio))
# test socket.error
log_exception(socket.error(errno.ECONNREFUSED,
'my error message'))
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('errno.ECONNREFUSED message test' not in log_msg)
self.assert_('Connection refused' in log_msg)
log_exception(socket.error(errno.EHOSTUNREACH,
'my error message'))
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('my error message' not in log_msg)
self.assert_('Host unreachable' in log_msg)
log_exception(socket.error(errno.ETIMEDOUT, 'my error message'))
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('my error message' not in log_msg)
self.assert_('Connection timeout' in log_msg)
# unfiltered
log_exception(socket.error(0, 'my error message'))
log_msg = strip_value(sio)
self.assert_('Traceback' in log_msg)
self.assert_('my error message' in log_msg)
# test eventlet.Timeout
connection_timeout = ConnectionTimeout(42, 'my error message')
log_exception(connection_timeout)
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('ConnectionTimeout' in log_msg)
self.assert_('(42s)' in log_msg)
self.assert_('my error message' not in log_msg)
connection_timeout.cancel()
message_timeout = MessageTimeout(42, 'my error message')
log_exception(message_timeout)
log_msg = strip_value(sio)
self.assert_('Traceback' not in log_msg)
self.assert_('MessageTimeout' in log_msg)
self.assert_('(42s)' in log_msg)
self.assert_('my error message' in log_msg)
message_timeout.cancel()
# test unhandled
log_exception(Exception('my error message'))
log_msg = strip_value(sio)
self.assert_('Traceback' in log_msg)
self.assert_('my error message' in log_msg)
finally:
logger.logger.removeHandler(handler)
reset_loggers()
def test_swift_log_formatter(self):
# setup stream logging
sio = StringIO()
logger = utils.get_logger(None)
handler = logging.StreamHandler(sio)
handler.setFormatter(utils.SwiftLogFormatter())
logger.logger.addHandler(handler)
def strip_value(sio):
v = sio.getvalue()
sio.truncate(0)
return v
try:
self.assertFalse(logger.txn_id)
logger.error('my error message')
log_msg = strip_value(sio)
self.assert_('my error message' in log_msg)
self.assert_('txn' not in log_msg)
logger.txn_id = '12345'
logger.error('test')
log_msg = strip_value(sio)
self.assert_('txn' in log_msg)
self.assert_('12345' in log_msg)
# test no txn on info message
self.assertEquals(logger.txn_id, '12345')
logger.info('test')
log_msg = strip_value(sio)
self.assert_('txn' not in log_msg)
self.assert_('12345' not in log_msg)
# test txn already in message
self.assertEquals(logger.txn_id, '12345')
logger.warn('test 12345 test')
self.assertEquals(strip_value(sio), 'test 12345 test\n')
# Test multi line collapsing
logger.error('my\nerror\nmessage')
log_msg = strip_value(sio)
self.assert_('my#012error#012message' in log_msg)
# test client_ip
self.assertFalse(logger.client_ip)
logger.error('my error message')
log_msg = strip_value(sio)
self.assert_('my error message' in log_msg)
self.assert_('client_ip' not in log_msg)
logger.client_ip = '1.2.3.4'
logger.error('test')
log_msg = strip_value(sio)
self.assert_('client_ip' in log_msg)
self.assert_('1.2.3.4' in log_msg)
# test no client_ip on info message
self.assertEquals(logger.client_ip, '1.2.3.4')
logger.info('test')
log_msg = strip_value(sio)
self.assert_('client_ip' not in log_msg)
self.assert_('1.2.3.4' not in log_msg)
# test client_ip (and txn) already in message
self.assertEquals(logger.client_ip, '1.2.3.4')
logger.warn('test 1.2.3.4 test 12345')
self.assertEquals(strip_value(sio), 'test 1.2.3.4 test 12345\n')
finally:
logger.logger.removeHandler(handler)
reset_loggers()
def test_storage_directory(self):
self.assertEquals(utils.storage_directory('objects', '1', 'ABCDEF'),
'objects/1/DEF/ABCDEF')
def test_whataremyips(self):
myips = utils.whataremyips()
self.assert_(len(myips) > 1)
self.assert_('127.0.0.1' in myips)
def test_hash_path(self):
_prefix = utils.HASH_PATH_PREFIX
utils.HASH_PATH_PREFIX = ''
# Yes, these tests are deliberately very fragile. We want to make sure
# that if someones changes the results hash_path produces, they know it
try:
self.assertEquals(utils.hash_path('a'),
'1c84525acb02107ea475dcd3d09c2c58')
self.assertEquals(utils.hash_path('a', 'c'),
'33379ecb053aa5c9e356c68997cbb59e')
self.assertEquals(utils.hash_path('a', 'c', 'o'),
'06fbf0b514e5199dfc4e00f42eb5ea83')
self.assertEquals(utils.hash_path('a', 'c', 'o', raw_digest=False),
'06fbf0b514e5199dfc4e00f42eb5ea83')
self.assertEquals(utils.hash_path('a', 'c', 'o', raw_digest=True),
'\x06\xfb\xf0\xb5\x14\xe5\x19\x9d\xfcN'
'\x00\xf4.\xb5\xea\x83')
self.assertRaises(ValueError, utils.hash_path, 'a', object='o')
utils.HASH_PATH_PREFIX = 'abcdef'
self.assertEquals(utils.hash_path('a', 'c', 'o', raw_digest=False),
'363f9b535bfb7d17a43a46a358afca0e')
finally:
utils.HASH_PATH_PREFIX = _prefix
def test_load_libc_function(self):
self.assert_(callable(
utils.load_libc_function('printf')))
self.assert_(callable(
utils.load_libc_function('some_not_real_function')))
def test_readconf(self):
conf = '''[section1]
foo = bar
[section2]
log_name = yarr'''
# setup a real file
with open('/tmp/test', 'wb') as f:
f.write(conf)
make_filename = lambda: '/tmp/test'
# setup a file stream
make_fp = lambda: StringIO(conf)
for conf_object_maker in (make_filename, make_fp):
conffile = conf_object_maker()
result = utils.readconf(conffile)
expected = {'__file__': conffile,
'log_name': None,
'section1': {'foo': 'bar'},
'section2': {'log_name': 'yarr'}}
self.assertEquals(result, expected)
conffile = conf_object_maker()
result = utils.readconf(conffile, 'section1')
expected = {'__file__': conffile, 'log_name': 'section1',
'foo': 'bar'}
self.assertEquals(result, expected)
conffile = conf_object_maker()
result = utils.readconf(conffile,
'section2').get('log_name')
expected = 'yarr'
self.assertEquals(result, expected)
conffile = conf_object_maker()
result = utils.readconf(conffile, 'section1',
log_name='foo').get('log_name')
expected = 'foo'
self.assertEquals(result, expected)
conffile = conf_object_maker()
result = utils.readconf(conffile, 'section1',
defaults={'bar': 'baz'})
expected = {'__file__': conffile, 'log_name': 'section1',
'foo': 'bar', 'bar': 'baz'}
self.assertEquals(result, expected)
self.assertRaises(SystemExit, utils.readconf, '/tmp/test', 'section3')
os.unlink('/tmp/test')
self.assertRaises(SystemExit, utils.readconf, '/tmp/test')
def test_readconf_raw(self):
conf = '''[section1]
foo = bar
[section2]
log_name = %(yarr)s'''
# setup a real file
with open('/tmp/test', 'wb') as f:
f.write(conf)
make_filename = lambda: '/tmp/test'
# setup a file stream
make_fp = lambda: StringIO(conf)
for conf_object_maker in (make_filename, make_fp):
conffile = conf_object_maker()
result = utils.readconf(conffile, raw=True)
expected = {'__file__': conffile,
'log_name': None,
'section1': {'foo': 'bar'},
'section2': {'log_name': '%(yarr)s'}}
self.assertEquals(result, expected)
os.unlink('/tmp/test')
self.assertRaises(SystemExit, utils.readconf, '/tmp/test')
def test_readconf_dir(self):
config_dir = {
'server.conf.d/01.conf': """
[DEFAULT]
port = 8080
foo = bar
[section1]
name=section1
""",
'server.conf.d/section2.conf': """
[DEFAULT]
