/usr/lib/python2.7/dist-packages/celery/tests/worker/test_loops.py is in python-celery 3.1.20-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import socket
from kombu.async import Hub, READ, WRITE, ERR
from celery.bootsteps import CLOSE, RUN
from celery.exceptions import InvalidTaskError, WorkerShutdown, WorkerTerminate
from celery.five import Empty
from celery.worker import state
from celery.worker.consumer import Consumer
from celery.worker.loops import asynloop, synloop
from celery.tests.case import AppCase, Mock, body_from_sig
class X(object):
def __init__(self, app, heartbeat=None, on_task_message=None,
transport_driver_type=None):
hub = Hub()
(
self.obj,
self.connection,
self.consumer,
self.blueprint,
self.hub,
self.qos,
self.heartbeat,
self.clock,
) = self.args = [Mock(name='obj'),
Mock(name='connection'),
Mock(name='consumer'),
Mock(name='blueprint'),
hub,
Mock(name='qos'),
heartbeat,
Mock(name='clock')]
self.connection.supports_heartbeats = True
self.connection.get_heartbeat_interval.side_effect = (
lambda: self.heartbeat
)
self.consumer.callbacks = []
self.obj.strategies = {}
self.connection.connection_errors = (socket.error, )
if transport_driver_type:
self.connection.transport.driver_type = transport_driver_type
self.hub.readers = {}
self.hub.writers = {}
self.hub.consolidate = set()
self.hub.timer = Mock(name='hub.timer')
self.hub.timer._queue = [Mock()]
self.hub.fire_timers = Mock(name='hub.fire_timers')
self.hub.fire_timers.return_value = 1.7
self.hub.poller = Mock(name='hub.poller')
self.hub.close = Mock(name='hub.close()') # asynloop calls hub.close
self.Hub = self.hub
self.blueprint.state = RUN
# need this for create_task_handler
_consumer = Consumer(Mock(), timer=Mock(), app=app)
_consumer.on_task_message = on_task_message or []
self.obj.create_task_handler = _consumer.create_task_handler
self.on_unknown_message = self.obj.on_unknown_message = Mock(
name='on_unknown_message',
)
_consumer.on_unknown_message = self.on_unknown_message
self.on_unknown_task = self.obj.on_unknown_task = Mock(
name='on_unknown_task',
)
_consumer.on_unknown_task = self.on_unknown_task
self.on_invalid_task = self.obj.on_invalid_task = Mock(
name='on_invalid_task',
)
_consumer.on_invalid_task = self.on_invalid_task
_consumer.strategies = self.obj.strategies
def timeout_then_error(self, mock):
def first(*args, **kwargs):
mock.side_effect = socket.error()
self.connection.more_to_read = False
raise socket.timeout()
mock.side_effect = first
def close_then_error(self, mock=None, mod=0, exc=None):
mock = Mock() if mock is None else mock
def first(*args, **kwargs):
if not mod or mock.call_count > mod:
self.close()
self.connection.more_to_read = False
raise (socket.error() if exc is None else exc)
mock.side_effect = first
return mock
def close(self, *args, **kwargs):
self.blueprint.state = CLOSE
def closer(self, mock=None, mod=0):
mock = Mock() if mock is None else mock
def closing(*args, **kwargs):
if not mod or mock.call_count >= mod:
self.close()
mock.side_effect = closing
return mock
def get_task_callback(*args, **kwargs):
x = X(*args, **kwargs)
x.blueprint.state = CLOSE
asynloop(*x.args)
return x, x.consumer.callbacks[0]
class test_asynloop(AppCase):
def setup(self):
@self.app.task(shared=False)
def add(x, y):
return x + y
self.add = add
def test_drain_after_consume(self):
x, _ = get_task_callback(self.app, transport_driver_type='amqp')
self.assertIn(
x.connection.drain_events, [p.fun for p in x.hub._ready],
)
def test_setup_heartbeat(self):
x = X(self.app, heartbeat=10)
x.hub.call_repeatedly = Mock(name='x.hub.call_repeatedly()')
x.blueprint.state = CLOSE
asynloop(*x.args)
x.consumer.consume.assert_called_with()
x.obj.on_ready.assert_called_with()
x.hub.call_repeatedly.assert_called_with(
10 / 2.0, x.connection.heartbeat_check, 2.0,
)
def task_context(self, sig, **kwargs):
