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78fad47cb3
mirror_zfs/tests/test-runner/bin/test-runner.py.in
Damian Szuberski 78fad47cb3
Add Linux kmemleak support to ZTS 
- Kmemleak `clear` is invoked right before every test case run.
- Kmemleak `scan` is requested right after each test case is finished.
- Kmemleak instrumentation is not used for
  setup/cleanup/pretest/posttest/failsafe stages to shorten the test
  case execution time.
- Kmemleak periodic scan is disabled (`scan=0`) before the test suite
  run to avoid interfering with the on-demand scan results.
- There are unavoidable potential false positives coming from kernel
  areas other than OpenZFS module.
- The ZTS with kmemleak enabled duration is increased by ~50%.

Example run
```
Running Time:   07:12:13
Percent passed: 98.3%

unreferenced object 0xffff9da82aea5410 (size 80):
  comm "kworker/u32:10", pid 942206, jiffies 4296749716 (age 2615.516s)
  hex dump (first 32 bytes):
    00 30 30 00 00 00 00 00 ff 8f 30 00 00 00 00 00  .00.......0.....
    51 e6 77 05 a8 9d ff ff 00 00 00 00 00 00 00 00  Q.w.............
  backtrace:
    [<000000005cf1fea2>] alloc_extent_state+0x1d/0xb0 [btrfs]
    [<0000000083f78ae5>] set_extent_bit+0x2ff/0x670 [btrfs]
    [<00000000de29249e>] lock_extent_bits+0x6b/0xa0 [btrfs]
    [<00000000b241f424>] lock_and_cleanup_extent_if_need+0xaf/0x1c0
       [btrfs]
    [<0000000093ca72b5>] btrfs_buffered_write+0x297/0x7d0 [btrfs]
    [<000000002c2938c8>] btrfs_file_write_iter+0x127/0x390 [btrfs]
    [<00000000b888f720>] do_iter_readv_writev+0x152/0x1b0
    [<00000000320f0bcc>] do_iter_write+0x7c/0x1c0
    [<000000000b5a8fe0>] lo_write_bvec+0x62/0x150 [loop]
    [<000000009aa03c73>] loop_process_work+0x250/0xbd0 [loop]
    [<00000000c7487d8a>] process_one_work+0x1f1/0x390
    [<000000000b236831>] worker_thread+0x53/0x3e0
    [<0000000023cb3e57>] kthread+0x127/0x150
    [<000000002d48676a>] ret_from_fork+0x22/0x30
```

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #13084
2022-02-24 10:21:13 -08:00

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#!/usr/bin/env @PYTHON_SHEBANG@
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2012, 2018 by Delphix. All rights reserved.
# Copyright (c) 2019 Datto Inc.
#
# This script must remain compatible with Python 3.6+.
#
import os
import sys
import ctypes
import re
import configparser
from datetime import datetime
from optparse import OptionParser
from pwd import getpwnam
from pwd import getpwuid
from select import select
from subprocess import PIPE
from subprocess import Popen
from subprocess import check_output
from threading import Timer
from time import time, CLOCK_MONOTONIC
BASEDIR = '/var/tmp/test_results'
TESTDIR = '/usr/share/zfs/'
KMEMLEAK_FILE = '/sys/kernel/debug/kmemleak'
KILL = 'kill'
TRUE = 'true'
SUDO = 'sudo'
LOG_FILE = 'LOG_FILE'
LOG_OUT = 'LOG_OUT'
LOG_ERR = 'LOG_ERR'
LOG_FILE_OBJ = None
class timespec(ctypes.Structure):
_fields_ = [
('tv_sec', ctypes.c_long),
('tv_nsec', ctypes.c_long)
]
librt = ctypes.CDLL('librt.so.1', use_errno=True)
clock_gettime = librt.clock_gettime
clock_gettime.argtypes = [ctypes.c_int, ctypes.POINTER(timespec)]
def monotonic_time():
t = timespec()
if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(t)) != 0:
errno_ = ctypes.get_errno()
raise OSError(errno_, os.strerror(errno_))
return t.tv_sec + t.tv_nsec * 1e-9
class Result(object):
total = 0
runresults = {'PASS': 0, 'FAIL': 0, 'SKIP': 0, 'KILLED': 0, 'RERAN': 0}
def __init__(self):
self.starttime = None
self.returncode = None
self.runtime = ''
self.stdout = []
self.stderr = []
self.kmemleak = ''
self.result = ''
def done(self, proc, killed, reran):
"""
Finalize the results of this Cmd.
