/usr/lib/python3/dist-packages/celery/tests/worker/test_autoreload.py is in python3-celery 3.1.13-3.
This file is owned by root:root, with mode 0o644.
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import errno
import select
import sys
from time import time
from celery.worker import autoreload
from celery.worker.autoreload import (
WorkerComponent,
file_hash,
BaseMonitor,
StatMonitor,
KQueueMonitor,
InotifyMonitor,
default_implementation,
Autoreloader,
)
from celery.tests.case import AppCase, Case, Mock, SkipTest, patch, mock_open
class test_WorkerComponent(AppCase):
def test_create_threaded(self):
w = Mock()
w.use_eventloop = False
x = WorkerComponent(w)
x.instantiate = Mock()
r = x.create(w)
x.instantiate.assert_called_with(w.autoreloader_cls, w)
self.assertIs(r, w.autoreloader)
@patch('select.kevent', create=True)
@patch('select.kqueue', create=True)
@patch('kombu.utils.eventio.kqueue')
def test_create_ev(self, kq, kqueue, kevent):
w = Mock()
w.use_eventloop = True
x = WorkerComponent(w)
x.instantiate = Mock()
r = x.create(w)
x.instantiate.assert_called_with(w.autoreloader_cls, w)
x.register_with_event_loop(w, w.hub)
self.assertIsNone(r)
w.hub.on_close.add.assert_called_with(
w.autoreloader.on_event_loop_close,
)
class test_file_hash(Case):
def test_hash(self):
with mock_open() as a:
a.write('the quick brown fox\n')
a.seek(0)
A = file_hash('foo')
with mock_open() as b:
b.write('the quick brown bar\n')
b.seek(0)
B = file_hash('bar')
self.assertNotEqual(A, B)
class test_BaseMonitor(Case):
def test_start_stop_on_change(self):
x = BaseMonitor(['a', 'b'])
with self.assertRaises(NotImplementedError):
x.start()
x.stop()
x.on_change([])
x._on_change = Mock()
x.on_change('foo')
x._on_change.assert_called_with('foo')
class test_StatMonitor(Case):
@patch('os.stat')
def test_start(self, stat):
class st(object):
st_mtime = time()
stat.return_value = st()
x = StatMonitor(['a', 'b'])
def on_is_set():
if x.shutdown_event.is_set.call_count > 3:
return True
return False
x.shutdown_event = Mock()
x.shutdown_event.is_set.side_effect = on_is_set
x.start()
x.shutdown_event = Mock()
stat.side_effect = OSError()
x.start()
@patch('os.stat')
def test_mtime_stat_raises(self, stat):
stat.side_effect = ValueError()
x = StatMonitor(['a', 'b'])
x._mtime('a')
class test_KQueueMonitor(Case):
@patch('select.kqueue', create=True)
@patch('os.close')
def test_stop(self, close, kqueue):
x = KQueueMonitor(['a', 'b'])
x.poller = Mock()
x.filemap['a'] = 10
x.stop()
x.poller.close.assert_called_with()
close.assert_called_with(10)
close.side_effect = OSError()
close.side_effect.errno = errno.EBADF
x.stop()
def test_register_with_event_loop(self):
from kombu.utils import eventio
if eventio.kqueue is None:
raise SkipTest('version of kombu does not work with pypy')
x = KQueueMonitor(['a', 'b'])
hub = Mock(name='hub')
x.add_events = Mock(name='add_events()')
x.register_with_event_loop(hub)
x.add_events.assert_called_with(x._kq)
self.assertEqual(
x._kq.on_file_change,
x.handle_event,
)
def test_on_event_loop_close(self):
x = KQueueMonitor(['a', 'b'])
x.close = Mock()
x._kq = Mock(name='_kq')
x.on_event_loop_close(Mock(name='hub'))
x.close.assert_called_with(x._kq)
def test_handle_event(self):
x = KQueueMonitor(['a', 'b'])
x.on_change = Mock()
eA = Mock()
eA.ident = 'a'
eB = Mock()
eB.ident = 'b'
x.fdmap = {'a': 'A', 'b': 'B'}
x.handle_event([eA, eB])
x.on_change.assert_called_with(['A', 'B'])
@patch('kombu.utils.eventio.kqueue', create=True)
@patch('kombu.utils.eventio.kevent', create=True)
@patch('os.open')
@patch('select.kqueue', create=True)
def test_start(self, _kq, osopen, kevent, kqueue):
from kombu.utils import eventio
prev_poll, eventio.poll = eventio.poll, kqueue
prev = {}
flags = ['KQ_FILTER_VNODE', 'KQ_EV_ADD', 'KQ_EV_ENABLE',
'KQ_EV_CLEAR', 'KQ_NOTE_WRITE', 'KQ_NOTE_EXTEND']
for i, flag in enumerate(flags):
prev[flag] = getattr(eventio, flag, None)
if not prev[flag]:
