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from __future__ import annotations
import base64
import json
import random
from collections import namedtuple
from queue import Empty
from unittest.mock import MagicMock, patch
import pytest
from kombu import Connection, Exchange, Queue, messaging
pytest.importorskip('azure.servicebus')
import azure.core.exceptions # noqa
import azure.servicebus.exceptions # noqa
from azure.servicebus import ServiceBusMessage, ServiceBusReceiveMode # noqa
from kombu.transport import azureservicebus # noqa
class ASBQueue:
def __init__(self, kwargs):
self.options = kwargs
self.items = []
self.waiting_ack = []
self.send_calls = []
self.recv_calls = []
def get_receiver(self, kwargs):
receive_mode = kwargs.get(
'receive_mode', ServiceBusReceiveMode.PEEK_LOCK)
class Receiver:
def close(self):
pass
def receive_messages(_self, **kwargs2):
max_message_count = kwargs2.get('max_message_count', 1)
result = []
if self.items:
while self.items or len(result) > max_message_count:
item = self.items.pop(0)
if receive_mode is ServiceBusReceiveMode.PEEK_LOCK:
self.waiting_ack.append(item)
result.append(item)
self.recv_calls.append({
'receiver_options': kwargs,
'receive_messages_options': kwargs2,
'messages': result
})
return result
return Receiver()
def get_sender(self):
class Sender:
def close(self):
pass
def send_messages(_self, msg):
self.send_calls.append(msg)
self.items.append(msg)
return Sender()
class ASBMock:
def __init__(self):
self.queues = {}
def get_queue_receiver(self, queue_name, **kwargs):
return self.queues[queue_name].get_receiver(kwargs)
def get_queue_sender(self, queue_name, **kwargs):
return self.queues[queue_name].get_sender()
class ASBMgmtMock:
def __init__(self, queues):
self.queues = queues
def create_queue(self, queue_name, **kwargs):
if queue_name in self.queues:
raise azure.core.exceptions.ResourceExistsError()
self.queues[queue_name] = ASBQueue(kwargs)
def delete_queue(self, queue_name):
self.queues.pop(queue_name, None)
def get_queue_runtime_properties(self, queue_name):
count = len(self.queues[queue_name].items)
mock = MagicMock()
mock.total_message_count = count
return mock
URL_NOCREDS = 'azureservicebus://'
URL_CREDS = 'azureservicebus://policyname:ke/y@hostname'
def test_queue_service_nocredentials():
conn = Connection(URL_NOCREDS, transport=azureservicebus.Transport)
with pytest.raises(ValueError) as exc:
conn.channel()
assert exc == 'Need an URI like azureservicebus://{SAS policy name}:{SAS key}@{ServiceBus Namespace}' # noqa
def test_queue_service():
# Test gettings queue service without credentials
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
with patch('kombu.transport.azureservicebus.ServiceBusClient') as m:
channel = conn.channel()
# Check the SAS token "ke/y" has been parsed from the url correctly
assert channel._sas_key == 'ke/y'
m.from_connection_string.return_value = 'test'
# Remove queue service to get from service bus again
channel._queue_service = None
assert channel.queue_service == 'test'
assert m.from_connection_string.call_count == 1
# Ensure that queue_service is cached
assert channel.queue_service == 'test'
assert m.from_connection_string.call_count == 1
def test_conninfo():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
assert channel.conninfo is conn
def test_transport_type():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
assert not channel.transport_options
def test_default_wait_timeout_seconds():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
assert channel.wait_time_seconds == \
azureservicebus.Channel.default_wait_time_seconds
def test_custom_wait_timeout_seconds():
conn = Connection(
URL_CREDS,
transport=azureservicebus.Transport,
transport_options={'wait_time_seconds': 10}
)
channel = conn.channel()
assert channel.wait_time_seconds == 10
def test_default_peek_lock_seconds():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
