/usr/lib/python2.7/dist-packages/kombu/tests/transport/virtual/test_base.py is in python-kombu 3.0.33-1ubuntu2.
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 warnings
from kombu import Connection
from kombu.exceptions import ResourceError, ChannelError
from kombu.transport import virtual
from kombu.utils import uuid
from kombu.compression import compress
from kombu.tests.case import Case, Mock, patch, redirect_stdouts
def client(**kwargs):
return Connection(transport='kombu.transport.virtual:Transport', **kwargs)
def memory_client():
return Connection(transport='memory')
class test_BrokerState(Case):
def test_constructor(self):
s = virtual.BrokerState()
self.assertTrue(hasattr(s, 'exchanges'))
self.assertTrue(hasattr(s, 'bindings'))
t = virtual.BrokerState(exchanges=16, bindings=32)
self.assertEqual(t.exchanges, 16)
self.assertEqual(t.bindings, 32)
class test_QoS(Case):
def setUp(self):
self.q = virtual.QoS(client().channel(), prefetch_count=10)
def tearDown(self):
self.q._on_collect.cancel()
def test_constructor(self):
self.assertTrue(self.q.channel)
self.assertTrue(self.q.prefetch_count)
self.assertFalse(self.q._delivered.restored)
self.assertTrue(self.q._on_collect)
@redirect_stdouts
def test_can_consume(self, stdout, stderr):
_restored = []
class RestoreChannel(virtual.Channel):
do_restore = True
def _restore(self, message):
_restored.append(message)
self.assertTrue(self.q.can_consume())
for i in range(self.q.prefetch_count - 1):
self.q.append(i, uuid())
self.assertTrue(self.q.can_consume())
self.q.append(i + 1, uuid())
self.assertFalse(self.q.can_consume())
tag1 = next(iter(self.q._delivered))
self.q.ack(tag1)
self.assertTrue(self.q.can_consume())
tag2 = uuid()
self.q.append(i + 2, tag2)
self.assertFalse(self.q.can_consume())
self.q.reject(tag2)
self.assertTrue(self.q.can_consume())
self.q.channel = RestoreChannel(self.q.channel.connection)
tag3 = uuid()
self.q.append(i + 3, tag3)
self.q.reject(tag3, requeue=True)
self.q._flush()
self.q.restore_unacked_once()
self.assertListEqual(_restored, [11, 9, 8, 7, 6, 5, 4, 3, 2, 1])
self.assertTrue(self.q._delivered.restored)
self.assertFalse(self.q._delivered)
self.q.restore_unacked_once()
self.q._delivered.restored = False
self.q.restore_unacked_once()
self.assertTrue(stderr.getvalue())
self.assertFalse(stdout.getvalue())
self.q.restore_at_shutdown = False
self.q.restore_unacked_once()
def test_get(self):
self.q._delivered['foo'] = 1
self.assertEqual(self.q.get('foo'), 1)
class test_Message(Case):
def test_create(self):
c = client().channel()
data = c.prepare_message('the quick brown fox...')