port = 8081
bar = baz
[section2]
name=section2
""",
'other-server.conf.d/01.conf': """
[DEFAULT]
port = 8082
[section3]
name=section3
"""
}
# strip indent from test config contents
config_dir = dict((f, dedent(c)) for (f, c) in config_dir.items())
with temptree(*zip(*config_dir.items())) as path:
conf_dir = os.path.join(path, 'server.conf.d')
conf = utils.readconf(conf_dir)
expected = {
'__file__': os.path.join(path, 'server.conf.d'),
'log_name': None,
'section1': {
'port': '8081',
'foo': 'bar',
'bar': 'baz',
'name': 'section1',
},
'section2': {
'port': '8081',
'foo': 'bar',
'bar': 'baz',
'name': 'section2',
},
}
self.assertEquals(conf, expected)
def test_readconf_dir_ignores_hidden_and_nondotconf_files(self):
config_dir = {
'server.conf.d/01.conf': """
[section1]
port = 8080
""",
'server.conf.d/.01.conf.swp': """
[section]
port = 8081
""",
'server.conf.d/01.conf-bak': """
[section]
port = 8082
""",
}
# strip indent from test config contents
config_dir = dict((f, dedent(c)) for (f, c) in config_dir.items())
with temptree(*zip(*config_dir.items())) as path:
conf_dir = os.path.join(path, 'server.conf.d')
conf = utils.readconf(conf_dir)
expected = {
'__file__': os.path.join(path, 'server.conf.d'),
'log_name': None,
'section1': {
'port': '8080',
},
}
self.assertEquals(conf, expected)
def test_drop_privileges(self):
user = getuser()
# over-ride os with mock
required_func_calls = ('setgroups', 'setgid', 'setuid', 'setsid',
'chdir', 'umask')
utils.os = MockOs(called_funcs=required_func_calls)
# exercise the code
utils.drop_privileges(user)
for func in required_func_calls:
self.assert_(utils.os.called_funcs[func])
import pwd
self.assertEquals(pwd.getpwnam(user)[5], utils.os.environ['HOME'])
# reset; test same args, OSError trying to get session leader
utils.os = MockOs(called_funcs=required_func_calls,
raise_funcs=('setsid',))
for func in required_func_calls:
self.assertFalse(utils.os.called_funcs.get(func, False))
utils.drop_privileges(user)
for func in required_func_calls:
self.assert_(utils.os.called_funcs[func])
def test_capture_stdio(self):
# stubs
logger = utils.get_logger(None, 'dummy')
# mock utils system modules
_orig_sys = utils.sys
_orig_os = utils.os
try:
utils.sys = MockSys()
utils.os = MockOs()
# basic test
utils.capture_stdio(logger)
self.assert_(utils.sys.excepthook is not None)
self.assertEquals(utils.os.closed_fds, utils.sys.stdio_fds)
self.assert_(isinstance(utils.sys.stdout, utils.LoggerFileObject))
self.assert_(isinstance(utils.sys.stderr, utils.LoggerFileObject))
# reset; test same args, but exc when trying to close stdio
utils.os = MockOs(raise_funcs=('dup2',))
utils.sys = MockSys()
# test unable to close stdio
utils.capture_stdio(logger)
self.assert_(utils.sys.excepthook is not None)
self.assertEquals(utils.os.closed_fds, [])
self.assert_(isinstance(utils.sys.stdout, utils.LoggerFileObject))
self.assert_(isinstance(utils.sys.stderr, utils.LoggerFileObject))
# reset; test some other args
utils.os = MockOs()
utils.sys = MockSys()
logger = utils.get_logger(None, log_to_console=True)
# test console log
utils.capture_stdio(logger, capture_stdout=False,
capture_stderr=False)
self.assert_(utils.sys.excepthook is not None)
# when logging to console, stderr remains open
self.assertEquals(utils.os.closed_fds, utils.sys.stdio_fds[:2])
reset_loggers()
# stdio not captured
self.assertFalse(isinstance(utils.sys.stdout,
utils.LoggerFileObject))
self.assertFalse(isinstance(utils.sys.stderr,
utils.LoggerFileObject))
reset_loggers()
finally:
utils.sys = _orig_sys
utils.os = _orig_os
def test_get_logger_console(self):
reset_loggers()
logger = utils.get_logger(None)
console_handlers = [h for h in logger.logger.handlers if
isinstance(h, logging.StreamHandler)]
self.assertFalse(console_handlers)
logger = utils.get_logger(None, log_to_console=True)
console_handlers = [h for h in logger.logger.handlers if
isinstance(h, logging.StreamHandler)]
self.assert_(console_handlers)
# make sure you can't have two console handlers
self.assertEquals(len(console_handlers), 1)
old_handler = console_handlers[0]
logger = utils.get_logger(None, log_to_console=True)
console_handlers = [h for h in logger.logger.handlers if
isinstance(h, logging.StreamHandler)]
self.assertEquals(len(console_handlers), 1)
new_handler = console_handlers[0]
self.assertNotEquals(new_handler, old_handler)
reset_loggers()
def test_ratelimit_sleep(self):
running_time = 0
start = time.time()
for i in range(100):
running_time = utils.ratelimit_sleep(running_time, 0)
self.assertTrue(abs((time.time() - start) * 100) < 1)
running_time = 0
start = time.time()
for i in range(50):
running_time = utils.ratelimit_sleep(running_time, 200)
# make sure it's accurate to 10th of a second
self.assertTrue(abs(25 - (time.time() - start) * 100) < 10)
def test_ratelimit_sleep_with_incr(self):
running_time = 0
start = time.time()
vals = [5, 17, 0, 3, 11, 30,
40, 4, 13, 2, -1] * 2 # adds up to 250 (with no -1)
total = 0
for i in vals:
running_time = utils.ratelimit_sleep(running_time,
500, incr_by=i)
total += i
self.assertTrue(abs(50 - (time.time() - start) * 100) < 10)
def test_urlparse(self):
parsed = utils.urlparse('http://127.0.0.1/')
self.assertEquals(parsed.scheme, 'http')
self.assertEquals(parsed.hostname, '127.0.0.1')
self.assertEquals(parsed.path, '/')
parsed = utils.urlparse('http://127.0.0.1:8080/')
self.assertEquals(parsed.port, 8080)
parsed = utils.urlparse('https://127.0.0.1/')
self.assertEquals(parsed.scheme, 'https')
parsed = utils.urlparse('http://[::1]/')
self.assertEquals(parsed.hostname, '::1')
parsed = utils.urlparse('http://[::1]:8080/')
self.assertEquals(parsed.hostname, '::1')
self.assertEquals(parsed.port, 8080)
parsed = utils.urlparse('www.example.com')
self.assertEquals(parsed.hostname, '')
def test_ratelimit_sleep_with_sleep(self):
running_time = 0
start = time.time()
sleeps = [0] * 7 + [.2] * 3 + [0] * 30
for i in sleeps:
running_time = utils.ratelimit_sleep(running_time, 40,
rate_buffer=1)
time.sleep(i)
# make sure it's accurate to 10th of a second
self.assertTrue(abs(100 - (time.time() - start) * 100) < 10)
def test_search_tree(self):
# file match & ext miss
with temptree(['asdf.conf', 'blarg.conf', 'asdf.cfg']) as t:
asdf = utils.search_tree(t, 'a*', '.conf')
self.assertEquals(len(asdf), 1)
self.assertEquals(asdf[0],
os.path.join(t, 'asdf.conf'))
# multi-file match & glob miss & sort
with temptree(['application.bin', 'apple.bin', 'apropos.bin']) as t:
app_bins = utils.search_tree(t, 'app*', 'bin')
self.assertEquals(len(app_bins), 2)
self.assertEquals(app_bins[0],
os.path.join(t, 'apple.bin'))
self.assertEquals(app_bins[1],
os.path.join(t, 'application.bin'))
# test file in folder & ext miss & glob miss
files = (
'sub/file1.ini',
'sub/file2.conf',
'sub.bin',
'bus.ini',
'bus/file3.ini',
)
with temptree(files) as t:
sub_ini = utils.search_tree(t, 'sub*', '.ini')
self.assertEquals(len(sub_ini), 1)
self.assertEquals(sub_ini[0],
os.path.join(t, 'sub/file1.ini'))
# test multi-file in folder & sub-folder & ext miss & glob miss
files = (
'folder_file.txt',
'folder/1.txt',
'folder/sub/2.txt',
'folder2/3.txt',
'Folder3/4.txt'
'folder.rc',
)
