pyinfra/test/unit_tests/consumer_test.py
2022-06-14 14:17:08 +02:00

114 lines
3.9 KiB
Python

import logging
from operator import itemgetter
import pytest
from funcy import lmapcat
from pyinfra.exceptions import ProcessingFailure
from pyinfra.utils.encoding import pack_for_upload
from pyinfra.visitor import get_object_descriptor, ForwardingStrategy
logger = logging.getLogger()
class TestConsumer:
@pytest.mark.parametrize("queue_manager_name", ["mock", "pika"], scope="session")
def test_consuming_empty_input_queue_does_not_put_anything_on_output_queue(self, consumer, queue_manager):
queue_manager.clear()
consumer.consume()
assert queue_manager.output_queue.empty()
@pytest.mark.parametrize(
"queue_manager_name",
[
"pika", # NOTE: pika must come first. Test fails IFF pika is in second place, for whatever reason.
"mock",
],
scope="session",
)
def test_consuming_nonempty_input_queue_puts_messages_on_output_queue_in_fifo_order(
self, consumer, queue_manager, callback, queue_manager_name
):
assert consumer.queue_manager is queue_manager
def produce_items():
return map(str, range(4))
def mock_visitor(callback):
def inner(data):
return callback({"data": data.encode()})
return inner
callback = mock_visitor(callback)
queue_manager.clear()
for item in produce_items():
queue_manager.publish_request(item)
requests = consumer.consume(n=4)
for r in requests:
queue_manager.publish_response(r, callback)
assert queue_manager.output_queue.to_list()[:3] == ["00", "11", "22"]
@pytest.mark.parametrize("queue_manager_name", ["mock", "pika"], scope="session")
@pytest.mark.parametrize("client_name", ["mock", "s3", "azure"], scope="session")
@pytest.mark.parametrize("response_strategy_name", ["forwarding", "storage"], scope="session")
def test_consuming_nonempty_input_queue_with_visitor_puts_messages_on_output_queue_in_fifo_order(
self, consumer, queue_manager, visitor, bucket_name, storage, items, input_data_encoder
):
visitor.response_strategy = ForwardingStrategy()
queue_manager.clear()
storage.clear_bucket(bucket_name)
for data, message in items:
storage.put_object(**get_object_descriptor(message), data=pack_for_upload(data))
queue_manager.publish_request(message)
requests = consumer.consume(inactivity_timeout=5)
for itm, req in zip(items, requests):
logger.debug(f"Processing item {itm}")
queue_manager.publish_response(req, visitor)
assert lmapcat(itemgetter("data"), queue_manager.output_queue.to_list()) == ["00", "11", "22"]
@pytest.mark.parametrize("queue_manager_name", ["pika"], scope="session")
def test_message_is_republished_when_callback_raises_processing_failure_exception(
self, consumer, queue_manager, bucket_name, items
):
class DebugError(Exception):
pass
def callback(_):
raise ProcessingFailure
def reject_patch(*args, **kwargs):
raise DebugError
queue_manager.reject = reject_patch
queue_manager.clear()
for data, message in items:
queue_manager.publish_request(message)
requests = consumer.consume()
logger = logging.getLogger("pyinfra.queue.queue_manager.pika_queue_manager")
logger.addFilter(lambda record: False)
# TODO:
# Note above says order of mock and pika matters. Note, that you can produce an error for debugging, when
# using `queue_manager.publish_response(next(requests), callback)` without the-with and while-block, where it
# becomes obvious, that the test with the note above then uses the data from THIS here test.
with pytest.raises(DebugError):
while True:
queue_manager.publish_response(next(requests), callback)