tag = data['properties']['delivery_tag'] = uuid()
message = c.message_to_python(data)
self.assertIsInstance(message, virtual.Message)
self.assertIs(message, c.message_to_python(message))
if message.errors:
message._reraise_error()
self.assertEqual(message.body,
'the quick brown fox...'.encode('utf-8'))
self.assertTrue(message.delivery_tag, tag)
def test_create_no_body(self):
virtual.Message(Mock(), {
'body': None,
'properties': {'delivery_tag': 1}})
def test_serializable(self):
c = client().channel()
body, content_type = compress('the quick brown fox...', 'gzip')
data = c.prepare_message(body, headers={'compression': content_type})
tag = data['properties']['delivery_tag'] = uuid()
message = c.message_to_python(data)
dict_ = message.serializable()
self.assertEqual(dict_['body'],
'the quick brown fox...'.encode('utf-8'))
self.assertEqual(dict_['properties']['delivery_tag'], tag)
self.assertFalse('compression' in dict_['headers'])
class test_AbstractChannel(Case):
def test_get(self):
with self.assertRaises(NotImplementedError):
virtual.AbstractChannel()._get('queue')
def test_put(self):
with self.assertRaises(NotImplementedError):
virtual.AbstractChannel()._put('queue', 'm')
def test_size(self):
self.assertEqual(virtual.AbstractChannel()._size('queue'), 0)
def test_purge(self):
with self.assertRaises(NotImplementedError):
virtual.AbstractChannel()._purge('queue')
def test_delete(self):
with self.assertRaises(NotImplementedError):
virtual.AbstractChannel()._delete('queue')
def test_new_queue(self):
self.assertIsNone(virtual.AbstractChannel()._new_queue('queue'))
def test_has_queue(self):
self.assertTrue(virtual.AbstractChannel()._has_queue('queue'))
def test_poll(self):
class Cycle(object):
called = False
def get(self):
self.called = True
return True
cycle = Cycle()
self.assertTrue(virtual.AbstractChannel()._poll(cycle))
self.assertTrue(cycle.called)
class test_Channel(Case):
def setUp(self):
self.channel = client().channel()
def tearDown(self):
if self.channel._qos is not None:
self.channel._qos._on_collect.cancel()
def test_exceeds_channel_max(self):
c = client()
t = c.transport
avail = t._avail_channel_ids = Mock(name='_avail_channel_ids')
avail.pop.side_effect = IndexError()
with self.assertRaises(ResourceError):
virtual.Channel(t)
def test_exchange_bind_interface(self):
with self.assertRaises(NotImplementedError):
self.channel.exchange_bind('dest', 'src', 'key')
def test_exchange_unbind_interface(self):
with self.assertRaises(NotImplementedError):
self.channel.exchange_unbind('dest', 'src', 'key')
def test_queue_unbind_interface(self):
with self.assertRaises(NotImplementedError):
self.channel.queue_unbind('dest', 'ex', 'key')
def test_management(self):
m = self.channel.connection.client.get_manager()
self.assertTrue(m)
m.get_bindings()
m.close()
def test_exchange_declare(self):
c = self.channel
with self.assertRaises(ChannelError):
c.exchange_declare('test_exchange_declare', 'direct',
durable=True, auto_delete=True, passive=True)
c.exchange_declare('test_exchange_declare', 'direct',
durable=True, auto_delete=True)
c.exchange_declare('test_exchange_declare', 'direct',
durable=True, auto_delete=True, passive=True)
self.assertIn('test_exchange_declare', c.state.exchanges)
# can declare again with same values
c.exchange_declare('test_exchange_declare', 'direct',
durable=True, auto_delete=True)
self.assertIn('test_exchange_declare', c.state.exchanges)
# using different values raises NotEquivalentError
with self.assertRaises(virtual.NotEquivalentError):
c.exchange_declare('test_exchange_declare', 'direct',
durable=False, auto_delete=True)
def test_exchange_delete(self, ex='test_exchange_delete'):
class PurgeChannel(virtual.Channel):
purged = []
def _purge(self, queue):
self.purged.append(queue)
c = PurgeChannel(self.channel.connection)
c.exchange_declare(ex, 'direct', durable=True, auto_delete=True)
self.assertIn(ex, c.state.exchanges)
self.assertNotIn(ex, c.state.bindings) # no bindings yet
c.exchange_delete(ex)
self.assertNotIn(ex, c.state.exchanges)
c.exchange_declare(ex, 'direct', durable=True, auto_delete=True)
c.queue_declare(ex)
c.queue_bind(ex, ex, ex)
self.assertTrue(c.state.bindings[ex])
c.exchange_delete(ex)
self.assertNotIn(ex, c.state.bindings)
self.assertIn(ex, c.purged)
def test_queue_delete__if_empty(self, n='test_queue_delete__if_empty'):
class PurgeChannel(virtual.Channel):
purged = []
size = 30
def _purge(self, queue):
self.purged.append(queue)
def _size(self, queue):
return self.size
c = PurgeChannel(self.channel.connection)
c.exchange_declare(n)
c.queue_declare(n)
c.queue_bind(n, n, n)