setattr(eventio, flag, i)
try:
kq = kqueue.return_value = Mock()
class ev(object):
ident = 10
filter = eventio.KQ_FILTER_VNODE
fflags = eventio.KQ_NOTE_WRITE
kq.control.return_value = [ev()]
x = KQueueMonitor(['a'])
osopen.return_value = 10
calls = [0]
def on_is_set():
calls[0] += 1
if calls[0] > 2:
return True
return False
x.shutdown_event = Mock()
x.shutdown_event.is_set.side_effect = on_is_set
x.start()
finally:
for flag in flags:
if prev[flag]:
setattr(eventio, flag, prev[flag])
else:
delattr(eventio, flag)
eventio.poll = prev_poll
class test_InotifyMonitor(Case):
@patch('celery.worker.autoreload.pyinotify')
def test_start(self, inotify):
x = InotifyMonitor(['a'])
inotify.IN_MODIFY = 1
inotify.IN_ATTRIB = 2
x.start()
inotify.WatchManager.side_effect = ValueError()
with self.assertRaises(ValueError):
x.start()
x.stop()
x._on_change = None
x.process_(Mock())
x._on_change = Mock()
x.process_(Mock())
self.assertTrue(x._on_change.called)
class test_default_implementation(Case):
@patch('select.kqueue', create=True)
@patch('kombu.utils.eventio.kqueue', create=True)
def test_kqueue(self, kq, kqueue):
self.assertEqual(default_implementation(), 'kqueue')
@patch('celery.worker.autoreload.pyinotify')
def test_inotify(self, pyinotify):
kq = getattr(select, 'kqueue', None)
try:
delattr(select, 'kqueue')
except AttributeError:
pass
platform, sys.platform = sys.platform, 'linux'
try:
self.assertEqual(default_implementation(), 'inotify')
ino, autoreload.pyinotify = autoreload.pyinotify, None
try:
self.assertEqual(default_implementation(), 'stat')
finally:
autoreload.pyinotify = ino
finally:
if kq:
select.kqueue = kq
sys.platform = platform
class test_Autoreloader(AppCase):
def test_register_with_event_loop(self):
x = Autoreloader(Mock(), modules=[__name__])
hub = Mock()
x._monitor = None
x.on_init = Mock()
def se(*args, **kwargs):
x._monitor = Mock()
x.on_init.side_effect = se
x.register_with_event_loop(hub)
x.on_init.assert_called_with()
x._monitor.register_with_event_loop.assert_called_with(hub)
x._monitor.register_with_event_loop.reset_mock()
x.register_with_event_loop(hub)
x._monitor.register_with_event_loop.assert_called_with(hub)
def test_on_event_loop_close(self):
x = Autoreloader(Mock(), modules=[__name__])
hub = Mock()
x._monitor = Mock()
x.on_event_loop_close(hub)
x._monitor.on_event_loop_close.assert_called_with(hub)
x._monitor = None
x.on_event_loop_close(hub)
@patch('celery.worker.autoreload.file_hash')
def test_start(self, fhash):
x = Autoreloader(Mock(), modules=[__name__])
x.Monitor = Mock()
mon = x.Monitor.return_value = Mock()
mon.start.side_effect = OSError()
mon.start.side_effect.errno = errno.EINTR
x.body()
mon.start.side_effect.errno = errno.ENOENT
with self.assertRaises(OSError):
x.body()
mon.start.side_effect = None
x.body()
@patch('celery.worker.autoreload.file_hash')
@patch('os.path.exists')
def test_maybe_modified(self, exists, fhash):
exists.return_value = True
fhash.return_value = 'abcd'
x = Autoreloader(Mock(), modules=[__name__])
x._hashes = {}
x._hashes[__name__] = 'dcba'
self.assertTrue(x._maybe_modified(__name__))
x._hashes[__name__] = 'abcd'
self.assertFalse(x._maybe_modified(__name__))
exists.return_value = False
self.assertFalse(x._maybe_modified(__name__))
def test_on_change(self):
x = Autoreloader(Mock(), modules=[__name__])
mm = x._maybe_modified = Mock(0)
mm.return_value = True
x._reload = Mock()
x.file_to_module[__name__] = __name__
x.on_change([__name__])
self.assertTrue(x._reload.called)
mm.return_value = False
x.on_change([__name__])
def test_reload(self):
x = Autoreloader(Mock(), modules=[__name__])
x._reload([__name__])
x.controller.reload.assert_called_with([__name__], reload=True)
def test_stop(self):
x = Autoreloader(Mock(), modules=[__name__])
x._monitor = None
x.stop()
x._monitor = Mock()
x.stop()
x._monitor.stop.assert_called_with()
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