"""
Result.total += 1
m, s = divmod(monotonic_time() - self.starttime, 60)
self.runtime = '%02d:%02d' % (m, s)
self.returncode = proc.returncode
if reran is True:
Result.runresults['RERAN'] += 1
if killed:
self.result = 'KILLED'
Result.runresults['KILLED'] += 1
elif len(self.kmemleak) > 0:
self.result = 'FAIL'
Result.runresults['FAIL'] += 1
elif self.returncode == 0:
self.result = 'PASS'
Result.runresults['PASS'] += 1
elif self.returncode == 4:
self.result = 'SKIP'
Result.runresults['SKIP'] += 1
elif self.returncode != 0:
self.result = 'FAIL'
Result.runresults['FAIL'] += 1
class Output(object):
"""
This class is a slightly modified version of the 'Stream' class found
here: http://goo.gl/aSGfv
"""
def __init__(self, stream):
self.stream = stream
self._buf = b''
self.lines = []
def fileno(self):
return self.stream.fileno()
def read(self, drain=0):
"""
Read from the file descriptor. If 'drain' set, read until EOF.
"""
while self._read() is not None:
if not drain:
break
def _read(self):
"""
Read up to 4k of data from this output stream. Collect the output
up to the last newline, and append it to any leftover data from a
previous call. The lines are stored as a (timestamp, data) tuple
for easy sorting/merging later.
"""
fd = self.fileno()
buf = os.read(fd, 4096)
if not buf:
return None
if b'\n' not in buf:
self._buf += buf
return []
buf = self._buf + buf
tmp, rest = buf.rsplit(b'\n', 1)
self._buf = rest
now = datetime.now()
rows = tmp.split(b'\n')
self.lines += [(now, r) for r in rows]
class Cmd(object):
verified_users = []
def __init__(self, pathname, identifier=None, outputdir=None,
timeout=None, user=None, tags=None):
self.pathname = pathname
self.identifier = identifier
self.outputdir = outputdir or 'BASEDIR'
"""
The timeout for tests is measured in wall-clock time
"""
self.timeout = timeout
self.user = user or ''
self.killed = False
self.reran = None
self.result = Result()
if self.timeout is None:
self.timeout = 60
def __str__(self):
return '''\
Pathname: %s
Identifier: %s
Outputdir: %s
Timeout: %d
User: %s
''' % (self.pathname, self.identifier, self.outputdir, self.timeout, self.user)
def kill_cmd(self, proc, keyboard_interrupt=False):
"""
Kill a running command due to timeout, or ^C from the keyboard. If
sudo is required, this user was verified previously.
"""
self.killed = True
do_sudo = len(self.user) != 0
signal = '-TERM'
cmd = [SUDO, KILL, signal, str(proc.pid)]
if not do_sudo:
del cmd[0]
try:
kp = Popen(cmd)
kp.wait()
except Exception:
pass
"""
If this is not a user-initiated kill and the test has not been
reran before we consider if the test needs to be reran:
If the test has spent some time hibernating and didn't run the whole
length of time before being timed out we will rerun the test.
"""
if keyboard_interrupt is False and self.reran is None:
runtime = monotonic_time() - self.result.starttime
if int(self.timeout) > runtime:
self.killed = False
self.reran = False
self.run(False)
self.reran = True
def update_cmd_privs(self, cmd, user):
"""
If a user has been specified to run this Cmd and we're not already
running as that user, prepend the appropriate sudo command to run
as that user.
"""
me = getpwuid(os.getuid())
if not user or user is me:
if os.path.isfile(cmd+'.ksh') and os.access(cmd+'.ksh', os.X_OK):
cmd += '.ksh'
if os.path.isfile(cmd+'.sh') and os.access(cmd+'.sh', os.X_OK):
cmd += '.sh'
return cmd
if not os.path.isfile(cmd):
if os.path.isfile(cmd+'.ksh') and os.access(cmd+'.ksh', os.X_OK):
cmd += '.ksh'
if os.path.isfile(cmd+'.sh') and os.access(cmd+'.sh', os.X_OK):
cmd += '.sh'
ret = '%s -E -u %s %s' % (SUDO, user, cmd)
return ret.split(' ')
def collect_output(self, proc):
"""
Read from stdout/stderr as data becomes available, until the
process is no longer running. Return the lines from the stdout and
stderr Output objects.
"""
out = Output(proc.stdout)
err = Output(proc.stderr)
res = []
while proc.returncode is None:
proc.poll()
res = select([out, err], [], [], .1)
for fd in res[0]:
fd.read()
for fd in res[0]:
fd.read(drain=1)
return out.lines, err.lines
def run(self, dryrun, kmemleak):
"""
This is the main function that runs each individual test.
Determine whether or not the command requires sudo, and modify it
if needed. Run the command, and update the result object.