with temptree(files) as t:
folder_texts = utils.search_tree(t, 'folder*', '.txt')
self.assertEquals(len(folder_texts), 4)
f1 = os.path.join(t, 'folder_file.txt')
f2 = os.path.join(t, 'folder/1.txt')
f3 = os.path.join(t, 'folder/sub/2.txt')
f4 = os.path.join(t, 'folder2/3.txt')
for f in [f1, f2, f3, f4]:
self.assert_(f in folder_texts)
def test_search_tree_with_directory_ext_match(self):
files = (
'object-server/object-server.conf-base',
'object-server/1.conf.d/base.conf',
'object-server/1.conf.d/1.conf',
'object-server/2.conf.d/base.conf',
'object-server/2.conf.d/2.conf',
'object-server/3.conf.d/base.conf',
'object-server/3.conf.d/3.conf',
'object-server/4.conf.d/base.conf',
'object-server/4.conf.d/4.conf',
)
with temptree(files) as t:
conf_dirs = utils.search_tree(t, 'object-server', '.conf',
dir_ext='conf.d')
self.assertEquals(len(conf_dirs), 4)
for i in range(4):
conf_dir = os.path.join(t, 'object-server/%d.conf.d' % (i + 1))
self.assert_(conf_dir in conf_dirs)
def test_write_file(self):
with temptree([]) as t:
file_name = os.path.join(t, 'test')
utils.write_file(file_name, 'test')
with open(file_name, 'r') as f:
contents = f.read()
self.assertEquals(contents, 'test')
# and also subdirs
file_name = os.path.join(t, 'subdir/test2')
utils.write_file(file_name, 'test2')
with open(file_name, 'r') as f:
contents = f.read()
self.assertEquals(contents, 'test2')
# but can't over-write files
file_name = os.path.join(t, 'subdir/test2/test3')
self.assertRaises(IOError, utils.write_file, file_name,
'test3')
def test_remove_file(self):
with temptree([]) as t:
file_name = os.path.join(t, 'blah.pid')
# assert no raise
self.assertEquals(os.path.exists(file_name), False)
self.assertEquals(utils.remove_file(file_name), None)
with open(file_name, 'w') as f:
f.write('1')
self.assert_(os.path.exists(file_name))
self.assertEquals(utils.remove_file(file_name), None)
self.assertFalse(os.path.exists(file_name))
def test_human_readable(self):
self.assertEquals(utils.human_readable(0), '0')
self.assertEquals(utils.human_readable(1), '1')
self.assertEquals(utils.human_readable(10), '10')
self.assertEquals(utils.human_readable(100), '100')
self.assertEquals(utils.human_readable(999), '999')
self.assertEquals(utils.human_readable(1024), '1Ki')
self.assertEquals(utils.human_readable(1535), '1Ki')
self.assertEquals(utils.human_readable(1536), '2Ki')
self.assertEquals(utils.human_readable(1047552), '1023Ki')
self.assertEquals(utils.human_readable(1048063), '1023Ki')
self.assertEquals(utils.human_readable(1048064), '1Mi')
self.assertEquals(utils.human_readable(1048576), '1Mi')
self.assertEquals(utils.human_readable(1073741824), '1Gi')
self.assertEquals(utils.human_readable(1099511627776), '1Ti')
self.assertEquals(utils.human_readable(1125899906842624), '1Pi')
self.assertEquals(utils.human_readable(1152921504606846976), '1Ei')
self.assertEquals(utils.human_readable(1180591620717411303424), '1Zi')
self.assertEquals(utils.human_readable(1208925819614629174706176),
'1Yi')
self.assertEquals(utils.human_readable(1237940039285380274899124224),
'1024Yi')
def test_validate_sync_to(self):
for goodurl in ('http://1.1.1.1/v1/a/c/o',
'http://1.1.1.1:8080/a/c/o',
'http://2.2.2.2/a/c/o',
'https://1.1.1.1/v1/a/c/o',
''):
self.assertEquals(utils.validate_sync_to(goodurl,
['1.1.1.1', '2.2.2.2']),
None)
for badurl in ('http://1.1.1.1',
'httpq://1.1.1.1/v1/a/c/o',
'http://1.1.1.1/v1/a/c/o?query',
'http://1.1.1.1/v1/a/c/o#frag',
'http://1.1.1.1/v1/a/c/o?query#frag',
'http://1.1.1.1/v1/a/c/o?query=param',
'http://1.1.1.1/v1/a/c/o?query=param#frag',
'http://1.1.1.2/v1/a/c/o'):
self.assertNotEquals(
utils.validate_sync_to(badurl, ['1.1.1.1', '2.2.2.2']),
None)
def test_TRUE_VALUES(self):
for v in utils.TRUE_VALUES:
self.assertEquals(v, v.lower())
def test_config_true_value(self):
orig_trues = utils.TRUE_VALUES
try:
utils.TRUE_VALUES = 'hello world'.split()
for val in 'hello world HELLO WORLD'.split():
self.assertTrue(utils.config_true_value(val) is True)
self.assertTrue(utils.config_true_value(True) is True)
self.assertTrue(utils.config_true_value('foo') is False)
self.assertTrue(utils.config_true_value(False) is False)
finally:
utils.TRUE_VALUES = orig_trues
def test_config_auto_int_value(self):
expectations = {
# (value, default) : expected,
('1', 0): 1,
(1, 0): 1,
('asdf', 0): ValueError,
('auto', 1): 1,
('AutO', 1): 1,
('Aut0', 1): ValueError,
(None, 1): 1,
}
for (value, default), expected in expectations.items():
try:
rv = utils.config_auto_int_value(value, default)
except Exception, e:
if e.__class__ is not expected:
raise
else:
self.assertEquals(expected, rv)
def test_streq_const_time(self):
self.assertTrue(utils.streq_const_time('abc123', 'abc123'))
self.assertFalse(utils.streq_const_time('a', 'aaaaa'))
self.assertFalse(utils.streq_const_time('ABC123', 'abc123'))
def test_quorum_size(self):
expected_sizes = {1: 1,
2: 2,
3: 2,
4: 3,
5: 3}
got_sizes = dict([(n, utils.quorum_size(n)) for n in expected_sizes])
self.assertEqual(expected_sizes, got_sizes)
def test_rsync_ip_ipv4_localhost(self):
self.assertEqual(utils.rsync_ip('127.0.0.1'), '127.0.0.1')
def test_rsync_ip_ipv6_random_ip(self):
self.assertEqual(
utils.rsync_ip('fe80:0000:0000:0000:0202:b3ff:fe1e:8329'),
'[fe80:0000:0000:0000:0202:b3ff:fe1e:8329]')
def test_rsync_ip_ipv6_ipv4_compatible(self):
self.assertEqual(
utils.rsync_ip('::ffff:192.0.2.128'), '[::ffff:192.0.2.128]')
def test_fallocate_reserve(self):
class StatVFS(object):
f_frsize = 1024
f_bavail = 1
def fstatvfs(fd):
return StatVFS()
orig_FALLOCATE_RESERVE = utils.FALLOCATE_RESERVE
orig_fstatvfs = utils.os.fstatvfs
try:
fallocate = utils.FallocateWrapper(noop=True)
utils.os.fstatvfs = fstatvfs
# Want 1023 reserved, have 1024 * 1 free, so succeeds
utils.FALLOCATE_RESERVE = 1023
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
self.assertEquals(fallocate(0, 1, 0, ctypes.c_uint64(0)), 0)
# Want 1023 reserved, have 512 * 2 free, so succeeds
utils.FALLOCATE_RESERVE = 1023
StatVFS.f_frsize = 512
StatVFS.f_bavail = 2
self.assertEquals(fallocate(0, 1, 0, ctypes.c_uint64(0)), 0)
# Want 1024 reserved, have 1024 * 1 free, so fails
utils.FALLOCATE_RESERVE = 1024
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(0))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1024 <= 1024')
# Want 1024 reserved, have 512 * 2 free, so fails
utils.FALLOCATE_RESERVE = 1024
StatVFS.f_frsize = 512
StatVFS.f_bavail = 2
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(0))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1024 <= 1024')
# Want 2048 reserved, have 1024 * 1 free, so fails
utils.FALLOCATE_RESERVE = 2048
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(0))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1024 <= 2048')
# Want 2048 reserved, have 512 * 2 free, so fails
utils.FALLOCATE_RESERVE = 2048
StatVFS.f_frsize = 512
StatVFS.f_bavail = 2
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(0))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1024 <= 2048')
# Want 1023 reserved, have 1024 * 1 free, but file size is 1, so
# fails
utils.FALLOCATE_RESERVE = 1023
