/usr/lib/python2.7/dist-packages/kombu/tests/test_connection.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 pickle
import socket
from copy import copy
from kombu import Connection, Consumer, Producer, parse_url
from kombu.connection import Resource
from kombu.five import items, range
from .case import Case, Mock, SkipTest, patch, skip_if_not_module
from .mocks import Transport
class test_connection_utils(Case):
def setUp(self):
self.url = 'amqp://user:pass@localhost:5672/my/vhost'
self.nopass = 'amqp://user:**@localhost:5672/my/vhost'
self.expected = {
'transport': 'amqp',
'userid': 'user',
'password': 'pass',
'hostname': 'localhost',
'port': 5672,
'virtual_host': 'my/vhost',
}
def test_parse_url(self):
result = parse_url(self.url)
self.assertDictEqual(result, self.expected)
def test_parse_generated_as_uri(self):
conn = Connection(self.url)
info = conn.info()
for k, v in self.expected.items():
self.assertEqual(info[k], v)
# by default almost the same- no password
self.assertEqual(conn.as_uri(), self.nopass)
self.assertEqual(conn.as_uri(include_password=True), self.url)
def test_as_uri_when_prefix(self):
conn = Connection('memory://')
conn.uri_prefix = 'foo'
self.assertTrue(conn.as_uri().startswith('foo+memory://'))
@skip_if_not_module('pymongo')
def test_as_uri_when_mongodb(self):
x = Connection('mongodb://localhost')
self.assertTrue(x.as_uri())
def test_bogus_scheme(self):
with self.assertRaises(KeyError):
Connection('bogus://localhost:7421').transport
def assert_info(self, conn, **fields):
info = conn.info()
for field, expected in items(fields):
self.assertEqual(info[field], expected)
def test_rabbitmq_example_urls(self):
# see Appendix A of http://www.rabbitmq.com/uri-spec.html
self.assert_info(
Connection('amqp://user:pass@host:10000/vhost'),
userid='user', password='pass', hostname='host',
port=10000, virtual_host='vhost',
)
self.assert_info(
Connection('amqp://user%61:%61pass@ho%61st:10000/v%2fhost'),
userid='usera', password='apass', hostname='hoast',
port=10000, virtual_host='v/host',
)
self.assert_info(
Connection('amqp://'),
userid='guest', password='guest', hostname='localhost',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://:@/'),
userid='guest', password='guest', hostname='localhost',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://user@/'),
userid='user', password='guest', hostname='localhost',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://user:pass@/'),
userid='user', password='pass', hostname='localhost',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://host'),
userid='guest', password='guest', hostname='host',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://:10000'),
userid='guest', password='guest', hostname='localhost',
port=10000, virtual_host='/',
)
self.assert_info(
Connection('amqp:///vhost'),
userid='guest', password='guest', hostname='localhost',
port=5672, virtual_host='vhost',
)
self.assert_info(
Connection('amqp://host/'),
userid='guest', password='guest', hostname='host',
port=5672, virtual_host='/',
)
self.assert_info(
Connection('amqp://host/%2f'),
userid='guest', password='guest', hostname='host',
port=5672, virtual_host='/',
)
def test_url_IPV6(self):
raise SkipTest("urllib can't parse ipv6 urls")
self.assert_info(
Connection('amqp://[::1]'),
userid='guest', password='guest', hostname='[::1]',
port=5672, virtual_host='/',
)
class test_Connection(Case):
def setUp(self):
self.conn = Connection(port=5672, transport=Transport)
def test_establish_connection(self):
conn = self.conn
conn.connect()