"""
if dryrun is True:
print(self)
return
privcmd = self.update_cmd_privs(self.pathname, self.user)
try:
old = os.umask(0)
if not os.path.isdir(self.outputdir):
os.makedirs(self.outputdir, mode=0o777)
os.umask(old)
except OSError as e:
fail('%s' % e)
self.result.starttime = monotonic_time()
if kmemleak:
cmd = f'echo clear | {SUDO} tee {KMEMLEAK_FILE}'
check_output(cmd, shell=True)
proc = Popen(privcmd, stdout=PIPE, stderr=PIPE)
# Allow a special timeout value of 0 to mean infinity
if int(self.timeout) == 0:
self.timeout = sys.maxsize
t = Timer(int(self.timeout), self.kill_cmd, [proc])
try:
t.start()
self.result.stdout, self.result.stderr = self.collect_output(proc)
if kmemleak:
cmd = f'echo scan | {SUDO} tee {KMEMLEAK_FILE}'
check_output(cmd, shell=True)
cmd = f'{SUDO} cat {KMEMLEAK_FILE}'
self.result.kmemleak = check_output(cmd, shell=True)
except KeyboardInterrupt:
self.kill_cmd(proc, True)
fail('\nRun terminated at user request.')
finally:
t.cancel()
if self.reran is not False:
self.result.done(proc, self.killed, self.reran)
def skip(self):
"""
Initialize enough of the test result that we can log a skipped
command.
"""
Result.total += 1
Result.runresults['SKIP'] += 1
self.result.stdout = self.result.stderr = []
self.result.starttime = monotonic_time()
m, s = divmod(monotonic_time() - self.result.starttime, 60)
self.result.runtime = '%02d:%02d' % (m, s)
self.result.result = 'SKIP'
def log(self, options, suppress_console=False):
"""
This function is responsible for writing all output. This includes
the console output, the logfile of all results (with timestamped
merged stdout and stderr), and for each test, the unmodified
stdout/stderr/merged in its own file.
"""
logname = getpwuid(os.getuid()).pw_name
rer = ''
if self.reran is True:
rer = ' (RERAN)'
user = ' (run as %s)' % (self.user if len(self.user) else logname)
if self.identifier:
msga = 'Test (%s): %s%s ' % (self.identifier, self.pathname, user)
else:
msga = 'Test: %s%s ' % (self.pathname, user)
msgb = '[%s] [%s]%s\n' % (self.result.runtime, self.result.result, rer)
pad = ' ' * (80 - (len(msga) + len(msgb)))
result_line = msga + pad + msgb
# The result line is always written to the log file. If -q was
# specified only failures are written to the console, otherwise
# the result line is written to the console. The console output
# may be suppressed by calling log() with suppress_console=True.
write_log(bytearray(result_line, encoding='utf-8'), LOG_FILE)
if not suppress_console:
if not options.quiet:
write_log(result_line, LOG_OUT)
elif options.quiet and self.result.result != 'PASS':
write_log(result_line, LOG_OUT)
lines = sorted(self.result.stdout + self.result.stderr,
key=lambda x: x[0])
# Write timestamped output (stdout and stderr) to the logfile
for dt, line in lines:
timestamp = bytearray(dt.strftime("%H:%M:%S.%f ")[:11],
encoding='utf-8')
write_log(b'%s %s\n' % (timestamp, line), LOG_FILE)
# Write the separate stdout/stderr/merged files, if the data exists
if len(self.result.stdout):
with open(os.path.join(self.outputdir, 'stdout'), 'wb') as out:
for _, line in self.result.stdout:
os.write(out.fileno(), b'%s\n' % line)
if len(self.result.stderr):
with open(os.path.join(self.outputdir, 'stderr'), 'wb') as err:
for _, line in self.result.stderr:
os.write(err.fileno(), b'%s\n' % line)
if len(self.result.stdout) and len(self.result.stderr):
with open(os.path.join(self.outputdir, 'merged'), 'wb') as merged:
for _, line in lines:
os.write(merged.fileno(), b'%s\n' % line)
if len(self.result.kmemleak):
with open(os.path.join(self.outputdir, 'kmemleak'), 'wb') as kmem:
kmem.write(self.result.kmemleak)
class Test(Cmd):
props = ['outputdir', 'timeout', 'user', 'pre', 'pre_user', 'post',
'post_user', 'failsafe', 'failsafe_user', 'tags']
def __init__(self, pathname,
pre=None, pre_user=None, post=None, post_user=None,
failsafe=None, failsafe_user=None, tags=None, **kwargs):
super(Test, self).__init__(pathname, **kwargs)
self.pre = pre or ''
self.pre_user = pre_user or ''
self.post = post or ''
self.post_user = post_user or ''
self.failsafe = failsafe or ''
self.failsafe_user = failsafe_user or ''
self.tags = tags or []
def __str__(self):
post_user = pre_user = failsafe_user = ''
if len(self.pre_user):
pre_user = ' (as %s)' % (self.pre_user)
if len(self.post_user):
post_user = ' (as %s)' % (self.post_user)
if len(self.failsafe_user):
failsafe_user = ' (as %s)' % (self.failsafe_user)
return '''\
Pathname: %s
Identifier: %s
Outputdir: %s
Timeout: %d
User: %s
Pre: %s%s
Post: %s%s
Failsafe: %s%s
Tags: %s
''' % (self.pathname, self.identifier, self.outputdir, self.timeout, self.user,
self.pre, pre_user, self.post, post_user, self.failsafe,
failsafe_user, self.tags)
def verify(self):
"""
Check the pre/post/failsafe scripts, user and Test. Omit the Test from
this run if there are any problems.