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(1))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1023 <= 1023')
# Want 1022 reserved, have 1024 * 1 free, and file size is 1, so
# succeeds
utils.FALLOCATE_RESERVE = 1022
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
self.assertEquals(fallocate(0, 1, 0, ctypes.c_uint64(1)), 0)
# Want 1023 reserved, have 1024 * 1 free, and file size is 0, so
# succeeds
utils.FALLOCATE_RESERVE = 1023
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
self.assertEquals(fallocate(0, 1, 0, ctypes.c_uint64(0)), 0)
# Want 1024 reserved, have 1024 * 1 free, and even though
# file size is 0, since we're under the reserve, fails
utils.FALLOCATE_RESERVE = 1024
StatVFS.f_frsize = 1024
StatVFS.f_bavail = 1
exc = None
try:
fallocate(0, 1, 0, ctypes.c_uint64(0))
except OSError, err:
exc = err
self.assertEquals(str(exc), 'FALLOCATE_RESERVE fail 1024 <= 1024')
finally:
utils.FALLOCATE_RESERVE = orig_FALLOCATE_RESERVE
utils.os.fstatvfs = orig_fstatvfs
def test_fallocate_func(self):
class FallocateWrapper(object):
def __init__(self):
self.last_call = None
def __call__(self, *args):
self.last_call = list(args)
self.last_call[-1] = self.last_call[-1].value
return 0
orig__sys_fallocate = utils._sys_fallocate
try:
utils._sys_fallocate = FallocateWrapper()
# Ensure fallocate calls _sys_fallocate even with 0 bytes
utils._sys_fallocate.last_call = None
utils.fallocate(1234, 0)
self.assertEquals(utils._sys_fallocate.last_call,
[1234, 1, 0, 0])
# Ensure fallocate calls _sys_fallocate even with negative bytes
utils._sys_fallocate.last_call = None
utils.fallocate(1234, -5678)
self.assertEquals(utils._sys_fallocate.last_call,
[1234, 1, 0, 0])
# Ensure fallocate calls _sys_fallocate properly with positive
# bytes
utils._sys_fallocate.last_call = None
utils.fallocate(1234, 1)
self.assertEquals(utils._sys_fallocate.last_call,
[1234, 1, 0, 1])
utils._sys_fallocate.last_call = None
utils.fallocate(1234, 10 * 1024 * 1024 * 1024)
self.assertEquals(utils._sys_fallocate.last_call,
[1234, 1, 0, 10 * 1024 * 1024 * 1024])
finally:
utils._sys_fallocate = orig__sys_fallocate
def test_generate_trans_id(self):
fake_time = 1366428370.5163341
with patch.object(utils.time, 'time', return_value=fake_time):
trans_id = utils.generate_trans_id('')
self.assertEquals(len(trans_id), 34)
self.assertEquals(trans_id[:2], 'tx')
self.assertEquals(trans_id[23], '-')
self.assertEquals(int(trans_id[24:], 16), int(fake_time))
with patch.object(utils.time, 'time', return_value=fake_time):
trans_id = utils.generate_trans_id('-suffix')
self.assertEquals(len(trans_id), 41)
self.assertEquals(trans_id[:2], 'tx')
self.assertEquals(trans_id[34:], '-suffix')
self.assertEquals(trans_id[23], '-')
self.assertEquals(int(trans_id[24:34], 16), int(fake_time))
def test_get_trans_id_time(self):
ts = utils.get_trans_id_time('tx8c8bc884cdaf499bb29429aa9c46946e')
self.assertEquals(ts, None)
ts = utils.get_trans_id_time('tx1df4ff4f55ea45f7b2ec2-0051720c06')
self.assertEquals(ts, 1366428678)
self.assertEquals(
time.asctime(time.gmtime(ts)) + ' UTC',
'Sat Apr 20 03:31:18 2013 UTC')
ts = utils.get_trans_id_time(
'tx1df4ff4f55ea45f7b2ec2-0051720c06-suffix')
self.assertEquals(ts, 1366428678)
self.assertEquals(
time.asctime(time.gmtime(ts)) + ' UTC',
'Sat Apr 20 03:31:18 2013 UTC')
ts = utils.get_trans_id_time('')
self.assertEquals(ts, None)
ts = utils.get_trans_id_time('garbage')
self.assertEquals(ts, None)
ts = utils.get_trans_id_time('tx1df4ff4f55ea45f7b2ec2-almostright')
self.assertEquals(ts, None)
def test_tpool_reraise(self):
with patch.object(utils.tpool, 'execute', lambda f: f()):
self.assertTrue(
utils.tpool_reraise(MagicMock(return_value='test1')), 'test1')
self.assertRaises(Exception,
utils.tpool_reraise, MagicMock(side_effect=Exception('test2')))
self.assertRaises(BaseException,
utils.tpool_reraise,
MagicMock(side_effect=BaseException('test3')))
def test_lock_file(self):
flags = os.O_CREAT | os.O_RDWR
with NamedTemporaryFile(delete=False) as nt:
nt.write("test string")
nt.flush()
nt.close()
with utils.lock_file(nt.name, unlink=False) as f:
self.assertEqual(f.read(), "test string")
# we have a lock, now let's try to get a newer one
fd = os.open(nt.name, flags)
self.assertRaises(IOError, fcntl.flock, fd,
fcntl.LOCK_EX | fcntl.LOCK_NB)
with utils.lock_file(nt.name, unlink=False, append=True) as f:
self.assertEqual(f.read(), "test string")
f.seek(0)
f.write("\nanother string")
f.flush()
f.seek(0)
self.assertEqual(f.read(), "test string\nanother string")
# we have a lock, now let's try to get a newer one
fd = os.open(nt.name, flags)
self.assertRaises(IOError, fcntl.flock, fd,
fcntl.LOCK_EX | fcntl.LOCK_NB)
with utils.lock_file(nt.name, timeout=3, unlink=False) as f:
try:
with utils.lock_file(nt.name, timeout=1, unlink=False) as f:
self.assertTrue(False, "Expected LockTimeout exception")
except LockTimeout:
pass
with utils.lock_file(nt.name, unlink=True) as f:
self.assertEqual(f.read(), "test string\nanother string")
# we have a lock, now let's try to get a newer one
fd = os.open(nt.name, flags)
self.assertRaises(IOError, fcntl.flock, fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
self.assertRaises(OSError, os.remove, nt.name)
def test_ismount_path_does_not_exist(self):
tmpdir = mkdtemp()
try:
assert utils.ismount(os.path.join(tmpdir, 'bar')) is False
finally:
shutil.rmtree(tmpdir)
def test_ismount_path_not_mount(self):
tmpdir = mkdtemp()
try:
assert utils.ismount(tmpdir) is False
finally:
shutil.rmtree(tmpdir)
def test_ismount_path_error(self):
def _mock_os_lstat(path):
raise OSError(13, "foo")
tmpdir = mkdtemp()
try:
with patch("os.lstat", _mock_os_lstat):
try:
utils.ismount(tmpdir)
except OSError:
pass
else:
self.fail("Expected OSError")
finally:
shutil.rmtree(tmpdir)
def test_ismount_path_is_symlink(self):
tmpdir = mkdtemp()
try:
link = os.path.join(tmpdir, "tmp")
os.symlink("/tmp", link)
assert utils.ismount(link) is False
finally:
shutil.rmtree(tmpdir)
def test_ismount_path_is_root(self):
assert utils.ismount('/') is True
def test_ismount_parent_path_error(self):
_os_lstat = os.lstat
def _mock_os_lstat(path):
if path.endswith(".."):
raise OSError(13, "foo")
else:
return _os_lstat(path)
tmpdir = mkdtemp()
try:
with patch("os.lstat", _mock_os_lstat):
try:
utils.ismount(tmpdir)
except OSError:
pass
else:
self.fail("Expected OSError")
finally:
shutil.rmtree(tmpdir)
def test_ismount_successes_dev(self):
_os_lstat = os.lstat
class MockStat(object):
def __init__(self, mode, dev, ino):
self.st_mode = mode
self.st_dev = dev
self.st_ino = ino
def _mock_os_lstat(path):
if path.endswith(".."):
parent = _os_lstat(path)
return MockStat(parent.st_mode, parent.st_dev + 1,
parent.st_ino)
else:
return _os_lstat(path)
tmpdir = mkdtemp()
try:
with patch("os.lstat", _mock_os_lstat):
try:
utils.ismount(tmpdir)
except OSError:
self.fail("Unexpected exception")
else:
pass
finally:
shutil.rmtree(tmpdir)
def test_ismount_successes_ino(self):
_os_lstat = os.lstat
class MockStat(object):
def __init__(self, mode, dev, ino):
self.st_mode = mode
self.st_dev = dev
self.st_ino = ino
def _mock_os_lstat(path):
if path.endswith(".."):
return _os_lstat(path)
else:
parent_path = os.path.join(path, "..")