x, on_task = get_task_callback(self.app, **kwargs)
body = body_from_sig(self.app, sig)
message = Mock()
strategy = x.obj.strategies[sig.task] = Mock()
return x, on_task, body, message, strategy
def test_on_task_received(self):
_, on_task, body, msg, strategy = self.task_context(self.add.s(2, 2))
on_task(body, msg)
strategy.assert_called_with(
msg, body, msg.ack_log_error, msg.reject_log_error, [],
)
def test_on_task_received_executes_on_task_message(self):
cbs = [Mock(), Mock(), Mock()]
_, on_task, body, msg, strategy = self.task_context(
self.add.s(2, 2), on_task_message=cbs,
)
on_task(body, msg)
strategy.assert_called_with(
msg, body, msg.ack_log_error, msg.reject_log_error, cbs,
)
def test_on_task_message_missing_name(self):
x, on_task, body, msg, strategy = self.task_context(self.add.s(2, 2))
body.pop('task')
on_task(body, msg)
x.on_unknown_message.assert_called_with(body, msg)
def test_on_task_not_registered(self):
x, on_task, body, msg, strategy = self.task_context(self.add.s(2, 2))
exc = strategy.side_effect = KeyError(self.add.name)
on_task(body, msg)
x.on_unknown_task.assert_called_with(body, msg, exc)
def test_on_task_InvalidTaskError(self):
x, on_task, body, msg, strategy = self.task_context(self.add.s(2, 2))
exc = strategy.side_effect = InvalidTaskError()
on_task(body, msg)
x.on_invalid_task.assert_called_with(body, msg, exc)
def test_should_terminate(self):
x = X(self.app)
# XXX why aren't the errors propagated?!?
state.should_terminate = True
try:
with self.assertRaises(WorkerTerminate):
asynloop(*x.args)
finally:
state.should_terminate = False
def test_should_terminate_hub_close_raises(self):
x = X(self.app)
# XXX why aren't the errors propagated?!?
state.should_terminate = True
x.hub.close.side_effect = MemoryError()
try:
with self.assertRaises(WorkerTerminate):
asynloop(*x.args)
finally:
state.should_terminate = False
def test_should_stop(self):
x = X(self.app)
state.should_stop = True
try:
with self.assertRaises(WorkerShutdown):
asynloop(*x.args)
finally:
state.should_stop = False
def test_updates_qos(self):
x = X(self.app)
x.qos.prev = 3
x.qos.value = 3
x.hub.on_tick.add(x.closer(mod=2))
x.hub.timer._queue = [1]
asynloop(*x.args)
self.assertFalse(x.qos.update.called)
x = X(self.app)
x.qos.prev = 1
x.qos.value = 6
x.hub.on_tick.add(x.closer(mod=2))
asynloop(*x.args)
x.qos.update.assert_called_with()
x.hub.fire_timers.assert_called_with(propagate=(socket.error, ))
def test_poll_empty(self):
x = X(self.app)
x.hub.readers = {6: Mock()}
x.hub.timer._queue = [1]
x.close_then_error(x.hub.poller.poll)
x.hub.fire_timers.return_value = 33.37
poller = x.hub.poller
poller.poll.return_value = []
with self.assertRaises(socket.error):
asynloop(*x.args)
poller.poll.assert_called_with(33.37)
def test_poll_readable(self):
x = X(self.app)
reader = Mock(name='reader')
x.hub.add_reader(6, reader, 6)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), mod=4))
poller = x.hub.poller
poller.poll.return_value = [(6, READ)]
with self.assertRaises(socket.error):
asynloop(*x.args)
reader.assert_called_with(6)
self.assertTrue(poller.poll.called)
def test_poll_readable_raises_Empty(self):
x = X(self.app)
reader = Mock(name='reader')
x.hub.add_reader(6, reader, 6)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
poller = x.hub.poller
poller.poll.return_value = [(6, READ)]
reader.side_effect = Empty()
with self.assertRaises(socket.error):
asynloop(*x.args)
reader.assert_called_with(6)
self.assertTrue(poller.poll.called)
def test_poll_writable(self):
x = X(self.app)
writer = Mock(name='writer')
x.hub.add_writer(6, writer, 6)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
poller = x.hub.poller
poller.poll.return_value = [(6, WRITE)]
with self.assertRaises(socket.error):
asynloop(*x.args)
writer.assert_called_with(6)
self.assertTrue(poller.poll.called)
def test_poll_writable_none_registered(self):