"""
files = [self.pre, self.pathname, self.post, self.failsafe]
users = [self.pre_user, self.user, self.post_user, self.failsafe_user]
for f in [f for f in files if len(f)]:
if not verify_file(f):
write_log("Warning: Test '%s' not added to this run because"
" it failed verification.\n" % f, LOG_ERR)
return False
for user in [user for user in users if len(user)]:
if not verify_user(user):
write_log("Not adding Test '%s' to this run.\n" %
self.pathname, LOG_ERR)
return False
return True
def run(self, options):
"""
Create Cmd instances for the pre/post/failsafe scripts. If the pre
script doesn't pass, skip this Test. Run the post script regardless.
If the Test is killed, also run the failsafe script.
"""
odir = os.path.join(self.outputdir, os.path.basename(self.pre))
pretest = Cmd(self.pre, identifier=self.identifier, outputdir=odir,
timeout=self.timeout, user=self.pre_user)
test = Cmd(self.pathname, identifier=self.identifier,
outputdir=self.outputdir, timeout=self.timeout,
user=self.user)
odir = os.path.join(self.outputdir, os.path.basename(self.failsafe))
failsafe = Cmd(self.failsafe, identifier=self.identifier,
outputdir=odir, timeout=self.timeout,
user=self.failsafe_user)
odir = os.path.join(self.outputdir, os.path.basename(self.post))
posttest = Cmd(self.post, identifier=self.identifier, outputdir=odir,
timeout=self.timeout, user=self.post_user)
cont = True
if len(pretest.pathname):
pretest.run(options.dryrun, False)
cont = pretest.result.result == 'PASS'
pretest.log(options)
if cont:
test.run(options.dryrun, options.kmemleak)
if test.result.result == 'KILLED' and len(failsafe.pathname):
failsafe.run(options.dryrun, False)
failsafe.log(options, suppress_console=True)
else:
test.skip()
test.log(options)
if len(posttest.pathname):
posttest.run(options.dryrun, False)
posttest.log(options)
class TestGroup(Test):
props = Test.props + ['tests']
def __init__(self, pathname, tests=None, **kwargs):
super(TestGroup, self).__init__(pathname, **kwargs)
self.tests = tests or []
def __str__(self):
post_user = pre_user = failsafe_user = ''
if len(self.pre_user):
pre_user = ' (as %s)' % (self.pre_user)
if len(self.post_user):
post_user = ' (as %s)' % (self.post_user)
if len(self.failsafe_user):
failsafe_user = ' (as %s)' % (self.failsafe_user)
return '''\
Pathname: %s
Identifier: %s
Outputdir: %s
Tests: %s
Timeout: %s
User: %s
Pre: %s%s
Post: %s%s
Failsafe: %s%s
Tags: %s
''' % (self.pathname, self.identifier, self.outputdir, self.tests,
self.timeout, self.user, self.pre, pre_user, self.post, post_user,
self.failsafe, failsafe_user, self.tags)
def filter(self, keeplist):
self.tests = [x for x in self.tests if x in keeplist]
def verify(self):
"""
Check the pre/post/failsafe scripts, user and tests in this TestGroup.
Omit the TestGroup entirely, or simply delete the relevant tests in the
group, if that's all that's required.
