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# This file is part of Buildbot. Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
from __future__ import with_statement
import os
import time
import signal
from twisted.trial import unittest
from buildbot.scripts import stop
from buildbot.test.util import dirs, misc, compat
def mkconfig(**kwargs):
config = dict(quiet=False, clean=False, basedir=os.path.abspath('basedir'))
config.update(kwargs)
return config
class TestStop(misc.StdoutAssertionsMixin, dirs.DirsMixin, unittest.TestCase):
def setUp(self):
self.setUpDirs('basedir')
self.setUpStdoutAssertions()
def tearDown(self):
self.tearDownDirs()
# tests
def do_test_stop(self, config, kill_sequence, is_running=True, **kwargs):
with open(os.path.join('basedir', 'buildbot.tac'), 'wt') as f:
f.write("Application('buildmaster')")
if is_running:
with open("basedir/twistd.pid", 'wt') as f:
f.write('1234')
def sleep(t):
what, exp_t = kill_sequence.pop(0)
self.assertEqual((what, exp_t), ('sleep', t))
self.patch(time, 'sleep', sleep)
def kill(pid, signal):
exp_sig, result = kill_sequence.pop(0)
self.assertEqual((pid,signal), (1234,exp_sig))
if isinstance(result, Exception):
raise result
else:
return result
self.patch(os, 'kill', kill)
rv = stop.stop(config, **kwargs)
self.assertEqual(kill_sequence, [])
return rv
@compat.skipUnlessPlatformIs('posix')
def test_stop_not_running(self):
rv = self.do_test_stop(mkconfig(), [], is_running=False)
self.assertInStdout('not running')
self.assertEqual(rv, 0)
@compat.skipUnlessPlatformIs('posix')
def test_stop_dead_but_pidfile_remains(self):
rv = self.do_test_stop(mkconfig(),
[ (signal.SIGTERM, OSError(3, 'No such process')) ])
self.assertEqual(rv, 0)
self.assertFalse(os.path.exists(os.path.join('basedir', 'twistd.pid')))
self.assertInStdout('not running')
@compat.skipUnlessPlatformIs('posix')
def test_stop_dead_but_pidfile_remains_quiet(self):
rv = self.do_test_stop(mkconfig(quiet=True),
[ (signal.SIGTERM, OSError(3, 'No such process')) ],)
self.assertEqual(rv, 0)
self.assertFalse(os.path.exists(os.path.join('basedir', 'twistd.pid')))
self.assertWasQuiet()
@compat.skipUnlessPlatformIs('posix')
def test_stop_dead_but_pidfile_remains_wait(self):
rv = self.do_test_stop(mkconfig(),
[ (signal.SIGTERM, OSError(3, 'No such process')) ],
wait=True)
self.assertEqual(rv, 0)
self.assertFalse(os.path.exists(os.path.join('basedir', 'twistd.pid')))
@compat.skipUnlessPlatformIs('posix')
def test_stop_slow_death_wait(self):
rv = self.do_test_stop(mkconfig(), [
(signal.SIGTERM, None),
('sleep', 0.1),
(0, None), # polling..
('sleep', 1),
(0, None),
('sleep', 1),
(0, None),
('sleep', 1),
(0, OSError(3, 'No such process')),
],
wait=True)
self.assertInStdout('is dead')
self.assertEqual(rv, 0)
@compat.skipUnlessPlatformIs('posix')
def test_stop_slow_death_wait_timeout(self):
rv = self.do_test_stop(mkconfig(), [
(signal.SIGTERM, None),
('sleep', 0.1), ] +
[ (0, None),
('sleep', 1), ] * 10,
wait=True)
self.assertInStdout('never saw process')
self.assertEqual(rv, 1)
@compat.skipUnlessPlatformIs('posix')
def test_stop_clean(self):
rv = self.do_test_stop(mkconfig(clean=True), [
(signal.SIGUSR1, None), ], wait=False)
self.assertInStdout('sent SIGUSR1 to process')
self.assertEqual(rv, 0)
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