self.assertTrue(conn.connection.connected)
self.assertEqual(conn.host, 'localhost:5672')
channel = conn.channel()
self.assertTrue(channel.open)
self.assertEqual(conn.drain_events(), 'event')
_connection = conn.connection
conn.close()
self.assertFalse(_connection.connected)
self.assertIsInstance(conn.transport, Transport)
def test_multiple_urls(self):
conn1 = Connection('amqp://foo;amqp://bar')
self.assertEqual(conn1.hostname, 'foo')
self.assertListEqual(conn1.alt, ['amqp://foo', 'amqp://bar'])
conn2 = Connection(['amqp://foo', 'amqp://bar'])
self.assertEqual(conn2.hostname, 'foo')
self.assertListEqual(conn2.alt, ['amqp://foo', 'amqp://bar'])
def test_collect(self):
connection = Connection('memory://')
trans = connection._transport = Mock(name='transport')
_collect = trans._collect = Mock(name='transport._collect')
_close = connection._close = Mock(name='connection._close')
connection.declared_entities = Mock(name='decl_entities')
uconn = connection._connection = Mock(name='_connection')
connection.collect()
self.assertFalse(_close.called)
_collect.assert_called_with(uconn)
connection.declared_entities.clear.assert_called_with()
self.assertIsNone(trans.client)
self.assertIsNone(connection._transport)
self.assertIsNone(connection._connection)
def test_collect_no_transport(self):
connection = Connection('memory://')
connection._transport = None
connection._close = Mock()
connection.collect()
connection._close.assert_called_with()
connection._close.side_effect = socket.timeout()
connection.collect()
def test_collect_transport_gone(self):
connection = Connection('memory://')
uconn = connection._connection = Mock(name='conn._conn')
trans = connection._transport = Mock(name='transport')
collect = trans._collect = Mock(name='transport._collect')
def se(conn):
connection._transport = None
collect.side_effect = se
connection.collect()
collect.assert_called_with(uconn)
self.assertIsNone(connection._transport)
def test_uri_passthrough(self):
transport = Mock(name='transport')
with patch('kombu.connection.get_transport_cls') as gtc:
gtc.return_value = transport
transport.can_parse_url = True
with patch('kombu.connection.parse_url') as parse_url:
c = Connection('foo+mysql://some_host')
self.assertEqual(c.transport_cls, 'foo')
self.assertFalse(parse_url.called)
self.assertEqual(c.hostname, 'mysql://some_host')
self.assertTrue(c.as_uri().startswith('foo+'))
with patch('kombu.connection.parse_url') as parse_url:
c = Connection('mysql://some_host', transport='foo')
self.assertEqual(c.transport_cls, 'foo')
self.assertFalse(parse_url.called)
self.assertEqual(c.hostname, 'mysql://some_host')
c = Connection('pyamqp+sqlite://some_host')
self.assertTrue(c.as_uri().startswith('pyamqp+'))
def test_default_ensure_callback(self):
with patch('kombu.connection.logger') as logger:
c = Connection(transport=Mock)
c._default_ensure_callback(KeyError(), 3)
self.assertTrue(logger.error.called)
def test_ensure_connection_on_error(self):
c = Connection('amqp://A;amqp://B')
with patch('kombu.connection.retry_over_time') as rot:
c.ensure_connection()
self.assertTrue(rot.called)
args = rot.call_args[0]
cb = args[4]
intervals = iter([1, 2, 3, 4, 5])
self.assertEqual(cb(KeyError(), intervals, 0), 0)
self.assertEqual(cb(KeyError(), intervals, 1), 1)
self.assertEqual(cb(KeyError(), intervals, 2), 0)
self.assertEqual(cb(KeyError(), intervals, 3), 2)
self.assertEqual(cb(KeyError(), intervals, 4), 0)
self.assertEqual(cb(KeyError(), intervals, 5), 3)
self.assertEqual(cb(KeyError(), intervals, 6), 0)
self.assertEqual(cb(KeyError(), intervals, 7), 4)