"""
# If the pre/post/failsafe scripts are relative pathnames, convert to
# absolute, so they stand a chance of passing verification.
if len(self.pre) and not os.path.isabs(self.pre):
self.pre = os.path.join(self.pathname, self.pre)
if len(self.post) and not os.path.isabs(self.post):
self.post = os.path.join(self.pathname, self.post)
if len(self.failsafe) and not os.path.isabs(self.failsafe):
self.post = os.path.join(self.pathname, self.post)
auxfiles = [self.pre, self.post, self.failsafe]
users = [self.pre_user, self.user, self.post_user, self.failsafe_user]
for f in [f for f in auxfiles if len(f)]:
if f != self.failsafe and self.pathname != os.path.dirname(f):
write_log("Warning: TestGroup '%s' not added to this run. "
"Auxiliary script '%s' exists in a different "
"directory.\n" % (self.pathname, f), LOG_ERR)
return False
if not verify_file(f):
write_log("Warning: TestGroup '%s' not added to this run. "
"Auxiliary script '%s' failed verification.\n" %
(self.pathname, f), LOG_ERR)
return False
for user in [user for user in users if len(user)]:
if not verify_user(user):
write_log("Not adding TestGroup '%s' to this run.\n" %
self.pathname, LOG_ERR)
return False
# If one of the tests is invalid, delete it, log it, and drive on.
for test in self.tests:
if not verify_file(os.path.join(self.pathname, test)):
del self.tests[self.tests.index(test)]
write_log("Warning: Test '%s' removed from TestGroup '%s' "
"because it failed verification.\n" %
(test, self.pathname), LOG_ERR)
return len(self.tests) != 0
def run(self, options):
"""
Create Cmd instances for the pre/post/failsafe scripts. If the pre
script doesn't pass, skip all the tests in this TestGroup. Run the
post script regardless. Run the failsafe script when a test is killed.
"""
# tags assigned to this test group also include the test names
if options.tags and not set(self.tags).intersection(set(options.tags)):
return
odir = os.path.join(self.outputdir, os.path.basename(self.pre))
pretest = Cmd(self.pre, outputdir=odir, timeout=self.timeout,
user=self.pre_user, identifier=self.identifier)
odir = os.path.join(self.outputdir, os.path.basename(self.post))
posttest = Cmd(self.post, outputdir=odir, timeout=self.timeout,
user=self.post_user, identifier=self.identifier)
cont = True
if len(pretest.pathname):
pretest.run(options.dryrun, False)
cont = pretest.result.result == 'PASS'
pretest.log(options)
for fname in self.tests:
odir = os.path.join(self.outputdir, fname)
test = Cmd(os.path.join(self.pathname, fname), outputdir=odir,
timeout=self.timeout, user=self.user,
identifier=self.identifier)
odir = os.path.join(odir, os.path.basename(self.failsafe))
failsafe = Cmd(self.failsafe, outputdir=odir, timeout=self.timeout,
user=self.failsafe_user, identifier=self.identifier)
if cont:
test.run(options.dryrun, options.kmemleak)
if test.result.result == 'KILLED' and len(failsafe.pathname):
failsafe.run(options.dryrun, False)
failsafe.log(options, suppress_console=True)
else:
test.skip()
test.log(options)
if len(posttest.pathname):
posttest.run(options.dryrun, False)
posttest.log(options)
class TestRun(object):
props = ['quiet', 'outputdir']
def __init__(self, options):
self.tests = {}
self.testgroups = {}
self.starttime = time()
self.timestamp = datetime.now().strftime('%Y%m%dT%H%M%S')
self.outputdir = os.path.join(options.outputdir, self.timestamp)
self.setup_logging(options)
self.defaults = [
('outputdir', BASEDIR),
('quiet', False),
('timeout', 60),
('user', ''),
('pre', ''),
('pre_user', ''),
('post', ''),
('post_user', ''),
('failsafe', ''),
('failsafe_user', ''),
('tags', [])
]
def __str__(self):
s = 'TestRun:\n outputdir: %s\n' % self.outputdir
s += 'TESTS:\n'
for key in sorted(self.tests.keys()):
s += '%s%s' % (self.tests[key].__str__(), '\n')
s += 'TESTGROUPS:\n'
for key in sorted(self.testgroups.keys()):
s += '%s%s' % (self.testgroups[key].__str__(), '\n')
return s
def addtest(self, pathname, options):
"""
Create a new Test, and apply any properties that were passed in
from the command line. If it passes verification, add it to the
TestRun.
"""
test = Test(pathname)
for prop in Test.props:
setattr(test, prop, getattr(options, prop))
if test.verify():
self.tests[pathname] = test
def addtestgroup(self, dirname, filenames, options):
"""
Create a new TestGroup, and apply any properties that were passed
in from the command line. If it passes verification, add it to the
TestRun.
