def make_handler(queue_consumer, service_name="srcservice",
event_type="eventtype", handler_type=SERVICE_POOL,
reliable_delivery=True, requeue_on_error=False):
handler = EventHandler(service_name, event_type, handler_type,
reliable_delivery, requeue_on_error)
handler.queue_consumer = queue_consumer
return handler
def make_handler(queue_consumer,
service_name="srcservice",
event_type="eventtype",
handler_type=SERVICE_POOL,
reliable_delivery=True,
requeue_on_error=False):
handler = EventHandler(service_name, event_type, handler_type,
reliable_delivery, requeue_on_error)
handler.queue_consumer = queue_consumer
return handler
def test_event_handler(queue_consumer, mock_container):
container = mock_container
container.service_name = "destservice"
# test default configuration
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert event_handler.queue.durable is True
assert event_handler.queue.routing_key == "eventtype"
assert event_handler.queue.exchange.name == "srcservice.events"
queue_consumer.register_provider.assert_called_once_with(event_handler)
# test service pool handler
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert (event_handler.queue.name ==
"evt-srcservice-eventtype--destservice.foobar")
# test broadcast handler
event_handler = EventHandler("srcservice",
"eventtype",
handler_type=BROADCAST).bind(
container, "foobar")
event_handler.setup()
assert event_handler.queue.name.startswith("evt-srcservice-eventtype-")
# test singleton handler
event_handler = EventHandler("srcservice",
"eventtype",
handler_type=SINGLETON).bind(
container, "foobar")
event_handler.setup()
assert event_handler.queue.name == "evt-srcservice-eventtype"
# test reliable delivery
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert event_handler.queue.auto_delete is False
def test_event_hander_reliable_delivery_defaults():
handler = EventHandler("srcservice", "eventtype")
assert handler.handler_type is SERVICE_POOL
assert handler.reliable_delivery is True
handler = EventHandler("srcservice", "eventtype", handler_type=BROADCAST)
assert handler.handler_type is BROADCAST
assert handler.reliable_delivery is False
handler = EventHandler("srcservice", "eventtype", handler_type=SINGLETON)
assert handler.handler_type is SINGLETON
assert handler.reliable_delivery is True
with pytest.raises(EventHandlerConfigurationError):
EventHandler("srcservice",
"eventtype",
reliable_delivery=True,
handler_type=BROADCAST)
def test_raises_with_default_broadcast_identity(self, queue_consumer,
mock_container):
container = mock_container
container.service_name = "destservice"
# test broadcast handler with reliable delivery
with pytest.raises(EventHandlerConfigurationError):
EventHandler("srcservice",
"eventtype",
handler_type=BROADCAST,
reliable_delivery=True).bind(container, "foobar")
def test_event_handler(queue_consumer, mock_container):
container = mock_container
container.service_name = "destservice"
# test default configuration
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert event_handler.queue.durable is True
assert event_handler.queue.routing_key == "eventtype"
assert event_handler.queue.exchange.name == "srcservice.events"
queue_consumer.register_provider.assert_called_once_with(event_handler)
# test service pool handler
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert event_handler.queue.name == (
"evt-srcservice-eventtype--destservice.foobar")
assert event_handler.queue.exclusive is False
# test broadcast handler with default identifier
with patch('nameko.events.uuid') as mock_uuid:
mock_uuid.uuid4().hex = "uuid-value"
event_handler = EventHandler("srcservice",
"eventtype",
handler_type=BROADCAST,
reliable_delivery=False).bind(
container, "foobar")
event_handler.setup()
assert event_handler.queue.name == (
"evt-srcservice-eventtype--destservice.foobar-{}".format("uuid-value"))
assert event_handler.queue.exclusive is True
# test broadcast handler with custom identifier
class BroadcastEventHandler(EventHandler):
broadcast_identifier = "testbox"
event_handler = BroadcastEventHandler("srcservice",
"eventtype",
handler_type=BROADCAST).bind(
container, "foobar")
event_handler.setup()
assert event_handler.queue.name == (
"evt-srcservice-eventtype--destservice.foobar-{}".format("testbox"))
assert event_handler.queue.exclusive is False
# test singleton handler
event_handler = EventHandler("srcservice",
"eventtype",
handler_type=SINGLETON).bind(
container, "foobar")
event_handler.setup()
assert event_handler.queue.name == "evt-srcservice-eventtype"
assert event_handler.queue.exclusive is False
# test reliable delivery
event_handler = EventHandler("srcservice",
"eventtype").bind(container, "foobar")
event_handler.setup()
assert event_handler.queue.auto_delete is False