errback = Mock()
c.ensure_connection(errback=errback)
args = rot.call_args[0]
cb = args[4]
self.assertEqual(cb(KeyError(), intervals, 0), 0)
self.assertTrue(errback.called)
def test_supports_heartbeats(self):
c = Connection(transport=Mock)
c.transport.supports_heartbeats = False
self.assertFalse(c.supports_heartbeats)
def test_is_evented(self):
c = Connection(transport=Mock)
c.transport.supports_ev = False
self.assertFalse(c.is_evented)
def test_register_with_event_loop(self):
c = Connection(transport=Mock)
loop = Mock(name='loop')
c.register_with_event_loop(loop)
c.transport.register_with_event_loop.assert_called_with(
c.connection, loop,
)
def test_manager(self):
c = Connection(transport=Mock)
self.assertIs(c.manager, c.transport.manager)
def test_copy(self):
c = Connection('amqp://example.com')
self.assertEqual(copy(c).info(), c.info())
def test_copy_multiples(self):
c = Connection('amqp://A.example.com;amqp://B.example.com')
self.assertTrue(c.alt)
d = copy(c)
self.assertEqual(d.alt, c.alt)
def test_switch(self):
c = Connection('amqp://foo')
c._closed = True
c.switch('redis://example.com//3')
self.assertFalse(c._closed)
self.assertEqual(c.hostname, 'example.com')
self.assertEqual(c.transport_cls, 'redis')
self.assertEqual(c.virtual_host, '/3')
def test_maybe_switch_next(self):
c = Connection('amqp://foo;redis://example.com//3')
c.maybe_switch_next()
self.assertFalse(c._closed)
self.assertEqual(c.hostname, 'example.com')
self.assertEqual(c.transport_cls, 'redis')
self.assertEqual(c.virtual_host, '/3')
def test_maybe_switch_next_no_cycle(self):
c = Connection('amqp://foo')
c.maybe_switch_next()
self.assertFalse(c._closed)
self.assertEqual(c.hostname, 'foo')
self.assertIn(c.transport_cls, ('librabbitmq', 'pyamqp', 'amqp'))
def test_heartbeat_check(self):
c = Connection(transport=Transport)
c.transport.heartbeat_check = Mock()
c.heartbeat_check(3)
c.transport.heartbeat_check.assert_called_with(c.connection, rate=3)
def test_completes_cycle_no_cycle(self):
c = Connection('amqp://')
self.assertTrue(c.completes_cycle(0))
self.assertTrue(c.completes_cycle(1))
def test_completes_cycle(self):
c = Connection('amqp://a;amqp://b;amqp://c')
self.assertFalse(c.completes_cycle(0))
self.assertFalse(c.completes_cycle(1))
self.assertTrue(c.completes_cycle(2))
def test__enter____exit__(self):
conn = self.conn
context = conn.__enter__()
self.assertIs(context, conn)
conn.connect()
self.assertTrue(conn.connection.connected)
conn.__exit__()
self.assertIsNone(conn.connection)
conn.close() # again
def test_close_survives_connerror(self):
class _CustomError(Exception):
pass
class MyTransport(Transport):
connection_errors = (_CustomError, )
def close_connection(self, connection):
raise _CustomError('foo')
conn = Connection(transport=MyTransport)
conn.connect()
conn.close()
self.assertTrue(conn._closed)
def test_close_when_default_channel(self):
conn = self.conn
conn._default_channel = Mock()
conn._close()
conn._default_channel.close.assert_called_with()
def test_close_when_default_channel_close_raises(self):
class Conn(Connection):
@property
def connection_errors(self):
return (KeyError, )
conn = Conn('memory://')
conn._default_channel = Mock()
conn._default_channel.close.side_effect = KeyError()
conn._close()
conn._default_channel.close.assert_called_with()
def test_revive_when_default_channel(self):
conn = self.conn
defchan = conn._default_channel = Mock()
conn.revive(Mock())
defchan.close.assert_called_with()
self.assertIsNone(conn._default_channel)
def test_ensure_connection(self):