"""
if dirname not in self.testgroups:
testgroup = TestGroup(dirname)
for prop in Test.props:
setattr(testgroup, prop, getattr(options, prop))
# Prevent pre/post/failsafe scripts from running as regular tests
for f in [testgroup.pre, testgroup.post, testgroup.failsafe]:
if f in filenames:
del filenames[filenames.index(f)]
self.testgroups[dirname] = testgroup
self.testgroups[dirname].tests = sorted(filenames)
testgroup.verify()
def filter(self, keeplist):
for group in list(self.testgroups.keys()):
if group not in keeplist:
del self.testgroups[group]
continue
g = self.testgroups[group]
if g.pre and os.path.basename(g.pre) in keeplist[group]:
continue
g.filter(keeplist[group])
for test in list(self.tests.keys()):
directory, base = os.path.split(test)
if directory not in keeplist or base not in keeplist[directory]:
del self.tests[test]
def read(self, options):
"""
Read in the specified runfiles, and apply the TestRun properties
listed in the 'DEFAULT' section to our TestRun. Then read each
section, and apply the appropriate properties to the Test or
TestGroup. Properties from individual sections override those set
in the 'DEFAULT' section. If the Test or TestGroup passes
verification, add it to the TestRun.
"""
config = configparser.RawConfigParser()
parsed = config.read(options.runfiles)
failed = options.runfiles - set(parsed)
if len(failed):
files = ' '.join(sorted(failed))
fail("Couldn't read config files: %s" % files)
for opt in TestRun.props:
if config.has_option('DEFAULT', opt):
setattr(self, opt, config.get('DEFAULT', opt))
self.outputdir = os.path.join(self.outputdir, self.timestamp)
testdir = options.testdir
for section in config.sections():
if 'tests' in config.options(section):
parts = section.split(':', 1)
sectiondir = parts[0]
identifier = parts[1] if len(parts) == 2 else None
if os.path.isdir(sectiondir):
pathname = sectiondir
elif os.path.isdir(os.path.join(testdir, sectiondir)):
pathname = os.path.join(testdir, sectiondir)
else:
pathname = sectiondir
testgroup = TestGroup(os.path.abspath(pathname),
identifier=identifier)
for prop in TestGroup.props:
for sect in ['DEFAULT', section]:
if config.has_option(sect, prop):
if prop == 'tags':
setattr(testgroup, prop,
eval(config.get(sect, prop)))
elif prop == 'failsafe':
failsafe = config.get(sect, prop)
setattr(testgroup, prop,
os.path.join(testdir, failsafe))
else:
setattr(testgroup, prop,
config.get(sect, prop))
# Repopulate tests using eval to convert the string to a list
testgroup.tests = eval(config.get(section, 'tests'))
if testgroup.verify():
self.testgroups[section] = testgroup
else:
test = Test(section)
for prop in Test.props:
for sect in ['DEFAULT', section]:
if config.has_option(sect, prop):
if prop == 'failsafe':
failsafe = config.get(sect, prop)
setattr(test, prop,
os.path.join(testdir, failsafe))
else:
setattr(test, prop, config.get(sect, prop))
if test.verify():
self.tests[section] = test
def write(self, options):
"""
Create a configuration file for editing and later use. The
'DEFAULT' section of the config file is created from the
properties that were specified on the command line. Tests are
simply added as sections that inherit everything from the
'DEFAULT' section. TestGroups are the same, except they get an
option including all the tests to run in that directory.
"""
defaults = dict([(prop, getattr(options, prop)) for prop, _ in
self.defaults])
config = configparser.RawConfigParser(defaults)
for test in sorted(self.tests.keys()):
config.add_section(test)
for prop in Test.props:
if prop not in self.props:
config.set(test, prop,
getattr(self.tests[test], prop))
for testgroup in sorted(self.testgroups.keys()):
config.add_section(testgroup)
config.set(testgroup, 'tests', self.testgroups[testgroup].tests)
for prop in TestGroup.props:
if prop not in self.props:
config.set(testgroup, prop,
getattr(self.testgroups[testgroup], prop))
try:
with open(options.template, 'w') as f:
return config.write(f)
except IOError:
fail('Could not open \'%s\' for writing.' % options.template)
def complete_outputdirs(self):
"""
Collect all the pathnames for Tests, and TestGroups. Work
backwards one pathname component at a time, to create a unique
directory name in which to deposit test output. Tests will be able
to write output files directly in the newly modified outputdir.
TestGroups will be able to create one subdirectory per test in the
outputdir, and are guaranteed uniqueness because a group can only
contain files in one directory. Pre and post tests will create a
directory rooted at the outputdir of the Test or TestGroup in
question for their output. Failsafe scripts will create a directory
rooted at the outputdir of each Test for their output.
"""
done = False
components = 0
tmp_dict = dict(list(self.tests.items()) +
list(self.testgroups.items()))
total = len(tmp_dict)
base = self.outputdir
while not done:
paths = []
components -= 1
for testfile in list(tmp_dict.keys()):
uniq = '/'.join(testfile.split('/')[components:]).lstrip('/')
if uniq not in paths:
paths.append(uniq)
tmp_dict[testfile].outputdir = os.path.join(base, uniq)
else:
break
done = total == len(paths)
def setup_logging(self, options):
"""
This function creates the output directory and gets a file object
for the logfile. This function must be called before write_log()
can be used.