assert channel.peek_lock_seconds == \
azureservicebus.Channel.default_peek_lock_seconds
def test_custom_peek_lock_seconds():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport,
transport_options={'peek_lock_seconds': 65})
channel = conn.channel()
assert channel.peek_lock_seconds == 65
def test_invalid_peek_lock_seconds():
# Max is 300
conn = Connection(URL_CREDS, transport=azureservicebus.Transport,
transport_options={'peek_lock_seconds': 900})
channel = conn.channel()
assert channel.peek_lock_seconds == 300
@pytest.fixture
def random_queue():
return f'azureservicebus_queue_{random.randint(1000, 9999)}'
@pytest.fixture
def mock_asb():
return ASBMock()
@pytest.fixture
def mock_asb_management(mock_asb):
return ASBMgmtMock(queues=mock_asb.queues)
MockQueue = namedtuple(
'MockQueue',
['queue_name', 'asb', 'asb_mgmt', 'conn', 'channel', 'producer', 'queue']
)
@pytest.fixture(autouse=True)
def sbac_class_patch():
with patch('kombu.transport.azureservicebus.ServiceBusAdministrationClient') as sbac: # noqa
yield sbac
@pytest.fixture(autouse=True)
def sbc_class_patch():
with patch('kombu.transport.azureservicebus.ServiceBusClient') as sbc: # noqa
yield sbc
@pytest.fixture(autouse=True)
def mock_clients(
sbc_class_patch,
sbac_class_patch,
mock_asb,
mock_asb_management
):
sbc_class_patch.from_connection_string.return_value = mock_asb
sbac_class_patch.from_connection_string.return_value = mock_asb_management
@pytest.fixture
def mock_queue(mock_asb, mock_asb_management, random_queue) -> MockQueue:
exchange = Exchange('test_servicebus', type='direct')
queue = Queue(random_queue, exchange, random_queue)
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
queue(channel).declare()
producer = messaging.Producer(channel, exchange, routing_key=random_queue)
return MockQueue(
random_queue,
mock_asb,
mock_asb_management,
conn,
channel,
producer,
queue
)
def test_basic_put_get(mock_queue: MockQueue):
text_message = "test message"
# This ends up hitting channel._put
mock_queue.producer.publish(text_message)
assert len(mock_queue.asb.queues[mock_queue.queue_name].items) == 1
azure_msg = mock_queue.asb.queues[mock_queue.queue_name].items[0]
assert isinstance(azure_msg, ServiceBusMessage)
message = mock_queue.channel._get(mock_queue.queue_name)
azure_msg_decoded = json.loads(str(azure_msg))
assert message['body'] == azure_msg_decoded['body']
# Check the message has been annotated with the azure message object
# which is used to ack later
assert message['properties']['delivery_info']['azure_message'] is azure_msg
assert base64.b64decode(message['body']).decode() == text_message
# Ack is on by default, check an ack is waiting
assert len(mock_queue.asb.queues[mock_queue.queue_name].waiting_ack) == 1
def test_empty_queue_get(mock_queue: MockQueue):
with pytest.raises(Empty):
mock_queue.channel._get(mock_queue.queue_name)
def test_delete_empty_queue(mock_queue: MockQueue):
chan = mock_queue.channel
queue_name = f'random_queue_{random.randint(1000, 9999)}'
chan._new_queue(queue_name)
assert queue_name in chan._queue_cache
chan._delete(queue_name)
assert queue_name not in chan._queue_cache
def test_delete_populated_queue(mock_queue: MockQueue):
mock_queue.producer.publish('test1234')
mock_queue.channel._delete(mock_queue.queue_name)
assert mock_queue.queue_name not in mock_queue.channel._queue_cache
def test_purge(mock_queue: MockQueue):
mock_queue.producer.publish('test1234')
mock_queue.producer.publish('test1234')
mock_queue.producer.publish('test1234')
mock_queue.producer.publish('test1234')
size = mock_queue.channel._size(mock_queue.queue_name)
assert size == 4
assert mock_queue.channel._purge(mock_queue.queue_name) == 4
size = mock_queue.channel._size(mock_queue.queue_name)
assert size == 0
assert len(mock_queue.asb.queues[mock_queue.queue_name].waiting_ack) == 0
def test_custom_queue_name_prefix():