x = X(self.app)
writer = Mock(name='writer')
x.hub.add_writer(6, writer, 6)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
poller = x.hub.poller
poller.poll.return_value = [(7, WRITE)]
with self.assertRaises(socket.error):
asynloop(*x.args)
self.assertTrue(poller.poll.called)
def test_poll_unknown_event(self):
x = X(self.app)
writer = Mock(name='reader')
x.hub.add_writer(6, writer, 6)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
poller = x.hub.poller
poller.poll.return_value = [(6, 0)]
with self.assertRaises(socket.error):
asynloop(*x.args)
self.assertTrue(poller.poll.called)
def test_poll_keep_draining_disabled(self):
x = X(self.app)
x.hub.writers = {6: Mock()}
poll = x.hub.poller.poll
def se(*args, **kwargs):
poll.side_effect = socket.error()
poll.side_effect = se
poller = x.hub.poller
poll.return_value = [(6, 0)]
with self.assertRaises(socket.error):
asynloop(*x.args)
self.assertTrue(poller.poll.called)
def test_poll_err_writable(self):
x = X(self.app)
writer = Mock(name='writer')
x.hub.add_writer(6, writer, 6, 48)
x.hub.on_tick.add(x.close_then_error(Mock(), 2))
poller = x.hub.poller
poller.poll.return_value = [(6, ERR)]
with self.assertRaises(socket.error):
asynloop(*x.args)
writer.assert_called_with(6, 48)
self.assertTrue(poller.poll.called)
def test_poll_write_generator(self):
x = X(self.app)
x.hub.remove = Mock(name='hub.remove()')
def Gen():
yield 1
yield 2
gen = Gen()
x.hub.add_writer(6, gen)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
x.hub.poller.poll.return_value = [(6, WRITE)]
with self.assertRaises(socket.error):
asynloop(*x.args)
self.assertTrue(gen.gi_frame.f_lasti != -1)
self.assertFalse(x.hub.remove.called)
def test_poll_write_generator_stopped(self):
x = X(self.app)
def Gen():
raise StopIteration()
yield
gen = Gen()
x.hub.add_writer(6, gen)
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
x.hub.poller.poll.return_value = [(6, WRITE)]
x.hub.remove = Mock(name='hub.remove()')
with self.assertRaises(socket.error):
asynloop(*x.args)
self.assertIsNone(gen.gi_frame)
def test_poll_write_generator_raises(self):
x = X(self.app)
def Gen():
raise ValueError('foo')
yield
gen = Gen()
x.hub.add_writer(6, gen)
x.hub.remove = Mock(name='hub.remove()')
x.hub.on_tick.add(x.close_then_error(Mock(name='tick'), 2))
x.hub.poller.poll.return_value = [(6, WRITE)]
with self.assertRaises(ValueError):
asynloop(*x.args)
self.assertIsNone(gen.gi_frame)
x.hub.remove.assert_called_with(6)
def test_poll_err_readable(self):
x = X(self.app)
reader = Mock(name='reader')
x.hub.add_reader(6, reader, 6, 24)
x.hub.on_tick.add(x.close_then_error(Mock(), 2))
poller = x.hub.poller
poller.poll.return_value = [(6, ERR)]
with self.assertRaises(socket.error):
asynloop(*x.args)
reader.assert_called_with(6, 24)
self.assertTrue(poller.poll.called)
def test_poll_raises_ValueError(self):
x = X(self.app)
x.hub.readers = {6: Mock()}
poller = x.hub.poller
x.close_then_error(poller.poll, exc=ValueError)
asynloop(*x.args)
self.assertTrue(poller.poll.called)
class test_synloop(AppCase):
def test_timeout_ignored(self):
x = X(self.app)
x.timeout_then_error(x.connection.drain_events)
with self.assertRaises(socket.error):
synloop(*x.args)
self.assertEqual(x.connection.drain_events.call_count, 2)
def test_updates_qos_when_changed(self):
x = X(self.app)
x.qos.prev = 2
x.qos.value = 2
x.timeout_then_error(x.connection.drain_events)
with self.assertRaises(socket.error):
synloop(*x.args)
self.assertFalse(x.qos.update.called)
x.qos.value = 4
x.timeout_then_error(x.connection.drain_events)
with self.assertRaises(socket.error):
synloop(*x.args)
x.qos.update.assert_called_with()
def test_ignores_socket_errors_when_closed(self):
x = X(self.app)
x.close_then_error(x.connection.drain_events)
self.assertIsNone(synloop(*x.args))
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