/usr/lib/python2.7/dist-packages/celery/tests/events/test_events.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 celery.events import Event
from celery.tests.case import AppCase, Mock
class MockProducer(object):
raise_on_publish = False
def __init__(self, *args, **kwargs):
self.sent = []
def publish(self, msg, *args, **kwargs):
if self.raise_on_publish:
raise KeyError()
self.sent.append(msg)
def close(self):
pass
def has_event(self, kind):
for event in self.sent:
if event['type'] == kind:
return event
return False
class test_Event(AppCase):
def test_constructor(self):
event = Event('world war II')
self.assertEqual(event['type'], 'world war II')
self.assertTrue(event['timestamp'])
class test_EventDispatcher(AppCase):
def test_redis_uses_fanout_exchange(self):
self.app.connection = Mock()
conn = self.app.connection.return_value = Mock()
conn.transport.driver_type = 'redis'
dispatcher = self.app.events.Dispatcher(conn, enabled=False)
self.assertEqual(dispatcher.exchange.type, 'fanout')
def test_others_use_topic_exchange(self):
self.app.connection = Mock()
conn = self.app.connection.return_value = Mock()
conn.transport.driver_type = 'amqp'
dispatcher = self.app.events.Dispatcher(conn, enabled=False)
self.assertEqual(dispatcher.exchange.type, 'topic')
def test_takes_channel_connection(self):
x = self.app.events.Dispatcher(channel=Mock())
self.assertIs(x.connection, x.channel.connection.client)
def test_sql_transports_disabled(self):
conn = Mock()
conn.transport.driver_type = 'sql'
x = self.app.events.Dispatcher(connection=conn)
self.assertFalse(x.enabled)
def test_send(self):
producer = MockProducer()
producer.connection = self.app.connection()
connection = Mock()
connection.transport.driver_type = 'amqp'
eventer = self.app.events.Dispatcher(connection, enabled=False,
buffer_while_offline=False)
eventer.producer = producer
eventer.enabled = True
eventer.send('World War II', ended=True)
self.assertTrue(producer.has_event('World War II'))
eventer.enabled = False
eventer.send('World War III')
self.assertFalse(producer.has_event('World War III'))
evs = ('Event 1', 'Event 2', 'Event 3')
eventer.enabled = True
eventer.producer.raise_on_publish = True
eventer.buffer_while_offline = False
with self.assertRaises(KeyError):
eventer.send('Event X')
eventer.buffer_while_offline = True
for ev in evs:
eventer.send(ev)
eventer.producer.raise_on_publish = False
eventer.flush()
for ev in evs:
self.assertTrue(producer.has_event(ev))
buf = eventer._outbound_buffer = Mock()
buf.popleft.side_effect = IndexError()
eventer.flush()
def test_enter_exit(self):
with self.app.connection() as conn:
d = self.app.events.Dispatcher(conn)
d.close = Mock()
with d as _d:
self.assertTrue(_d)
d.close.assert_called_with()
def test_enable_disable_callbacks(self):
on_enable = Mock()
on_disable = Mock()
with self.app.connection() as conn:
with self.app.events.Dispatcher(conn, enabled=False) as d:
d.on_enabled.add(on_enable)
d.on_disabled.add(on_disable)
d.enable()
on_enable.assert_called_with()
d.disable()
on_disable.assert_called_with()
def test_enabled_disable(self):
connection = self.app.connection()
channel = connection.channel()
try:
dispatcher = self.app.events.Dispatcher(connection,
enabled=True)
dispatcher2 = self.app.events.Dispatcher(connection,
enabled=True,
channel=channel)
self.assertTrue(dispatcher.enabled)
self.assertTrue(dispatcher.producer.channel)
self.assertEqual(dispatcher.producer.serializer,
self.app.conf.CELERY_EVENT_SERIALIZER)
created_channel = dispatcher.producer.channel
dispatcher.disable()
dispatcher.disable() # Disable with no active producer
dispatcher2.disable()
self.assertFalse(dispatcher.enabled)
self.assertIsNone(dispatcher.producer)
self.assertFalse(dispatcher2.channel.closed,
'does not close manually provided channel')
dispatcher.enable()
self.assertTrue(dispatcher.enabled)
self.assertTrue(dispatcher.producer)
# XXX test compat attribute
self.assertIs(dispatcher.publisher, dispatcher.producer)
prev, dispatcher.publisher = dispatcher.producer, 42
try:
self.assertEqual(dispatcher.producer, 42)
finally:
dispatcher.producer = prev
finally:
channel.close()
connection.close()
self.assertTrue(created_channel.closed)
class test_EventReceiver(AppCase):
def test_process(self):
message = {'type': 'world-war'}
got_event = [False]
def my_handler(event):
got_event[0] = True
connection = Mock()
connection.transport_cls = 'memory'
r = self.app.events.Receiver(
connection,
handlers={'world-war': my_handler},
node_id='celery.tests',
)
r._receive(message, object())
self.assertTrue(got_event[0])
def test_catch_all_event(self):
message = {'type': 'world-war'}
got_event = [False]
def my_handler(event):
got_event[0] = True
connection = Mock()
connection.transport_cls = 'memory'
r = self.app.events.Receiver(connection, node_id='celery.tests')
r.handlers['*'] = my_handler
r._receive(message, object())
self.assertTrue(got_event[0])
def test_itercapture(self):
connection = self.app.connection()
try:
r = self.app.events.Receiver(connection, node_id='celery.tests')
it = r.itercapture(timeout=0.0001, wakeup=False)
with self.assertRaises(socket.timeout):
next(it)
with self.assertRaises(socket.timeout):
r.capture(timeout=0.00001)
finally:
connection.close()
def test_event_from_message_localize_disabled(self):
r = self.app.events.Receiver(Mock(), node_id='celery.tests')
r.adjust_clock = Mock()
ts_adjust = Mock()
r.event_from_message(
{'type': 'worker-online', 'clock': 313},
localize=False,
adjust_timestamp=ts_adjust,
)
self.assertFalse(ts_adjust.called)
r.adjust_clock.assert_called_with(313)
def test_itercapture_limit(self):
connection = self.app.connection()
channel = connection.channel()
try:
events_received = [0]
def handler(event):
events_received[0] += 1
producer = self.app.events.Dispatcher(
connection, enabled=True, channel=channel,
)
r = self.app.events.Receiver(
connection,
handlers={'*': handler},
node_id='celery.tests',
)
evs = ['ev1', 'ev2', 'ev3', 'ev4', 'ev5']
for ev in evs:
producer.send(ev)
it = r.itercapture(limit=4, wakeup=True)
next(it) # skip consumer (see itercapture)
list(it)
self.assertEqual(events_received[0], 4)
finally:
channel.close()
connection.close()
class test_misc(AppCase):
def test_State(self):
state = self.app.events.State()
self.assertDictEqual(dict(state.workers), {})
def test_default_dispatcher(self):
with self.app.events.default_dispatcher() as d:
self.assertTrue(d)
self.assertTrue(d.connection)
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