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(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._do_close_self = Mock()
connection._do_close_transport = Mock()
connection.collect()
connection._do_close_self.assert_called_with()
connection._do_close_transport.assert_called_with()
connection._do_close_self.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.implements.heartbeats = False
self.assertFalse(c.supports_heartbeats)
def test_is_evented(self):
c = Connection(transport=Mock)
c.transport.implements. async = 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:
def setup(self):
self.conn = Connection(port=5672, transport=Transport)
def test_establish_connection(self):
conn = self.conn
assert not conn.connected
conn.connect()
assert conn.connected
assert conn.connection.connected
assert conn.host == 'localhost:5672'
channel = conn.channel()
assert channel.open
assert conn.drain_events() == 'event'
_connection = conn.connection
conn.close()
assert not _connection.connected
assert isinstance(conn.transport, Transport)
def test_reuse_connection(self):
conn = self.conn
assert conn.connect() is conn.connection is conn.connect()
def test_connect_no_transport_options(self):
conn = self.conn
conn._ensure_connection = Mock()
conn.connect()
# ensure_connection must be called to return immidiately
# and fail with transport exception
conn._ensure_connection.assert_called_with(
max_retries=1, reraise_as_library_errors=False)
def test_connect_transport_options(self):
conn = self.conn
conn.transport_options = {
'max_retries': 1,
'interval_start': 2,
'interval_step': 3,
'interval_max': 4,
'ignore_this': True
}
conn._ensure_connection = Mock()
conn.connect()
# connect() is ignoring transport options
# ensure_connection must be called to return immidiately
# and fail with transport exception
conn._ensure_connection.assert_called_with(
max_retries=1, reraise_as_library_errors=False)
def test_multiple_urls(self):
conn1 = Connection('amqp://foo;amqp://bar')
assert conn1.hostname == 'foo'
assert conn1.alt == ['amqp://foo', 'amqp://bar']
conn2 = Connection(['amqp://foo', 'amqp://bar'])
assert conn2.hostname == 'foo'
assert 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()
_close.assert_not_called()
_collect.assert_called_with(uconn)
connection.declared_entities.clear.assert_called_with()
assert trans.client is None
assert connection._transport is None
assert connection._connection is None
def test_prefer_librabbitmq_over_amqp_when_available(self):
with patch('kombu.connection.supports_librabbitmq', return_value=True):
connection = Connection('amqp://')
assert connection.transport_cls == 'librabbitmq'
def test_select_amqp_when_librabbitmq_is_not_available(self):
with patch('kombu.connection.supports_librabbitmq',
return_value=False):
connection = Connection('amqp://')
assert connection.transport_cls == 'amqp'
def test_collect_no_transport(self):
connection = Connection('memory://')
connection._transport = None
connection._do_close_self = Mock()
connection._do_close_transport = Mock()
connection.collect()
connection._do_close_self.assert_called_with()
connection._do_close_transport.assert_called_with()
connection._do_close_self.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)
assert connection._transport is None
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')
assert c.transport_cls == 'foo'
parse_url.assert_not_called()
assert c.hostname == 'mysql://some_host'
assert c.as_uri().startswith('foo+')
with patch('kombu.connection.parse_url') as parse_url:
c = Connection('mysql://some_host', transport='foo')
assert c.transport_cls == 'foo'
parse_url.assert_not_called()
assert c.hostname == 'mysql://some_host'
c = Connection('pyamqp+sqlite://some_host')
assert c.as_uri().startswith('pyamqp+')
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()
rot.assert_called()
args = rot.call_args[0]
cb = args[4]
intervals = iter([1, 2, 3, 4, 5])
assert cb(KeyError(), intervals, 0) == 0
assert cb(KeyError(), intervals, 1) == 1
assert cb(KeyError(), intervals, 2) == 0
assert cb(KeyError(), intervals, 3) == 2
assert cb(KeyError(), intervals, 4) == 0
assert cb(KeyError(), intervals, 5) == 3
assert cb(KeyError(), intervals, 6) == 0
assert cb(KeyError(), intervals, 7) == 4
errback = Mock()
c.ensure_connection(errback=errback)
args = rot.call_args[0]
cb = args[4]
assert cb(KeyError(), intervals, 0) == 0
errback.assert_called()
def test_supports_heartbeats(self):
c = Connection(transport=Mock)
c.transport.implements.heartbeats = False
assert not c.supports_heartbeats
def test_is_evented(self):