self.assertTrue(self.conn.ensure_connection())
def test_ensure_success(self):
def publish():
return 'foobar'
ensured = self.conn.ensure(None, publish)
self.assertEqual(ensured(), 'foobar')
def test_ensure_failure(self):
class _CustomError(Exception):
pass
def publish():
raise _CustomError('bar')
ensured = self.conn.ensure(None, publish)
with self.assertRaises(_CustomError):
ensured()
def test_ensure_connection_failure(self):
class _ConnectionError(Exception):
pass
def publish():
raise _ConnectionError('failed connection')
self.conn.transport.connection_errors = (_ConnectionError,)
ensured = self.conn.ensure(self.conn, publish)
with self.assertRaises(_ConnectionError):
ensured()
def test_autoretry(self):
myfun = Mock()
self.conn.transport.connection_errors = (KeyError, )
def on_call(*args, **kwargs):
myfun.side_effect = None
raise KeyError('foo')
myfun.side_effect = on_call
insured = self.conn.autoretry(myfun)
insured()
self.assertTrue(myfun.called)
def test_SimpleQueue(self):
conn = self.conn
q = conn.SimpleQueue('foo')
self.assertIs(q.channel, conn.default_channel)
chan = conn.channel()
q2 = conn.SimpleQueue('foo', channel=chan)
self.assertIs(q2.channel, chan)
def test_SimpleBuffer(self):
conn = self.conn
q = conn.SimpleBuffer('foo')
self.assertIs(q.channel, conn.default_channel)
chan = conn.channel()
q2 = conn.SimpleBuffer('foo', channel=chan)
self.assertIs(q2.channel, chan)
def test_Producer(self):
conn = self.conn
self.assertIsInstance(conn.Producer(), Producer)
self.assertIsInstance(conn.Producer(conn.default_channel), Producer)
def test_Consumer(self):
conn = self.conn
self.assertIsInstance(conn.Consumer(queues=[]), Consumer)
self.assertIsInstance(conn.Consumer(queues=[],
channel=conn.default_channel), Consumer)
def test__repr__(self):
self.assertTrue(repr(self.conn))
def test__reduce__(self):
x = pickle.loads(pickle.dumps(self.conn))
self.assertDictEqual(x.info(), self.conn.info())
def test_channel_errors(self):
class MyTransport(Transport):
channel_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
self.assertTupleEqual(conn.channel_errors, (KeyError, ValueError))
def test_connection_errors(self):
class MyTransport(Transport):
connection_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
self.assertTupleEqual(conn.connection_errors, (KeyError, ValueError))
class test_Connection_with_transport_options(Case):
transport_options = {'pool_recycler': 3600, 'echo': True}
def setUp(self):
self.conn = Connection(port=5672, transport=Transport,
transport_options=self.transport_options)
def test_establish_connection(self):
conn = self.conn
self.assertEqual(conn.transport_options, self.transport_options)
class xResource(Resource):
def setup(self):
pass
class ResourceCase(Case):
abstract = True
def create_resource(self, limit, preload):
raise NotImplementedError('subclass responsibility')
def assertState(self, P, avail, dirty):
self.assertEqual(P._resource.qsize(), avail)
self.assertEqual(len(P._dirty), dirty)
def test_setup(self):
if self.abstract:
with self.assertRaises(NotImplementedError):
Resource()
def test_acquire__release(self):
if self.abstract:
return
P = self.create_resource(10, 0)
self.assertState(P, 10, 0)
chans = [P.acquire() for _ in range(10)]
self.assertState(P, 0, 10)
with self.assertRaises(P.LimitExceeded):
P.acquire()
chans.pop().release()
self.assertState(P, 1, 9)
[chan.release() for chan in chans]
self.assertState(P, 10, 0)
def test_acquire_prepare_raises(self):
if self.abstract:
return
P = self.create_resource(10, 0)
self.assertEqual(len(P._resource.queue), 10)
