def test_n_extra_in_discard(fake_socket):
address = ("127.0.0.1", 7687)
socket = fake_socket(address)
connection = Bolt4x1(address, socket, PoolConfig.max_connection_lifetime)
connection.discard(n=666)
connection.send_all()
tag, fields = socket.pop_message()
assert tag == b"\x2F"
assert len(fields) == 1
assert fields[0] == {"n": 666}
def test_qid_extra_in_discard(fake_socket, test_input, expected):
address = ("127.0.0.1", 7687)
socket = fake_socket(address)
connection = Bolt4x1(address, socket, PoolConfig.max_connection_lifetime)
connection.discard(qid=test_input)
connection.send_all()
tag, fields = socket.pop_message()
assert tag == b"\x2F"
assert len(fields) == 1
assert fields[0] == expected
def test_n_and_qid_extras_in_pull(fake_socket):
address = ("127.0.0.1", 7687)
socket = fake_socket(address)
connection = Bolt4x1(address, socket, PoolConfig.max_connection_lifetime)
connection.pull(n=666, qid=777)
connection.send_all()
tag, fields = socket.pop_message()
assert tag == b"\x3F"
assert len(fields) == 1
assert fields[0] == {"n": 666, "qid": 777}
def test_db_extra_in_begin(fake_socket):
address = ("127.0.0.1", 7687)
socket = fake_socket(address)
connection = Bolt4x1(address, socket, PoolConfig.max_connection_lifetime)
connection.begin(db="something")
connection.send_all()
tag, fields = socket.pop_message()
assert tag == b"\x11"
assert len(fields) == 1
assert fields[0] == {"db": "something"}
def test_qid_extra_in_pull(fake_socket, test_input, expected):
# python -m pytest tests/unit/io/test_class_bolt4x0.py -s -k test_qid_extra_in_pull
address = ("127.0.0.1", 7687)
socket = fake_socket(address)
connection = Bolt4x1(address, socket, PoolConfig.max_connection_lifetime)
connection.pull(qid=test_input)
connection.send_all()
tag, fields = socket.pop_message()
assert tag == b"\x3F"
assert len(fields) == 1
assert fields[0] == expected
def test_hello_passes_routing_metadata(fake_socket_pair):
address = ("127.0.0.1", 7687)
sockets = fake_socket_pair(address)
sockets.server.send_message(0x70, {"server": "Neo4j/4.1.0"})
connection = Bolt4x1(address, sockets.client, PoolConfig.max_connection_lifetime,
routing_context={"foo": "bar"})
connection.hello()
tag, fields = sockets.server.pop_message()
assert tag == 0x01
assert len(fields) == 1
assert fields[0]["routing"] == {"foo": "bar"}
def test_hello_passes_routing_metadata(fake_socket_pair):
address = ("127.0.0.1", 7687)
sockets = fake_socket_pair(address)
# TODO helper method for encoding messages
sockets.server.sendall(b"\x00\x03\xB1\x70\xA0\x00\x00")
connection = Bolt4x1(address,
sockets.client,
PoolConfig.max_connection_lifetime,
routing_context={"foo": "bar"})
connection.hello()
tag, fields = sockets.server.pop_message()
assert tag == 0x01
assert len(fields) == 1
assert fields[0]["routing"] == {"foo": "bar"}
def test_conn_not_timed_out(fake_socket):
address = ("127.0.0.1", 7687)
max_connection_lifetime = 999999999
connection = Bolt4x1(address, fake_socket(address),
max_connection_lifetime)
assert connection.timedout() is False
def open(cls,
address,
*,
auth=None,
timeout=None,
routing_context=None,
**pool_config):
""" Open a new Bolt connection to a given server address.
:param address:
:param auth:
:param timeout: the connection timeout in seconds
:param routing_context: dict containing routing context
:param pool_config:
:return:
:raise BoltHandshakeError: raised if the Bolt Protocol can not negotiate a protocol version.
:raise ServiceUnavailable: raised if there was a connection issue.
"""
pool_config = PoolConfig.consume(pool_config)
s, pool_config.protocol_version, handshake, data = connect(
address,
timeout=timeout,
custom_resolver=pool_config.resolver,
ssl_context=pool_config.get_ssl_context(),
keep_alive=pool_config.keep_alive,
)
if pool_config.protocol_version == (3, 0):
# Carry out Bolt subclass imports locally to avoid circular dependency issues.
from neo4j.io._bolt3 import Bolt3
connection = Bolt3(address,
s,
pool_config.max_connection_lifetime,
auth=auth,
user_agent=pool_config.user_agent,
routing_context=routing_context)
elif pool_config.protocol_version == (4, 0):
# Carry out Bolt subclass imports locally to avoid circular dependency issues.
from neo4j.io._bolt4 import Bolt4x0
connection = Bolt4x0(address,
s,
pool_config.max_connection_lifetime,
auth=auth,
user_agent=pool_config.user_agent,
routing_context=routing_context)
elif pool_config.protocol_version == (4, 1):
# Carry out Bolt subclass imports locally to avoid circular dependency issues.
from neo4j.io._bolt4 import Bolt4x1
connection = Bolt4x1(address,
s,
pool_config.max_connection_lifetime,
auth=auth,
user_agent=pool_config.user_agent,
routing_context=routing_context)
elif pool_config.protocol_version == (4, 2):
# Carry out Bolt subclass imports locally to avoid circular dependency issues.
from neo4j.io._bolt4 import Bolt4x2
connection = Bolt4x2(address,
s,
pool_config.max_connection_lifetime,
auth=auth,
user_agent=pool_config.user_agent,
routing_context=routing_context)
else:
log.debug("[#%04X] S: <CLOSE>", s.getpeername()[1])
s.shutdown(SHUT_RDWR)
s.close()
supported_versions = Bolt.protocol_handlers().keys()
raise BoltHandshakeError(
"The Neo4J server does not support communication with this driver. This driver have support for Bolt Protocols {}"
.format(supported_versions),
address=address,
request_data=handshake,
response_data=data)
try:
connection.hello()
except Exception as error:
log.debug("[#%04X] C: <CLOSE> %s", s.getsockname()[1], str(error))
s.shutdown(SHUT_RDWR)
s.close()
raise error
return connection