c = Connection(transport=Mock)
c.transport.implements.asynchronous = False
assert not 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)
assert c.manager is c.transport.manager
def test_copy(self):
c = Connection('amqp://example.com')
assert copy(c).info() == c.info()
def test_copy_multiples(self):
c = Connection('amqp://A.example.com;amqp://B.example.com')
assert c.alt
d = copy(c)
assert d.alt == c.alt
def test_switch(self):
c = Connection('amqp://foo')
c._closed = True
c.switch('redis://example.com//3')
assert not c._closed
assert c.hostname == 'example.com'
assert c.transport_cls == 'redis'
assert c.virtual_host == '/3'
def test_maybe_switch_next(self):
c = Connection('amqp://foo;redis://example.com//3')
c.maybe_switch_next()
assert not c._closed
assert c.hostname == 'example.com'
assert c.transport_cls == 'redis'
assert c.virtual_host == '/3'
def test_maybe_switch_next_no_cycle(self):
c = Connection('amqp://foo')
c.maybe_switch_next()
assert not c._closed
assert c.hostname == 'foo'
assert c.transport_cls, ('librabbitmq', 'pyamqp' in 'amqp')
def test_switch_without_uri_identifier(self):
c = Connection('amqp://foo')
assert c.hostname == 'foo'
assert c.transport_cls, ('librabbitmq', 'pyamqp' in 'amqp')
c._closed = True
c.switch('example.com')
assert not c._closed
assert c.hostname == 'example.com'
assert c.transport_cls, ('librabbitmq', 'pyamqp' in '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://')
assert c.completes_cycle(0)
assert c.completes_cycle(1)
def test_completes_cycle(self):
c = Connection('amqp://a;amqp://b;amqp://c')
assert not c.completes_cycle(0)
assert not c.completes_cycle(1)
assert c.completes_cycle(2)
def test_get_heartbeat_interval(self):
self.conn.transport.get_heartbeat_interval = Mock(name='ghi')
assert (self.conn.get_heartbeat_interval() is
self.conn.transport.get_heartbeat_interval.return_value)
self.conn.transport.get_heartbeat_interval.assert_called_with(
self.conn.connection)
def test_supports_exchange_type(self):
self.conn.transport.implements.exchange_type = {'topic'}
assert self.conn.supports_exchange_type('topic')
assert not self.conn.supports_exchange_type('fanout')
def test_qos_semantics_matches_spec(self):
qsms = self.conn.transport.qos_semantics_matches_spec = Mock()
assert self.conn.qos_semantics_matches_spec is qsms.return_value
qsms.assert_called_with(self.conn.connection)
def test__enter____exit__(self):
conn = self.conn
context = conn.__enter__()
assert context is conn
conn.connect()
assert conn.connection.connected
conn.__exit__()
assert conn.connection is None
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()
assert 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_auto_reconnect_default_channel(self):
# tests GH issue: #1208
# Tests that default_channel automatically reconnects when connection
# closed
c = Connection('memory://')
c._closed = True
with patch.object(c,
'_connection_factory',
side_effect=c._connection_factory) as cf_mock:
c.default_channel
cf_mock.assert_called_once_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()
assert conn._default_channel is None
def test_ensure_connection(self):
assert self.conn.ensure_connection()
def test_ensure_success(self):
def publish():
return 'foobar'
ensured = self.conn.ensure(None, publish)
assert ensured() == 'foobar'
def test_ensure_failure(self):
class _CustomError(Exception):
pass
def publish():
raise _CustomError('bar')
ensured = self.conn.ensure(None, publish)
with pytest.raises(_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 pytest.raises(OperationalError):
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()
myfun.assert_called()
def test_SimpleQueue(self):
conn = self.conn
q = conn.SimpleQueue('foo')
assert q.channel is conn.default_channel
chan = conn.channel()
q2 = conn.SimpleQueue('foo', channel=chan)
assert q2.channel is chan
def test_SimpleBuffer(self):
conn = self.conn
q = conn.SimpleBuffer('foo')
assert q.channel is conn.default_channel
chan = conn.channel()
q2 = conn.SimpleBuffer('foo', channel=chan)
assert q2.channel is chan
def test_SimpleQueue_with_parameters(self):
conn = self.conn
q = conn.SimpleQueue('foo', True, {'durable': True},
{'x-queue-mode': 'lazy'}, {
'durable': True,
'type': 'fanout',
'delivery_mode': 'persistent'
})
assert q.queue.exchange.type == 'fanout'
assert q.queue.exchange.durable
assert not q.queue.exchange.auto_delete
delivery_mode_code = q.queue.exchange.PERSISTENT_DELIVERY_MODE
assert q.queue.exchange.delivery_mode == delivery_mode_code
assert q.queue.queue_arguments['x-queue-mode'] == 'lazy'
assert q.queue.durable