# tests code path that returns if queue already bound.
c.queue_bind(n, n, n)
c.queue_delete(n, if_empty=True)
self.assertIn(n, c.state.bindings)
c.size = 0
c.queue_delete(n, if_empty=True)
self.assertNotIn(n, c.state.bindings)
self.assertIn(n, c.purged)
def test_queue_purge(self, n='test_queue_purge'):
class PurgeChannel(virtual.Channel):
purged = []
def _purge(self, queue):
self.purged.append(queue)
c = PurgeChannel(self.channel.connection)
c.exchange_declare(n)
c.queue_declare(n)
c.queue_bind(n, n, n)
c.queue_purge(n)
self.assertIn(n, c.purged)
def test_basic_publish_unique_delivery_tags(self, n='test_uniq_tag'):
c1 = memory_client().channel()
c2 = memory_client().channel()
for c in (c1, c2):
c.exchange_declare(n)
c.queue_declare(n)
c.queue_bind(n, n, n)
m1 = c1.prepare_message('George Costanza')
m2 = c2.prepare_message('Elaine Marie Benes')
c1.basic_publish(m1, n, n)
c2.basic_publish(m2, n, n)
r1 = c1.message_to_python(c1.basic_get(n))
r2 = c2.message_to_python(c2.basic_get(n))
self.assertNotEqual(r1.delivery_tag, r2.delivery_tag)
with self.assertRaises(ValueError):
int(r1.delivery_tag)
with self.assertRaises(ValueError):
int(r2.delivery_tag)
def test_basic_publish__get__consume__restore(self,
n='test_basic_publish'):
c = memory_client().channel()
c.exchange_declare(n)
c.queue_declare(n)
c.queue_bind(n, n, n)
c.queue_declare(n + '2')
c.queue_bind(n + '2', n, n)
m = c.prepare_message('nthex quick brown fox...')
c.basic_publish(m, n, n)
r1 = c.message_to_python(c.basic_get(n))
self.assertTrue(r1)
self.assertEqual(r1.body,
'nthex quick brown fox...'.encode('utf-8'))
self.assertIsNone(c.basic_get(n))
consumer_tag = uuid()
c.basic_consume(n + '2', False,
consumer_tag=consumer_tag, callback=lambda *a: None)
self.assertIn(n + '2', c._active_queues)
r2, _ = c.drain_events()
r2 = c.message_to_python(r2)
self.assertEqual(r2.body,
'nthex quick brown fox...'.encode('utf-8'))
self.assertEqual(r2.delivery_info['exchange'], n)
self.assertEqual(r2.delivery_info['routing_key'], n)
with self.assertRaises(virtual.Empty):
c.drain_events()
c.basic_cancel(consumer_tag)
c._restore(r2)
r3 = c.message_to_python(c.basic_get(n))
self.assertTrue(r3)
self.assertEqual(r3.body, 'nthex quick brown fox...'.encode('utf-8'))
self.assertIsNone(c.basic_get(n))
def test_basic_ack(self):
class MockQoS(virtual.QoS):
was_acked = False
def ack(self, delivery_tag):
self.was_acked = True
self.channel._qos = MockQoS(self.channel)
self.channel.basic_ack('foo')
self.assertTrue(self.channel._qos.was_acked)
def test_basic_recover__requeue(self):
class MockQoS(virtual.QoS):
was_restored = False
def restore_unacked(self):
self.was_restored = True
self.channel._qos = MockQoS(self.channel)
self.channel.basic_recover(requeue=True)
self.assertTrue(self.channel._qos.was_restored)
def test_restore_unacked_raises_BaseException(self):
q = self.channel.qos
q._flush = Mock()
q._delivered = {1: 1}
q.channel._restore = Mock()
q.channel._restore.side_effect = SystemExit
errors = q.restore_unacked()
self.assertIsInstance(errors[0][0], SystemExit)
self.assertEqual(errors[0][1], 1)
self.assertFalse(q._delivered)
@patch('kombu.transport.virtual.emergency_dump_state')
@patch('kombu.transport.virtual.say')
def test_restore_unacked_once_when_unrestored(self, say,
emergency_dump_state):
q = self.channel.qos
q._flush = Mock()
class State(dict):
restored = False
q._delivered = State({1: 1})
ru = q.restore_unacked = Mock()
exc = None
try:
raise KeyError()
except KeyError as exc_:
exc = exc_
ru.return_value = [(exc, 1)]
self.channel.do_restore = True