conn = Connection(
URL_CREDS,
transport=azureservicebus.Transport,
transport_options={'queue_name_prefix': 'test-queue'}
)
channel = conn.channel()
assert channel.queue_name_prefix == 'test-queue'
def test_custom_entity_name():
conn = Connection(URL_CREDS, transport=azureservicebus.Transport)
channel = conn.channel()
# dashes allowed and dots replaced by dashes
assert channel.entity_name('test-celery') == 'test-celery'
assert channel.entity_name('test.celery') == 'test-celery'
# all other punctuations replaced by underscores
assert channel.entity_name('test_celery') == 'test_celery'
assert channel.entity_name('test:celery') == 'test_celery'
assert channel.entity_name('test+celery') == 'test_celery'
def test_basic_ack_complete_message(mock_queue: MockQueue):
mock_queue.producer.publish("test message")
message = mock_queue.channel._get(mock_queue.queue_name)
mock_queue.channel.qos.get = MagicMock(
return_value=mock_queue.channel.Message(
message, mock_queue.channel
)
)
receiver_mock = MagicMock()
receiver_mock.complete_message = MagicMock(return_value=None)
queue_object_mock = MagicMock()
queue_object_mock.receiver = receiver_mock
mock_queue.channel._get_asb_receiver = MagicMock(
return_value=queue_object_mock)
with patch(
'kombu.transport.virtual.base.Channel.basic_ack'
) as super_basic_ack:
mock_queue.channel.basic_ack("test_delivery_tag")
assert mock_queue.channel.qos.get.call_count == 1
assert mock_queue.channel._get_asb_receiver.call_count == 1
assert queue_object_mock.receiver.complete_message.call_count == 1
assert super_basic_ack.call_count == 1
def test_basic_ack_when_already_settled(mock_queue: MockQueue):
mock_queue.producer.publish("test message")
message = mock_queue.channel._get(mock_queue.queue_name)
mock_queue.channel.qos.get = MagicMock(
return_value=mock_queue.channel.Message(
message, mock_queue.channel
)
)
receiver_mock = MagicMock()
receiver_mock.complete_message = MagicMock(
side_effect=azure.servicebus.exceptions.MessageAlreadySettled())
queue_object_mock = MagicMock()
queue_object_mock.receiver = receiver_mock
mock_queue.channel._get_asb_receiver = MagicMock(
return_value=queue_object_mock)
with patch(
'kombu.transport.virtual.base.Channel.basic_ack'
) as super_basic_ack:
mock_queue.channel.basic_ack("test_delivery_tag")
assert mock_queue.channel.qos.get.call_count == 1
assert mock_queue.channel._get_asb_receiver.call_count == 1
assert queue_object_mock.receiver.complete_message.call_count == 1
assert super_basic_ack.call_count == 1
def test_basic_ack_when_qos_raises_keyerror(mock_queue: MockQueue):
"""Test that basic_ack calls super method when keyerror"""
mock_queue.channel.qos.get = MagicMock(side_effect=KeyError())
with patch(
'kombu.transport.virtual.base.Channel.basic_ack'
) as super_basic_ack:
mock_queue.channel.basic_ack("invented_delivery_tag")
assert super_basic_ack.call_count == 1
assert mock_queue.channel.qos.get.call_count == 1
def test_basic_ack_reject_message_when_raises_exception(
mock_queue: MockQueue
):
mock_queue.producer.publish("test message")
message = mock_queue.channel._get(mock_queue.queue_name)
mock_queue.channel.qos.get = MagicMock(
return_value=mock_queue.channel.Message(
message, mock_queue.channel
)
)
receiver_mock = MagicMock()
receiver_mock.complete_message = MagicMock(side_effect=Exception())
queue_object_mock = MagicMock()
queue_object_mock.receiver = receiver_mock
mock_queue.channel._get_asb_receiver = MagicMock(
return_value=queue_object_mock)
with patch(
'kombu.transport.virtual.base.Channel.basic_reject'
) as super_basic_reject:
mock_queue.channel.basic_ack("test_delivery_tag")
assert mock_queue.channel.qos.get.call_count == 1
assert mock_queue.channel._get_asb_receiver.call_count == 1
assert queue_object_mock.receiver.complete_message.call_count == 1
assert super_basic_reject.call_count == 1
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