assert not q.queue.auto_delete
def test_SimpleBuffer_with_parameters(self):
conn = self.conn
q = conn.SimpleBuffer('foo', True, {'durable': True},
{'x-queue-mode': 'lazy'}, {
'durable': True,
'type': 'fanout',
'delivery_mode': 'persistent'
})
assert q.queue.exchange.type == 'fanout'
assert q.queue.exchange.durable
assert q.queue.exchange.auto_delete
delivery_mode_code = q.queue.exchange.PERSISTENT_DELIVERY_MODE
assert q.queue.exchange.delivery_mode == delivery_mode_code
assert q.queue.queue_arguments['x-queue-mode'] == 'lazy'
assert q.queue.durable
assert q.queue.auto_delete
def test_Producer(self):
conn = self.conn
assert isinstance(conn.Producer(), Producer)
assert isinstance(conn.Producer(conn.default_channel), Producer)
def test_Consumer(self):
conn = self.conn
assert isinstance(conn.Consumer(queues=[]), Consumer)
assert isinstance(
conn.Consumer(queues=[], channel=conn.default_channel), Consumer)
def test__repr__(self):
assert repr(self.conn)
def test__reduce__(self):
x = pickle.loads(pickle.dumps(self.conn))
assert x.info() == self.conn.info()
def test_channel_errors(self):
class MyTransport(Transport):
channel_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
assert conn.channel_errors == (KeyError, ValueError)
def test_connection_errors(self):
class MyTransport(Transport):
connection_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
assert conn.connection_errors == (KeyError, ValueError)
def test_multiple_urls_hostname(self):
conn = Connection(['example.com;amqp://example.com'])
assert conn.as_uri() == 'amqp://*****:*****@example.com:5672//'
conn = Connection(['example.com', 'amqp://example.com'])
assert conn.as_uri() == 'amqp://*****:*****@example.com:5672//'
conn = Connection('example.com;example.com;')
assert conn.as_uri() == 'amqp://*****:*****@example.com:5672//'
class test_Connection(TestCase):
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__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()
myfun.__name__ = 'test_autoretry'
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(TestCase):
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__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()
myfun.__name__ = 'test_autoretry'
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:
def setup(self):
self.conn = Connection(port=5672, transport=Transport)
def test_establish_connection(self):
conn = self.conn
conn.connect()
assert conn.connection.connected
assert conn.host == 'localhost:5672'
channel = conn.channel()
assert channel.open
assert conn.drain_events() == 'event'
_connection = conn.connection
conn.close()
assert not _connection.connected
assert isinstance(conn.transport, Transport)
def test_multiple_urls(self):
conn1 = Connection('amqp://foo;amqp://bar')
assert conn1.hostname == 'foo'
assert conn1.alt == ['amqp://foo', 'amqp://bar']
conn2 = Connection(['amqp://foo', 'amqp://bar'])
assert conn2.hostname == 'foo'
assert 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()
_close.assert_not_called()
_collect.assert_called_with(uconn)
connection.declared_entities.clear.assert_called_with()
assert trans.client is None
assert connection._transport is None
assert connection._connection is None
def test_collect_no_transport(self):
connection = Connection('memory://')
connection._transport = None
connection._do_close_self = Mock()
connection._do_close_transport = Mock()
connection.collect()
connection._do_close_self.assert_called_with()
connection._do_close_transport.assert_called_with()
connection._do_close_self.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)
assert connection._transport is None
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')
assert c.transport_cls == 'foo'
parse_url.assert_not_called()
assert c.hostname == 'mysql://some_host'
assert c.as_uri().startswith('foo+')
with patch('kombu.connection.parse_url') as parse_url:
c = Connection('mysql://some_host', transport='foo')
assert c.transport_cls == 'foo'
parse_url.assert_not_called()
assert c.hostname == 'mysql://some_host'
c = Connection('pyamqp+sqlite://some_host')
assert 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)
logger.error.assert_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()
rot.assert_called()
args = rot.call_args[0]
cb = args[4]
intervals = iter([1, 2, 3, 4, 5])
assert cb(KeyError(), intervals, 0) == 0
assert cb(KeyError(), intervals, 1) == 1
assert cb(KeyError(), intervals, 2) == 0
assert cb(KeyError(), intervals, 3) == 2
assert cb(KeyError(), intervals, 4) == 0
assert cb(KeyError(), intervals, 5) == 3
assert cb(KeyError(), intervals, 6) == 0