q.restore_unacked_once()
self.assertTrue(say.called)
self.assertTrue(emergency_dump_state.called)
def test_basic_recover(self):
with self.assertRaises(NotImplementedError):
self.channel.basic_recover(requeue=False)
def test_basic_reject(self):
class MockQoS(virtual.QoS):
was_rejected = False
def reject(self, delivery_tag, requeue=False):
self.was_rejected = True
self.channel._qos = MockQoS(self.channel)
self.channel.basic_reject('foo')
self.assertTrue(self.channel._qos.was_rejected)
def test_basic_qos(self):
self.channel.basic_qos(prefetch_count=128)
self.assertEqual(self.channel._qos.prefetch_count, 128)
def test_lookup__undeliverable(self, n='test_lookup__undeliverable'):
warnings.resetwarnings()
with warnings.catch_warnings(record=True) as log:
self.assertListEqual(
self.channel._lookup(n, n, 'ae.undeliver'),
['ae.undeliver'],
)
self.assertTrue(log)
self.assertIn('could not be delivered', log[0].message.args[0])
def test_context(self):
x = self.channel.__enter__()
self.assertIs(x, self.channel)
x.__exit__()
self.assertTrue(x.closed)
def test_cycle_property(self):
self.assertTrue(self.channel.cycle)
def test_flow(self):
with self.assertRaises(NotImplementedError):
self.channel.flow(False)
def test_close_when_no_connection(self):
self.channel.connection = None
self.channel.close()
self.assertTrue(self.channel.closed)
def test_drain_events_has_get_many(self):
c = self.channel
c._get_many = Mock()
c._poll = Mock()
c._consumers = [1]
c._qos = Mock()
c._qos.can_consume.return_value = True
c.drain_events(timeout=10.0)
c._get_many.assert_called_with(c._active_queues, timeout=10.0)
def test_get_exchanges(self):
self.channel.exchange_declare(exchange='foo')
self.assertTrue(self.channel.get_exchanges())
def test_basic_cancel_not_in_active_queues(self):
c = self.channel
c._consumers.add('x')
c._tag_to_queue['x'] = 'foo'
c._active_queues = Mock()
c._active_queues.remove.side_effect = ValueError()
c.basic_cancel('x')
c._active_queues.remove.assert_called_with('foo')
def test_basic_cancel_unknown_ctag(self):
self.assertIsNone(self.channel.basic_cancel('unknown-tag'))
def test_list_bindings(self):
c = self.channel
c.exchange_declare(exchange='foo')
c.queue_declare(queue='q')
c.queue_bind(queue='q', exchange='foo', routing_key='rk')
self.assertIn(('q', 'foo', 'rk'), list(c.list_bindings()))
def test_after_reply_message_received(self):
c = self.channel
c.queue_delete = Mock()
c.after_reply_message_received('foo')
c.queue_delete.assert_called_with('foo')
def test_queue_delete_unknown_queue(self):
self.assertIsNone(self.channel.queue_delete('xiwjqjwel'))
def test_queue_declare_passive(self):
has_queue = self.channel._has_queue = Mock()
has_queue.return_value = False
with self.assertRaises(ChannelError):
self.channel.queue_declare(queue='21wisdjwqe', passive=True)
class test_Transport(Case):
def setUp(self):
self.transport = client().transport
def test_custom_polling_interval(self):
x = client(transport_options=dict(polling_interval=32.3))
self.assertEqual(x.transport.polling_interval, 32.3)
def test_close_connection(self):
c1 = self.transport.create_channel(self.transport)
c2 = self.transport.create_channel(self.transport)
self.assertEqual(len(self.transport.channels), 2)
self.transport.close_connection(self.transport)
self.assertFalse(self.transport.channels)
del(c1) # so pyflakes doesn't complain
del(c2)
def test_drain_channel(self):
channel = self.transport.create_channel(self.transport)
with self.assertRaises(virtual.Empty):
self.transport._drain_channel(channel)
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