def test_should_store_consumer_react_to_chaos_with_nck_simulation_and_send_several_event_to_dead_letter():
spy = SpyEvents()
spy_dead_letter_store = SpyEvents()
logger = FakeLogger()
def assert_consumer(event: Event) -> Result[bool, Error]:
spy.append(event)
return isSuccess
def assert_dead_letter_store_consumer(event: Event) -> Result[bool, Error]:
spy_dead_letter_store.append(event)
return isSuccess
configurer = RabbitMqEventConfigurerMother.with_main_and_retry_ttl_10ms()
configurer.configure()
bus = RabbitMqEventBusMother.default()
event_ids = []
for _ in range(5):
event = EventUserCreatedMother.random()
event_ids.append(event.event_id)
bus.publish(event)
max_retries_allowed = 5
chaos = RabbitMqEventChaos(percentage_simulate_nack=1.0)
consumer_with_chaos = RabbitMqEventConsumerMother.with_chaos(
chaos, max_retries_allowed, logger
)
consumer_with_chaos.add_handler_on_store(assert_consumer)
consumer_with_chaos.start()
sleep(1.0)
consumer_with_chaos.stop()
consumer_without_chaos = RabbitMqEventConsumerMother.default()
consumer_without_chaos.add_handler_on_queue(
"dead_letter.store", assert_dead_letter_store_consumer
)
consumer_without_chaos.start()
sleep(1.0)
consumer_without_chaos.stop()
configurer.clear()
for event_id in event_ids:
spy.assert_count_by_event_id(event_id, 0) # Rejected before by Event Chaos
spy_dead_letter_store.assert_count_by_event_id(event_id, 1)
def test_should_consumer_react_to_chaos_with_nck_simulation_and_send_event_to_dead_letter():
spy = SpyEvents()
spy_dead_letter = SpyEvents()
spy_dead_letter_store = SpyEvents()
logger = FakeLogger()
def assert_consumer(event: Event) -> Result[bool, Error]:
spy.append(event)
return isSuccess
def assert_dead_letter_consumer(event: Event) -> Result[bool, Error]:
spy_dead_letter.append(event)
return isSuccess
def assert_dead_letter_store_consumer(event: Event) -> Result[bool, Error]:
spy_dead_letter_store.append(event)
return isSuccess
event = EventUserCreatedMother.random()
subscribers = [
EventSubscriber(
event_name=event.event_name,
event_version=event.event_version,
handlers=[assert_consumer],
)
]
configurer = RabbitMqEventConfigurerMother.with_main_and_retry_ttl_10ms()
configurer.configure_subscribers(subscribers)
bus = RabbitMqEventBusMother.default()
bus.publish(event)
max_retries_allowed = 5
chaos = RabbitMqEventChaos(percentage_simulate_nack=1.0)
consumer_with_chaos = RabbitMqEventConsumerMother.with_chaos(
chaos, max_retries_allowed, logger
)
consumer_with_chaos.add_subscribers(subscribers)
consumer_with_chaos.start()
sleep(1.0)
consumer_with_chaos.stop()
consumer_without_chaos = RabbitMqEventConsumerMother.default()
consumer_without_chaos.add_handler_on_queue(
"dead_letter.alice.petisco.1.event.user_created.assert_consumer",
assert_dead_letter_consumer,
)
consumer_without_chaos.add_handler_on_queue(
"dead_letter.store", assert_dead_letter_store_consumer
)
consumer_without_chaos.start()
sleep(1.0)
consumer_without_chaos.stop()
configurer.clear()
spy.assert_count_by_event_id(event.event_id, 0) # Rejected before by Event Chaos
spy_dead_letter.assert_count_by_event_id(event.event_id, 1)
spy_dead_letter_store.assert_count_by_event_id(event.event_id, 1)