def test_successful_stop(self):
"""
test stopWorker() on a successful worker stop
"""
def emulated_kill(pid, sig):
if sig == 0:
# when probed if a signal can be send to the process
# emulate that it is dead with 'No such process' error
raise OSError(errno.ESRCH, "dummy")
# patch open() to return a pid file
self.setUpOpen(str(self.PID))
# patch os.kill to emulate successful kill
mocked_kill = mock.Mock(side_effect=emulated_kill)
self.patch(os, "kill", mocked_kill)
# don't waste time
self.patch(time, "sleep", mock.Mock())
# check that stopWorker() sends expected signal to right PID
# and print correct message to stdout
stop.stopWorker(None, False)
mocked_kill.assert_has_calls([mock.call(self.PID, signal.SIGTERM),
mock.call(self.PID, 0)])
self.assertStdoutEqual("worker process %s is dead\n" % self.PID)
def test_successful_stop(self):
"""
test stopWorker() on a successful worker stop
"""
def emulated_kill(pid, sig):
if sig == 0:
# when probed if a signal can be send to the process
# emulate that it is dead with 'No such process' error
raise OSError(errno.ESRCH, "dummy")
# patch open() to return a pid file
self.setUpOpen(str(self.PID))
# patch os.kill to emulate successful kill
mocked_kill = mock.Mock(side_effect=emulated_kill)
self.patch(os, "kill", mocked_kill)
# don't waste time
self.patch(time, "sleep", mock.Mock())
# check that stopWorker() sends expected signal to right PID
# and print correct message to stdout
stop.stopWorker(None, False)
mocked_kill.assert_has_calls(
[mock.call(self.PID, signal.SIGTERM),
mock.call(self.PID, 0)])
self.assertStdoutEqual("worker process %s is dead\n" % self.PID)
def test_no_pid_file(self):
"""
test calling stopWorker() when no pid file is present
"""
# patch open() to raise 'file not found' exception
self.setUpOpenError(2)
# check that stop() raises WorkerNotRunning exception
with self.assertRaises(stop.WorkerNotRunning):
stop.stopWorker(None, False)
def test_no_pid_file(self):
"""
test calling stopWorker() when no pid file is present
"""
# patch open() to raise 'file not found' exception
self.setUpOpenError(2)
# check that stop() raises WorkerNotRunning exception
with self.assertRaises(stop.WorkerNotRunning):
stop.stopWorker(None, False)
def restart(config):
quiet = config['quiet']
basedir = config['basedir']
if not base.isWorkerDir(basedir):
return 1
try:
stop.stopWorker(basedir, quiet)
except stop.WorkerNotRunning:
if not quiet:
log.msg("no old worker process found to stop")
if not quiet:
log.msg("now restarting worker process..")
return start.startWorker(basedir, quiet, config['nodaemon'])
def test_stop_timeout(self):
"""
test stopWorker() when stop timeouts
"""
# patch open() to return a pid file
self.setUpOpen(str(self.PID))
# patch os.kill to emulate successful kill
mocked_kill = mock.Mock()
self.patch(os, "kill", mocked_kill)
# don't waste time
self.patch(time, "sleep", mock.Mock())
# check that stopWorker() sends expected signal to right PID
# and print correct message to stdout
exit_code = stop.stopWorker(None, False)
self.assertEqual(exit_code, 1)
mocked_kill.assert_has_calls([mock.call(self.PID, signal.SIGTERM),
mock.call(self.PID, 0)])
self.assertStdoutEqual("never saw process go away\n")
def test_stop_timeout(self):
"""
test stopWorker() when stop timeouts
"""
# patch open() to return a pid file
self.setUpOpen(str(self.PID))
# patch os.kill to emulate successful kill
mocked_kill = mock.Mock()
self.patch(os, "kill", mocked_kill)
# don't waste time
self.patch(time, "sleep", mock.Mock())
# check that stopWorker() sends expected signal to right PID
# and print correct message to stdout
exit_code = stop.stopWorker(None, False)
self.assertEqual(exit_code, 1)
mocked_kill.assert_has_calls([mock.call(self.PID, signal.SIGTERM),
mock.call(self.PID, 0)])
self.assertStdoutEqual("never saw process go away\n")