child = _os_lstat(path)
parent = _os_lstat(parent_path)
return MockStat(child.st_mode, parent.st_ino,
child.st_dev)
tmpdir = mkdtemp()
try:
with patch("os.lstat", _mock_os_lstat):
try:
utils.ismount(tmpdir)
except OSError:
self.fail("Unexpected exception")
else:
pass
finally:
shutil.rmtree(tmpdir)
def test_parse_content_type(self):
self.assertEquals(utils.parse_content_type('text/plain'),
('text/plain', []))
self.assertEquals(utils.parse_content_type('text/plain;charset=utf-8'),
('text/plain', [('charset', 'utf-8')]))
self.assertEquals(
utils.parse_content_type('text/plain;hello="world";charset=utf-8'),
('text/plain', [('hello', '"world"'), ('charset', 'utf-8')]))
self.assertEquals(
utils.parse_content_type('text/plain; hello="world"; a=b'),
('text/plain', [('hello', '"world"'), ('a', 'b')]))
self.assertEquals(
utils.parse_content_type(r'text/plain; x="\""; a=b'),
('text/plain', [('x', r'"\""'), ('a', 'b')]))
self.assertEquals(
utils.parse_content_type(r'text/plain; x; a=b'),
('text/plain', [('x', ''), ('a', 'b')]))
self.assertEquals(
utils.parse_content_type(r'text/plain; x="\""; a'),
('text/plain', [('x', r'"\""'), ('a', '')]))
class TestFileLikeIter(unittest.TestCase):
def test_iter_file_iter(self):
in_iter = ['abc', 'de', 'fghijk', 'l']
chunks = []
for chunk in utils.FileLikeIter(in_iter):
chunks.append(chunk)
self.assertEquals(chunks, in_iter)
def test_next(self):
in_iter = ['abc', 'de', 'fghijk', 'l']
chunks = []
iter_file = utils.FileLikeIter(in_iter)
while True:
try:
chunk = iter_file.next()
except StopIteration:
break
chunks.append(chunk)
self.assertEquals(chunks, in_iter)
def test_read(self):
in_iter = ['abc', 'de', 'fghijk', 'l']
iter_file = utils.FileLikeIter(in_iter)
self.assertEquals(iter_file.read(), ''.join(in_iter))
def test_read_with_size(self):
in_iter = ['abc', 'de', 'fghijk', 'l']
chunks = []
iter_file = utils.FileLikeIter(in_iter)
while True:
chunk = iter_file.read(2)
if not chunk:
break
self.assertTrue(len(chunk) <= 2)
chunks.append(chunk)
self.assertEquals(''.join(chunks), ''.join(in_iter))
def test_read_with_size_zero(self):
# makes little sense, but file supports it, so...
self.assertEquals(utils.FileLikeIter('abc').read(0), '')
def test_readline(self):
in_iter = ['abc\n', 'd', '\nef', 'g\nh', '\nij\n\nk\n', 'trailing.']
lines = []
iter_file = utils.FileLikeIter(in_iter)
while True:
line = iter_file.readline()
if not line:
break
lines.append(line)
self.assertEquals(
lines,
[v if v == 'trailing.' else v + '\n'
for v in ''.join(in_iter).split('\n')])
def test_readline2(self):
self.assertEquals(
utils.FileLikeIter(['abc', 'def\n']).readline(4),
'abcd')
def test_readline3(self):
self.assertEquals(
utils.FileLikeIter(['a' * 1111, 'bc\ndef']).readline(),
('a' * 1111) + 'bc\n')
def test_readline_with_size(self):
in_iter = ['abc\n', 'd', '\nef', 'g\nh', '\nij\n\nk\n', 'trailing.']
lines = []
iter_file = utils.FileLikeIter(in_iter)
while True:
line = iter_file.readline(2)
if not line:
break
lines.append(line)
self.assertEquals(
lines,
['ab', 'c\n', 'd\n', 'ef', 'g\n', 'h\n', 'ij', '\n', '\n', 'k\n',
'tr', 'ai', 'li', 'ng', '.'])
def test_readlines(self):
in_iter = ['abc\n', 'd', '\nef', 'g\nh', '\nij\n\nk\n', 'trailing.']
lines = utils.FileLikeIter(in_iter).readlines()
self.assertEquals(
lines,
[v if v == 'trailing.' else v + '\n'
for v in ''.join(in_iter).split('\n')])
def test_readlines_with_size(self):
in_iter = ['abc\n', 'd', '\nef', 'g\nh', '\nij\n\nk\n', 'trailing.']
iter_file = utils.FileLikeIter(in_iter)
lists_of_lines = []
while True:
lines = iter_file.readlines(2)
if not lines:
break
lists_of_lines.append(lines)
self.assertEquals(
lists_of_lines,
[['ab'], ['c\n'], ['d\n'], ['ef'], ['g\n'], ['h\n'], ['ij'],
['\n', '\n'], ['k\n'], ['tr'], ['ai'], ['li'], ['ng'], ['.']])
def test_close(self):
iter_file = utils.FileLikeIter('abcdef')
self.assertEquals(iter_file.next(), 'a')
iter_file.close()
self.assertTrue(iter_file.closed, True)
self.assertRaises(ValueError, iter_file.next)
self.assertRaises(ValueError, iter_file.read)
self.assertRaises(ValueError, iter_file.readline)
self.assertRaises(ValueError, iter_file.readlines)
# Just make sure repeated close calls don't raise an Exception
iter_file.close()
self.assertTrue(iter_file.closed, True)
class TestStatsdLogging(unittest.TestCase):
def test_get_logger_statsd_client_not_specified(self):
logger = utils.get_logger({}, 'some-name', log_route='some-route')
# white-box construction validation
self.assertEqual(None, logger.logger.statsd_client)
def test_get_logger_statsd_client_defaults(self):
logger = utils.get_logger({'log_statsd_host': 'some.host.com'},
'some-name', log_route='some-route')
# white-box construction validation
self.assert_(isinstance(logger.logger.statsd_client,
utils.StatsdClient))
self.assertEqual(logger.logger.statsd_client._host, 'some.host.com')
self.assertEqual(logger.logger.statsd_client._port, 8125)
self.assertEqual(logger.logger.statsd_client._prefix, 'some-name.')
self.assertEqual(logger.logger.statsd_client._default_sample_rate, 1)
logger.set_statsd_prefix('some-name.more-specific')
self.assertEqual(logger.logger.statsd_client._prefix,
'some-name.more-specific.')