"""
if options.dryrun is True:
return
global LOG_FILE_OBJ
if not options.template:
try:
old = os.umask(0)
os.makedirs(self.outputdir, mode=0o777)
os.umask(old)
filename = os.path.join(self.outputdir, 'log')
LOG_FILE_OBJ = open(filename, buffering=0, mode='wb')
except OSError as e:
fail('%s' % e)
def run(self, options):
"""
Walk through all the Tests and TestGroups, calling run().
"""
try:
os.chdir(self.outputdir)
except OSError:
fail('Could not change to directory %s' % self.outputdir)
# make a symlink to the output for the currently running test
logsymlink = os.path.join(self.outputdir, '../current')
if os.path.islink(logsymlink):
os.unlink(logsymlink)
if not os.path.exists(logsymlink):
os.symlink(self.outputdir, logsymlink)
else:
write_log('Could not make a symlink to directory %s\n' %
self.outputdir, LOG_ERR)
if options.kmemleak:
cmd = f'echo scan=0 | {SUDO} tee {KMEMLEAK_FILE}'
check_output(cmd, shell=True)
iteration = 0
while iteration < options.iterations:
for test in sorted(self.tests.keys()):
self.tests[test].run(options)
for testgroup in sorted(self.testgroups.keys()):
self.testgroups[testgroup].run(options)
iteration += 1
def summary(self):
if Result.total == 0:
return 2
print('\nResults Summary')
for key in list(Result.runresults.keys()):
if Result.runresults[key] != 0:
print('%s\t% 4d' % (key, Result.runresults[key]))
m, s = divmod(time() - self.starttime, 60)
h, m = divmod(m, 60)
print('\nRunning Time:\t%02d:%02d:%02d' % (h, m, s))
print('Percent passed:\t%.1f%%' % ((float(Result.runresults['PASS']) /
float(Result.total)) * 100))
print('Log directory:\t%s' % self.outputdir)
if Result.runresults['FAIL'] > 0:
return 1
if Result.runresults['KILLED'] > 0:
return 1
if Result.runresults['RERAN'] > 0:
return 3
return 0
def write_log(msg, target):
"""
Write the provided message to standard out, standard error or
the logfile. If specifying LOG_FILE, then `msg` must be a bytes
like object. This way we can still handle output from tests that
may be in unexpected encodings.
"""
if target == LOG_OUT:
os.write(sys.stdout.fileno(), bytearray(msg, encoding='utf-8'))
elif target == LOG_ERR:
os.write(sys.stderr.fileno(), bytearray(msg, encoding='utf-8'))
elif target == LOG_FILE:
os.write(LOG_FILE_OBJ.fileno(), msg)
else:
fail('log_msg called with unknown target "%s"' % target)
def verify_file(pathname):
"""
Verify that the supplied pathname is an executable regular file.
"""
if os.path.isdir(pathname) or os.path.islink(pathname):
return False
for ext in '', '.ksh', '.sh':
script_path = pathname + ext
if os.path.isfile(script_path) and os.access(script_path, os.X_OK):
return True
return False
def verify_user(user):
"""
Verify that the specified user exists on this system, and can execute
sudo without being prompted for a password.
"""
testcmd = [SUDO, '-n', '-u', user, TRUE]
if user in Cmd.verified_users:
return True
try:
getpwnam(user)
except KeyError:
write_log("Warning: user '%s' does not exist.\n" % user,
LOG_ERR)
return False
p = Popen(testcmd)
p.wait()
if p.returncode != 0:
write_log("Warning: user '%s' cannot use passwordless sudo.\n" % user,
LOG_ERR)
return False
else:
Cmd.verified_users.append(user)
return True
def find_tests(testrun, options):
"""
For the given list of pathnames, add files as Tests. For directories,
if do_groups is True, add the directory as a TestGroup. If False,
recursively search for executable files.