P.prepare = Mock()
P.prepare.side_effect = IOError()
with self.assertRaises(IOError):
P.acquire(block=True)
self.assertEqual(len(P._resource.queue), 10)
def test_acquire_no_limit(self):
if self.abstract:
return
P = self.create_resource(None, 0)
P.acquire().release()
def test_replace_when_limit(self):
if self.abstract:
return
P = self.create_resource(10, 0)
r = P.acquire()
P._dirty = Mock()
P.close_resource = Mock()
P.replace(r)
P._dirty.discard.assert_called_with(r)
P.close_resource.assert_called_with(r)
def test_replace_no_limit(self):
if self.abstract:
return
P = self.create_resource(None, 0)
r = P.acquire()
P._dirty = Mock()
P.close_resource = Mock()
P.replace(r)
self.assertFalse(P._dirty.discard.called)
P.close_resource.assert_called_with(r)
def test_interface_prepare(self):
if not self.abstract:
return
x = xResource()
self.assertEqual(x.prepare(10), 10)
def test_force_close_all_handles_AttributeError(self):
if self.abstract:
return
P = self.create_resource(10, 10)
cr = P.collect_resource = Mock()
cr.side_effect = AttributeError('x')
P.acquire()
self.assertTrue(P._dirty)
P.force_close_all()
def test_force_close_all_no_mutex(self):
if self.abstract:
return
P = self.create_resource(10, 10)
P.close_resource = Mock()
m = P._resource = Mock()
m.mutex = None
m.queue.pop.side_effect = IndexError
P.force_close_all()
def test_add_when_empty(self):
if self.abstract:
return
P = self.create_resource(None, None)
P._resource.queue[:] = []
self.assertFalse(P._resource.queue)
P._add_when_empty()
self.assertTrue(P._resource.queue)
class test_ConnectionPool(ResourceCase):
abstract = False
def create_resource(self, limit, preload):
return Connection(port=5672, transport=Transport).Pool(limit, preload)
def test_setup(self):
P = self.create_resource(10, 2)
q = P._resource.queue
self.assertIsNotNone(q[0]._connection)
self.assertIsNotNone(q[1]._connection)
self.assertIsNone(q[2]()._connection)
def test_acquire_raises_evaluated(self):
P = self.create_resource(1, 0)
# evaluate the connection first
r = P.acquire()
r.release()
P.prepare = Mock()
P.prepare.side_effect = MemoryError()
P.release = Mock()
with self.assertRaises(MemoryError):
with P.acquire():
assert False
P.release.assert_called_with(r)
def test_release_no__debug(self):
P = self.create_resource(10, 2)
R = Mock()
R._debug.side_effect = AttributeError()
P.release_resource(R)
def test_setup_no_limit(self):
P = self.create_resource(None, None)
self.assertFalse(P._resource.queue)
self.assertIsNone(P.limit)
def test_prepare_not_callable(self):
P = self.create_resource(None, None)
conn = Connection('memory://')
self.assertIs(P.prepare(conn), conn)
def test_acquire_channel(self):
P = self.create_resource(10, 0)
with P.acquire_channel() as (conn, channel):
self.assertIs(channel, conn.default_channel)
class test_ChannelPool(ResourceCase):
abstract = False
def create_resource(self, limit, preload):
return Connection(port=5672, transport=Transport) \
.ChannelPool(limit, preload)
def test_setup(self):
P = self.create_resource(10, 2)
q = P._resource.queue
self.assertTrue(q[0].basic_consume)
self.assertTrue(q[1].basic_consume)
with self.assertRaises(AttributeError):
getattr(q[2], 'basic_consume')
def test_setup_no_limit(self):
P = self.create_resource(None, None)
self.assertFalse(P._resource.queue)
self.assertIsNone(P.limit)
def test_prepare_not_callable(self):
P = self.create_resource(10, 0)
conn = Connection('memory://')
chan = conn.default_channel
self.assertIs(P.prepare(chan), chan)
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