logger.set_statsd_prefix('')
self.assertEqual(logger.logger.statsd_client._prefix, '')
def test_get_logger_statsd_client_non_defaults(self):
logger = utils.get_logger({
'log_statsd_host': 'another.host.com',
'log_statsd_port': '9876',
'log_statsd_default_sample_rate': '0.75',
'log_statsd_sample_rate_factor': '0.81',
'log_statsd_metric_prefix': 'tomato.sauce',
}, 'some-name', log_route='some-route')
self.assertEqual(logger.logger.statsd_client._prefix,
'tomato.sauce.some-name.')
logger.set_statsd_prefix('some-name.more-specific')
self.assertEqual(logger.logger.statsd_client._prefix,
'tomato.sauce.some-name.more-specific.')
logger.set_statsd_prefix('')
self.assertEqual(logger.logger.statsd_client._prefix, 'tomato.sauce.')
self.assertEqual(logger.logger.statsd_client._host, 'another.host.com')
self.assertEqual(logger.logger.statsd_client._port, 9876)
self.assertEqual(logger.logger.statsd_client._default_sample_rate,
0.75)
self.assertEqual(logger.logger.statsd_client._sample_rate_factor,
0.81)
def test_sample_rates(self):
logger = utils.get_logger({'log_statsd_host': 'some.host.com'})
mock_socket = MockUdpSocket()
# encapsulation? what's that?
statsd_client = logger.logger.statsd_client
self.assertTrue(statsd_client.random is random.random)
statsd_client._open_socket = lambda *_: mock_socket
statsd_client.random = lambda: 0.50001
logger.increment('tribbles', sample_rate=0.5)
self.assertEqual(len(mock_socket.sent), 0)
statsd_client.random = lambda: 0.49999
logger.increment('tribbles', sample_rate=0.5)
self.assertEqual(len(mock_socket.sent), 1)
payload = mock_socket.sent[0][0]
self.assertTrue(payload.endswith("|@0.5"))
def test_sample_rates_with_sample_rate_factor(self):
logger = utils.get_logger({
'log_statsd_host': 'some.host.com',
'log_statsd_default_sample_rate': '0.82',
'log_statsd_sample_rate_factor': '0.91',
})
effective_sample_rate = 0.82 * 0.91
mock_socket = MockUdpSocket()
# encapsulation? what's that?
statsd_client = logger.logger.statsd_client
self.assertTrue(statsd_client.random is random.random)
statsd_client._open_socket = lambda *_: mock_socket
statsd_client.random = lambda: effective_sample_rate + 0.001
logger.increment('tribbles')
self.assertEqual(len(mock_socket.sent), 0)
statsd_client.random = lambda: effective_sample_rate - 0.001
logger.increment('tribbles')
self.assertEqual(len(mock_socket.sent), 1)
payload = mock_socket.sent[0][0]
self.assertTrue(payload.endswith("|@%s" % effective_sample_rate),
payload)
effective_sample_rate = 0.587 * 0.91
statsd_client.random = lambda: effective_sample_rate - 0.001
logger.increment('tribbles', sample_rate=0.587)
self.assertEqual(len(mock_socket.sent), 2)
payload = mock_socket.sent[1][0]
self.assertTrue(payload.endswith("|@%s" % effective_sample_rate),
payload)
def test_timing_stats(self):
class MockController(object):
def __init__(self, status):
self.status = status
self.logger = self
self.args = ()
self.called = 'UNKNOWN'
def timing_since(self, *args):
self.called = 'timing'
self.args = args
@utils.timing_stats()
def METHOD(controller):
return Response(status=controller.status)
mock_controller = MockController(200)
METHOD(mock_controller)
self.assertEquals(mock_controller.called, 'timing')
self.assertEquals(len(mock_controller.args), 2)
self.assertEquals(mock_controller.args[0], 'METHOD.timing')
self.assert_(mock_controller.args[1] > 0)
mock_controller = MockController(404)
METHOD(mock_controller)
self.assertEquals(len(mock_controller.args), 2)
self.assertEquals(mock_controller.called, 'timing')
self.assertEquals(mock_controller.args[0], 'METHOD.timing')
self.assert_(mock_controller.args[1] > 0)
mock_controller = MockController(401)
METHOD(mock_controller)
self.assertEquals(len(mock_controller.args), 2)
self.assertEquals(mock_controller.called, 'timing')
self.assertEquals(mock_controller.args[0], 'METHOD.errors.timing')
self.assert_(mock_controller.args[1] > 0)
class UnsafeXrange(object):
"""
Like xrange(limit), but with extra context switching to screw things up.
"""
def __init__(self, upper_bound):
self.current = 0
self.concurrent_calls = 0
self.upper_bound = upper_bound
def __iter__(self):
return self
def next(self):
if self.concurrent_calls > 0:
raise ValueError("concurrent access is bad, mmmkay? (%r)")
self.concurrent_calls += 1
try:
if self.current >= self.upper_bound:
raise StopIteration
else:
val = self.current
self.current += 1
eventlet.sleep() # yield control
return val
finally:
self.concurrent_calls -= 1
class TestAffinityKeyFunction(unittest.TestCase):
def setUp(self):
self.nodes = [dict(id=0, region=1, zone=1),
dict(id=1, region=1, zone=2),
dict(id=2, region=2, zone=1),
dict(id=3, region=2, zone=2),
dict(id=4, region=3, zone=1),
dict(id=5, region=3, zone=2),
dict(id=6, region=4, zone=0),
dict(id=7, region=4, zone=1)]
def test_single_region(self):
keyfn = utils.affinity_key_function("r3=1")
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([4, 5, 0, 1, 2, 3, 6, 7], ids)
def test_bogus_value(self):
self.assertRaises(ValueError,
utils.affinity_key_function, "r3")
self.assertRaises(ValueError,
utils.affinity_key_function, "r3=elephant")
def test_empty_value(self):
# Empty's okay, it just means no preference
keyfn = utils.affinity_key_function("")
self.assert_(callable(keyfn))
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([0, 1, 2, 3, 4, 5, 6, 7], ids)
def test_all_whitespace_value(self):
# Empty's okay, it just means no preference
keyfn = utils.affinity_key_function(" \n")
self.assert_(callable(keyfn))
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([0, 1, 2, 3, 4, 5, 6, 7], ids)
def test_with_zone_zero(self):
keyfn = utils.affinity_key_function("r4z0=1")
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([6, 0, 1, 2, 3, 4, 5, 7], ids)
def test_multiple(self):
keyfn = utils.affinity_key_function("r1=100, r4=200, r3z1=1")
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([4, 0, 1, 6, 7, 2, 3, 5], ids)
def test_more_specific_after_less_specific(self):
keyfn = utils.affinity_key_function("r2=100, r2z2=50")
ids = [n['id'] for n in sorted(self.nodes, key=keyfn)]
self.assertEqual([3, 2, 0, 1, 4, 5, 6, 7], ids)
class TestAffinityLocalityPredicate(unittest.TestCase):
def setUp(self):
self.nodes = [dict(id=0, region=1, zone=1),
dict(id=1, region=1, zone=2),
dict(id=2, region=2, zone=1),
dict(id=3, region=2, zone=2),
dict(id=4, region=3, zone=1),
dict(id=5, region=3, zone=2),
dict(id=6, region=4, zone=0),
dict(id=7, region=4, zone=1)]
def test_empty(self):
pred = utils.affinity_locality_predicate('')
self.assert_(pred is None)
def test_region(self):
pred = utils.affinity_locality_predicate('r1')
self.assert_(callable(pred))
ids = [n['id'] for n in self.nodes if pred(n)]
self.assertEqual([0, 1], ids)
def test_zone(self):
pred = utils.affinity_locality_predicate('r1z1')
self.assert_(callable(pred))
ids = [n['id'] for n in self.nodes if pred(n)]
self.assertEqual([0], ids)
def test_multiple(self):
pred = utils.affinity_locality_predicate('r1, r3, r4z0')
self.assert_(callable(pred))
ids = [n['id'] for n in self.nodes if pred(n)]
self.assertEqual([0, 1, 4, 5, 6], ids)
def test_invalid(self):
self.assertRaises(ValueError,
utils.affinity_locality_predicate, 'falafel')
self.assertRaises(ValueError,
utils.affinity_locality_predicate, 'r8zQ')
self.assertRaises(ValueError,
utils.affinity_locality_predicate, 'r2d2')
self.assertRaises(ValueError,
utils.affinity_locality_predicate, 'r1z1=1')
class TestGreenthreadSafeIterator(unittest.TestCase):
def increment(self, iterable):
plus_ones = []
for n in iterable:
plus_ones.append(n + 1)
return plus_ones
def test_setup_works(self):
# it should work without concurrent access
self.assertEquals([0, 1, 2, 3], list(UnsafeXrange(4)))
iterable = UnsafeXrange(10)
pile = eventlet.GreenPile(2)
for _ in xrange(2):
pile.spawn(self.increment, iterable)
try:
sorted([resp for resp in pile])
self.assertTrue(False, "test setup is insufficiently crazy")
except ValueError:
pass
def test_access_is_serialized(self):
pile = eventlet.GreenPile(2)
iterable = utils.GreenthreadSafeIterator(UnsafeXrange(10))
for _ in xrange(2):
pile.spawn(self.increment, iterable)
response = sorted(sum([resp for resp in pile], []))
self.assertEquals(range(1, 11), response)
class TestStatsdLoggingDelegation(unittest.TestCase):
def setUp(self):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.bind(('localhost', 0))
self.port = self.sock.getsockname()[1]
self.queue = Queue()
self.reader_thread = threading.Thread(target=self.statsd_reader)
self.reader_thread.setDaemon(1)
self.reader_thread.start()
def tearDown(self):