"""
for p in sorted(options.pathnames):
if os.path.isdir(p):
for dirname, _, filenames in os.walk(p):
if options.do_groups:
testrun.addtestgroup(dirname, filenames, options)
else:
for f in sorted(filenames):
testrun.addtest(os.path.join(dirname, f), options)
else:
testrun.addtest(p, options)
def filter_tests(testrun, options):
try:
fh = open(options.logfile, "r")
except Exception as e:
fail('%s' % e)
failed = {}
while True:
line = fh.readline()
if not line:
break
m = re.match(r'Test: .*(tests/.*)/(\S+).*\[FAIL\]', line)
if not m:
continue
group, test = m.group(1, 2)
try:
failed[group].append(test)
except KeyError:
failed[group] = [test]
fh.close()
testrun.filter(failed)
def fail(retstr, ret=1):
print('%s: %s' % (sys.argv[0], retstr))
exit(ret)
def kmemleak_cb(option, opt_str, value, parser):
if not os.path.exists(KMEMLEAK_FILE):
fail(f"File '{KMEMLEAK_FILE}' doesn't exist. " +
"Enable CONFIG_DEBUG_KMEMLEAK in kernel configuration.")
setattr(parser.values, option.dest, True)
def options_cb(option, opt_str, value, parser):
path_options = ['outputdir', 'template', 'testdir', 'logfile']
if opt_str in parser.rargs:
fail('%s may only be specified once.' % opt_str)
if option.dest == 'runfiles':
parser.values.cmd = 'rdconfig'
value = set(os.path.abspath(p) for p in value.split(','))
if option.dest == 'tags':
value = [x.strip() for x in value.split(',')]
if option.dest in path_options:
setattr(parser.values, option.dest, os.path.abspath(value))
else:
setattr(parser.values, option.dest, value)
def parse_args():
parser = OptionParser()
parser.add_option('-c', action='callback', callback=options_cb,
type='string', dest='runfiles', metavar='runfiles',
help='Specify tests to run via config files.')
parser.add_option('-d', action='store_true', default=False, dest='dryrun',
help='Dry run. Print tests, but take no other action.')
parser.add_option('-l', action='callback', callback=options_cb,
default=None, dest='logfile', metavar='logfile',
type='string',
help='Read logfile and re-run tests which failed.')
parser.add_option('-g', action='store_true', default=False,
dest='do_groups', help='Make directories TestGroups.')
parser.add_option('-o', action='callback', callback=options_cb,
default=BASEDIR, dest='outputdir', type='string',
metavar='outputdir', help='Specify an output directory.')
parser.add_option('-i', action='callback', callback=options_cb,
default=TESTDIR, dest='testdir', type='string',
metavar='testdir', help='Specify a test directory.')
parser.add_option('-m', action='callback', callback=kmemleak_cb,
default=False, dest='kmemleak',
help='Enable kmemleak reporting (Linux only)')
parser.add_option('-p', action='callback', callback=options_cb,
default='', dest='pre', metavar='script',
type='string', help='Specify a pre script.')
parser.add_option('-P', action='callback', callback=options_cb,
default='', dest='post', metavar='script',
type='string', help='Specify a post script.')
parser.add_option('-q', action='store_true', default=False, dest='quiet',
help='Silence on the console during a test run.')
parser.add_option('-s', action='callback', callback=options_cb,
default='', dest='failsafe', metavar='script',
type='string', help='Specify a failsafe script.')
parser.add_option('-S', action='callback', callback=options_cb,
default='', dest='failsafe_user',
metavar='failsafe_user', type='string',
help='Specify a user to execute the failsafe script.')
parser.add_option('-t', action='callback', callback=options_cb, default=60,
dest='timeout', metavar='seconds', type='int',
help='Timeout (in seconds) for an individual test.')
parser.add_option('-u', action='callback', callback=options_cb,
default='', dest='user', metavar='user', type='string',
help='Specify a different user name to run as.')
parser.add_option('-w', action='callback', callback=options_cb,
default=None, dest='template', metavar='template',
type='string', help='Create a new config file.')
parser.add_option('-x', action='callback', callback=options_cb, default='',
dest='pre_user', metavar='pre_user', type='string',
help='Specify a user to execute the pre script.')
parser.add_option('-X', action='callback', callback=options_cb, default='',
dest='post_user', metavar='post_user', type='string',
help='Specify a user to execute the post script.')
parser.add_option('-T', action='callback', callback=options_cb, default='',
dest='tags', metavar='tags', type='string',
help='Specify tags to execute specific test groups.')
parser.add_option('-I', action='callback', callback=options_cb, default=1,
dest='iterations', metavar='iterations', type='int',
help='Number of times to run the test run.')
(options, pathnames) = parser.parse_args()
if options.runfiles and len(pathnames):
fail('Extraneous arguments.')
options.pathnames = [os.path.abspath(path) for path in pathnames]
return options
def main():
options = parse_args()
testrun = TestRun(options)
if options.runfiles:
testrun.read(options)
else:
find_tests(testrun, options)
if options.logfile:
filter_tests(testrun, options)
if options.template:
testrun.write(options)
exit(0)
testrun.complete_outputdirs()
testrun.run(options)
exit(testrun.summary())
if __name__ == '__main__':
main()
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