assert cb(KeyError(), intervals, 7) == 4
errback = Mock()
c.ensure_connection(errback=errback)
args = rot.call_args[0]
cb = args[4]
assert cb(KeyError(), intervals, 0) == 0
errback.assert_called()
def test_supports_heartbeats(self):
c = Connection(transport=Mock)
c.transport.implements.heartbeats = False
assert not c.supports_heartbeats
def test_is_evented(self):
c = Connection(transport=Mock)
c.transport.implements.async = False
assert not 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)
assert c.manager is c.transport.manager
def test_copy(self):
c = Connection('amqp://example.com')
assert copy(c).info() == c.info()
def test_copy_multiples(self):
c = Connection('amqp://A.example.com;amqp://B.example.com')
assert c.alt
d = copy(c)
assert d.alt == c.alt
def test_switch(self):
c = Connection('amqp://foo')
c._closed = True
c.switch('redis://example.com//3')
assert not c._closed
assert c.hostname == 'example.com'
assert c.transport_cls == 'redis'
assert c.virtual_host == '/3'
def test_maybe_switch_next(self):
c = Connection('amqp://foo;redis://example.com//3')
c.maybe_switch_next()
assert not c._closed
assert c.hostname == 'example.com'
assert c.transport_cls == 'redis'
assert c.virtual_host == '/3'
def test_maybe_switch_next_no_cycle(self):
c = Connection('amqp://foo')
c.maybe_switch_next()
assert not c._closed
assert c.hostname == 'foo'
assert c.transport_cls, ('librabbitmq', 'pyamqp' in '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://')
assert c.completes_cycle(0)
assert c.completes_cycle(1)
def test_completes_cycle(self):
c = Connection('amqp://a;amqp://b;amqp://c')
assert not c.completes_cycle(0)
assert not c.completes_cycle(1)
assert c.completes_cycle(2)
def test_get_heartbeat_interval(self):
self.conn.transport.get_heartbeat_interval = Mock(name='ghi')
assert (self.conn.get_heartbeat_interval() is
self.conn.transport.get_heartbeat_interval.return_value)
self.conn.transport.get_heartbeat_interval.assert_called_with(
self.conn.connection)
def test_supports_exchange_type(self):
self.conn.transport.implements.exchange_type = {'topic'}
assert self.conn.supports_exchange_type('topic')
assert not self.conn.supports_exchange_type('fanout')
def test_qos_semantics_matches_spec(self):
qsms = self.conn.transport.qos_semantics_matches_spec = Mock()
assert self.conn.qos_semantics_matches_spec is qsms.return_value
qsms.assert_called_with(self.conn.connection)
def test__enter____exit__(self):
conn = self.conn
context = conn.__enter__()
assert context is conn
conn.connect()
assert conn.connection.connected
conn.__exit__()
assert conn.connection is None
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()
assert 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()
assert conn._default_channel is None
def test_ensure_connection(self):
assert self.conn.ensure_connection()
def test_ensure_success(self):
def publish():
return 'foobar'
ensured = self.conn.ensure(None, publish)
assert ensured() == 'foobar'
def test_ensure_failure(self):
class _CustomError(Exception):
pass
def publish():
raise _CustomError('bar')
ensured = self.conn.ensure(None, publish)
with pytest.raises(_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 pytest.raises(OperationalError):
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()
myfun.assert_called()
def test_SimpleQueue(self):
conn = self.conn
q = conn.SimpleQueue('foo')
assert q.channel is conn.default_channel
chan = conn.channel()
q2 = conn.SimpleQueue('foo', channel=chan)
assert q2.channel is chan
def test_SimpleBuffer(self):
conn = self.conn
q = conn.SimpleBuffer('foo')
assert q.channel is conn.default_channel
chan = conn.channel()
q2 = conn.SimpleBuffer('foo', channel=chan)
assert q2.channel is chan
def test_Producer(self):
conn = self.conn
assert isinstance(conn.Producer(), Producer)
assert isinstance(conn.Producer(conn.default_channel), Producer)
def test_Consumer(self):
conn = self.conn
assert isinstance(conn.Consumer(queues=[]), Consumer)
assert isinstance(
conn.Consumer(queues=[], channel=conn.default_channel),
Consumer)
def test__repr__(self):
assert repr(self.conn)
def test__reduce__(self):
x = pickle.loads(pickle.dumps(self.conn))
assert x.info() == self.conn.info()
def test_channel_errors(self):
class MyTransport(Transport):
channel_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
assert conn.channel_errors == (KeyError, ValueError)
def test_connection_errors(self):
class MyTransport(Transport):
connection_errors = (KeyError, ValueError)
conn = Connection(transport=MyTransport)
assert conn.connection_errors == (KeyError, ValueError)