# The "no-op when disabled" test doesn't set up a real logger, so
# create one here so we can tell the reader thread to stop.
if not getattr(self, 'logger', None):
self.logger = utils.get_logger({
'log_statsd_host': 'localhost',
'log_statsd_port': str(self.port),
}, 'some-name')
self.logger.increment('STOP')
self.reader_thread.join(timeout=4)
self.sock.close()
del self.logger
def statsd_reader(self):
while True:
try:
payload = self.sock.recv(4096)
if payload and 'STOP' in payload:
return 42
self.queue.put(payload)
except Exception, e:
sys.stderr.write('statsd_reader thread: %r' % (e,))
break
def _send_and_get(self, sender_fn, *args, **kwargs):
"""
Because the client library may not actually send a packet with
sample_rate < 1, we keep trying until we get one through.
"""
got = None
while not got:
sender_fn(*args, **kwargs)
try:
got = self.queue.get(timeout=0.5)
except Empty:
pass
return got
def assertStat(self, expected, sender_fn, *args, **kwargs):
got = self._send_and_get(sender_fn, *args, **kwargs)
return self.assertEqual(expected, got)
def assertStatMatches(self, expected_regexp, sender_fn, *args, **kwargs):
got = self._send_and_get(sender_fn, *args, **kwargs)
return self.assert_(re.search(expected_regexp, got),
[got, expected_regexp])
def test_methods_are_no_ops_when_not_enabled(self):
logger = utils.get_logger({
# No "log_statsd_host" means "disabled"
'log_statsd_port': str(self.port),
}, 'some-name')
# Delegate methods are no-ops
self.assertEqual(None, logger.update_stats('foo', 88))
self.assertEqual(None, logger.update_stats('foo', 88, 0.57))
self.assertEqual(None, logger.update_stats('foo', 88,
sample_rate=0.61))
self.assertEqual(None, logger.increment('foo'))
self.assertEqual(None, logger.increment('foo', 0.57))
self.assertEqual(None, logger.increment('foo', sample_rate=0.61))
self.assertEqual(None, logger.decrement('foo'))
self.assertEqual(None, logger.decrement('foo', 0.57))
self.assertEqual(None, logger.decrement('foo', sample_rate=0.61))
self.assertEqual(None, logger.timing('foo', 88.048))
self.assertEqual(None, logger.timing('foo', 88.57, 0.34))
self.assertEqual(None, logger.timing('foo', 88.998, sample_rate=0.82))
self.assertEqual(None, logger.timing_since('foo', 8938))
self.assertEqual(None, logger.timing_since('foo', 8948, 0.57))
self.assertEqual(None, logger.timing_since('foo', 849398,
sample_rate=0.61))
# Now, the queue should be empty (no UDP packets sent)
self.assertRaises(Empty, self.queue.get_nowait)
def test_delegate_methods_with_no_default_sample_rate(self):
self.logger = utils.get_logger({
'log_statsd_host': 'localhost',
'log_statsd_port': str(self.port),
}, 'some-name')
self.assertStat('some-name.some.counter:1|c', self.logger.increment,
'some.counter')
self.assertStat('some-name.some.counter:-1|c', self.logger.decrement,
'some.counter')
self.assertStat('some-name.some.operation:4900.0|ms',
self.logger.timing, 'some.operation', 4.9 * 1000)
self.assertStatMatches('some-name\.another\.operation:\d+\.\d+\|ms',
self.logger.timing_since, 'another.operation',
time.time())
self.assertStat('some-name.another.counter:42|c',
self.logger.update_stats, 'another.counter', 42)
# Each call can override the sample_rate (also, bonus prefix test)
self.logger.set_statsd_prefix('pfx')
self.assertStat('pfx.some.counter:1|c|@0.972', self.logger.increment,
'some.counter', sample_rate=0.972)
self.assertStat('pfx.some.counter:-1|c|@0.972', self.logger.decrement,
'some.counter', sample_rate=0.972)
self.assertStat('pfx.some.operation:4900.0|ms|@0.972',
self.logger.timing, 'some.operation', 4.9 * 1000,
sample_rate=0.972)
self.assertStatMatches('pfx\.another\.op:\d+\.\d+\|ms|@0.972',
self.logger.timing_since, 'another.op',
time.time(), sample_rate=0.972)
self.assertStat('pfx.another.counter:3|c|@0.972',
self.logger.update_stats, 'another.counter', 3,
sample_rate=0.972)
# Can override sample_rate with non-keyword arg
self.logger.set_statsd_prefix('')
self.assertStat('some.counter:1|c|@0.939', self.logger.increment,
'some.counter', 0.939)
self.assertStat('some.counter:-1|c|@0.939', self.logger.decrement,
'some.counter', 0.939)
self.assertStat('some.operation:4900.0|ms|@0.939',
self.logger.timing, 'some.operation',
4.9 * 1000, 0.939)
self.assertStatMatches('another\.op:\d+\.\d+\|ms|@0.939',
self.logger.timing_since, 'another.op',
time.time(), 0.939)
self.assertStat('another.counter:3|c|@0.939',
self.logger.update_stats, 'another.counter', 3, 0.939)
def test_delegate_methods_with_default_sample_rate(self):
self.logger = utils.get_logger({
'log_statsd_host': 'localhost',
'log_statsd_port': str(self.port),
'log_statsd_default_sample_rate': '0.93',
}, 'pfx')
self.assertStat('pfx.some.counter:1|c|@0.93', self.logger.increment,
'some.counter')
self.assertStat('pfx.some.counter:-1|c|@0.93', self.logger.decrement,
'some.counter')
self.assertStat('pfx.some.operation:4760.0|ms|@0.93',
self.logger.timing, 'some.operation', 4.76 * 1000)
self.assertStatMatches('pfx\.another\.op:\d+\.\d+\|ms|@0.93',
self.logger.timing_since, 'another.op',
time.time())
self.assertStat('pfx.another.counter:3|c|@0.93',
self.logger.update_stats, 'another.counter', 3)
# Each call can override the sample_rate
self.assertStat('pfx.some.counter:1|c|@0.9912', self.logger.increment,
'some.counter', sample_rate=0.9912)
self.assertStat('pfx.some.counter:-1|c|@0.9912', self.logger.decrement,
'some.counter', sample_rate=0.9912)
self.assertStat('pfx.some.operation:4900.0|ms|@0.9912',
self.logger.timing, 'some.operation', 4.9 * 1000,
sample_rate=0.9912)
self.assertStatMatches('pfx\.another\.op:\d+\.\d+\|ms|@0.9912',
self.logger.timing_since, 'another.op',
time.time(), sample_rate=0.9912)
self.assertStat('pfx.another.counter:3|c|@0.9912',
self.logger.update_stats, 'another.counter', 3,
sample_rate=0.9912)
# Can override sample_rate with non-keyword arg
self.logger.set_statsd_prefix('')
self.assertStat('some.counter:1|c|@0.987654', self.logger.increment,
'some.counter', 0.987654)
self.assertStat('some.counter:-1|c|@0.987654', self.logger.decrement,
'some.counter', 0.987654)
self.assertStat('some.operation:4900.0|ms|@0.987654',
self.logger.timing, 'some.operation',
4.9 * 1000, 0.987654)
self.assertStatMatches('another\.op:\d+\.\d+\|ms|@0.987654',
self.logger.timing_since, 'another.op',
time.time(), 0.987654)
self.assertStat('another.counter:3|c|@0.987654',
self.logger.update_stats, 'another.counter',
3, 0.987654)
def test_delegate_methods_with_metric_prefix(self):
self.logger = utils.get_logger({
'log_statsd_host': 'localhost',
'log_statsd_port': str(self.port),
'log_statsd_metric_prefix': 'alpha.beta',
}, 'pfx')
self.assertStat('alpha.beta.pfx.some.counter:1|c',
self.logger.increment, 'some.counter')
self.assertStat('alpha.beta.pfx.some.counter:-1|c',
self.logger.decrement, 'some.counter')
self.assertStat('alpha.beta.pfx.some.operation:4760.0|ms',
self.logger.timing, 'some.operation', 4.76 * 1000)
self.assertStatMatches(
'alpha\.beta\.pfx\.another\.op:\d+\.\d+\|ms',
self.logger.timing_since, 'another.op', time.time())
self.assertStat('alpha.beta.pfx.another.counter:3|c',
self.logger.update_stats, 'another.counter', 3)
self.logger.set_statsd_prefix('')
self.assertStat('alpha.beta.some.counter:1|c|@0.9912',
self.logger.increment, 'some.counter',
sample_rate=0.9912)
self.assertStat('alpha.beta.some.counter:-1|c|@0.9912',
self.logger.decrement, 'some.counter', 0.9912)
self.assertStat('alpha.beta.some.operation:4900.0|ms|@0.9912',
self.logger.timing, 'some.operation', 4.9 * 1000,
sample_rate=0.9912)
self.assertStatMatches('alpha\.beta\.another\.op:\d+\.\d+\|ms|@0.9912',
self.logger.timing_since, 'another.op',
time.time(), sample_rate=0.9912)
self.assertStat('alpha.beta.another.counter:3|c|@0.9912',
self.logger.update_stats, 'another.counter', 3,
sample_rate=0.9912)
def test_get_valid_utf8_str(self):
unicode_sample = u'\uc77c\uc601'
valid_utf8_str = unicode_sample.encode('utf-8')
invalid_utf8_str = unicode_sample.encode('utf-8')[::-1]
self.assertEquals(valid_utf8_str,
utils.get_valid_utf8_str(valid_utf8_str))
self.assertEquals(valid_utf8_str,
utils.get_valid_utf8_str(unicode_sample))
self.assertEquals('\xef\xbf\xbd\xef\xbf\xbd\xec\xbc\x9d\xef\xbf\xbd',
utils.get_valid_utf8_str(invalid_utf8_str))
def test_thread_locals(self):
logger = utils.get_logger(None)
orig_thread_locals = logger.thread_locals
try:
self.assertEquals(logger.thread_locals, (None, None))
logger.txn_id = '1234'
logger.client_ip = '1.2.3.4'
self.assertEquals(logger.thread_locals, ('1234', '1.2.3.4'))
logger.txn_id = '5678'
logger.client_ip = '5.6.7.8'
self.assertEquals(logger.thread_locals, ('5678', '5.6.7.8'))
finally:
logger.thread_locals = orig_thread_locals
def test_no_fdatasync(self):
called = []
class NoFdatasync:
pass
def fsync(fd):
called.append(fd)
with patch('swift.common.utils.os', NoFdatasync()):
with patch('swift.common.utils.fsync', fsync):
utils.fdatasync(12345)
self.assertEquals(called, [12345])
def test_yes_fdatasync(self):
called = []
class YesFdatasync:
def fdatasync(self, fd):
called.append(fd)
with patch('swift.common.utils.os', YesFdatasync()):
utils.fdatasync(12345)
self.assertEquals(called, [12345])
def test_fsync_bad_fullsync(self):
class FCNTL:
F_FULLSYNC = 123
def fcntl(self, fd, op):
raise IOError(18)
with patch('swift.common.utils.fcntl', FCNTL()):
self.assertRaises(OSError, lambda: utils.fsync(12345))
def test_fsync_f_fullsync(self):
called = []
class FCNTL:
F_FULLSYNC = 123
def fcntl(self, fd, op):
called[:] = [fd, op]
return 0
with patch('swift.common.utils.fcntl', FCNTL()):
utils.fsync(12345)
self.assertEquals(called, [12345, 123])
def test_fsync_no_fullsync(self):
called = []
class FCNTL:
pass
def fsync(fd):
called.append(fd)
with patch('swift.common.utils.fcntl', FCNTL()):
with patch('os.fsync', fsync):
utils.fsync(12345)
self.assertEquals(called, [12345])
class TestThreadpool(unittest.TestCase):
def _thread_id(self):
return threading.current_thread().ident
def _capture_args(self, *args, **kwargs):
return {'args': args, 'kwargs': kwargs}
def _raise_valueerror(self):
return int('fishcakes')
def test_run_in_thread_with_threads(self):
tp = utils.ThreadPool(1)
my_id = self._thread_id()
other_id = tp.run_in_thread(self._thread_id)
self.assertNotEquals(my_id, other_id)
result = tp.run_in_thread(self._capture_args, 1, 2, bert='ernie')
self.assertEquals(result, {'args': (1, 2),
'kwargs': {'bert': 'ernie'}})
caught = False
try:
tp.run_in_thread(self._raise_valueerror)
except ValueError:
caught = True
self.assertTrue(caught)
def test_force_run_in_thread_with_threads(self):
# with nthreads > 0, force_run_in_thread looks just like run_in_thread
tp = utils.ThreadPool(1)
my_id = self._thread_id()
other_id = tp.force_run_in_thread(self._thread_id)
self.assertNotEquals(my_id, other_id)
result = tp.force_run_in_thread(self._capture_args, 1, 2, bert='ernie')
self.assertEquals(result, {'args': (1, 2),
'kwargs': {'bert': 'ernie'}})
caught = False
try:
tp.force_run_in_thread(self._raise_valueerror)
except ValueError:
caught = True
self.assertTrue(caught)
def test_run_in_thread_without_threads(self):
# with zero threads, run_in_thread doesn't actually do so
tp = utils.ThreadPool(0)
my_id = self._thread_id()
other_id = tp.run_in_thread(self._thread_id)
self.assertEquals(my_id, other_id)
result = tp.run_in_thread(self._capture_args, 1, 2, bert='ernie')
self.assertEquals(result, {'args': (1, 2),
'kwargs': {'bert': 'ernie'}})
caught = False
try:
tp.run_in_thread(self._raise_valueerror)
except ValueError:
caught = True
self.assertTrue(caught)
def test_force_run_in_thread_without_threads(self):
# with zero threads, force_run_in_thread uses eventlet.tpool
tp = utils.ThreadPool(0)
my_id = self._thread_id()
other_id = tp.force_run_in_thread(self._thread_id)
self.assertNotEquals(my_id, other_id)
result = tp.force_run_in_thread(self._capture_args, 1, 2, bert='ernie')
self.assertEquals(result, {'args': (1, 2),
'kwargs': {'bert': 'ernie'}})
caught = False
try:
tp.force_run_in_thread(self._raise_valueerror)
except ValueError:
caught = True
self.assertTrue(caught)
if __name__ == '__main__':
unittest.main()