def test_onhandlerException_ackMessage_filterReservedHdrs_send2ErrorQ_and_no_disconnect(self):
config = StompConfig(HOST, PORT)
creator = StompCreator(config)
# Connect
stomp = yield creator.getConnection()
# Enqueue two messages
stomp.send(self.queue, self.msg1, self.msg1Hdrs)
stomp.send(self.queue, self.msg2)
# Barf on first msg, disconnect on second msg
stomp.subscribe(
self.queue,
self._barfOneEatOneAndDisonnect,
{"ack": "client-individual", "activemq.prefetchSize": 1},
errorDestination=self.errorQueue,
)
# Client disconnects without error
yield stomp.getDisconnectedDeferred()
# Reconnect and subscribe to error queue
stomp = yield creator.getConnection()
stomp.subscribe(
self.errorQueue, self._saveErrMsgAndDisconnect, {"ack": "client-individual", "activemq.prefetchSize": 1}
)
# Wait for disconnect
yield stomp.getDisconnectedDeferred()
# Verify that one message was in error queue (can't guarantee order)
self.assertNotEquals(None, self.errQMsg)
self.assertTrue(self.errQMsg["body"] in (self.msg1, self.msg2))
def test_onDisconnect_waitForOutstandingMessagesToFinish(self):
self.config = StompConfig(HOST, PORT)
self.creator = StompCreator(self.config)
config = StompConfig(HOST, PORT)
creator = StompCreator(config)
# Connect
stomp = yield creator.getConnection()
for i in range(self.numMsgs):
stomp.send(self.queue, self.msg)
stomp.subscribe(
self.queue, self._msgHandler, {"ack": "client-individual", "activemq.prefetchSize": self.numMsgs}
)
# Wait for disconnect
yield stomp.getDisconnectedDeferred()
# Reconnect and subscribe again to make sure that all messages in the queue were ack'ed
stomp = yield creator.getConnection()
self.timeExpired = False
self.timeoutDelayedCall = reactor.callLater(1, self._timesUp, stomp)
stomp.subscribe(
self.queue,
self._eatOneMsgAndDisconnect,
{"ack": "client-individual", "activemq.prefetchSize": self.numMsgs},
)
# Wait for disconnect
yield stomp.getDisconnectedDeferred()
# Time should have expired if there were no messages left in the queue
self.assertTrue(self.timeExpired)
class GracefulDisconnectTestCase(unittest.TestCase):
numMsgs = 5
msgCount = 0
msg = 'test'
queue = '/queue/aysncStompestGracefulDisconnectUnitTest'
disconnected = defer.Deferred()
disconnectedAgain = defer.Deferred()
ackMode = getClientAckMode()
def test_onDisconnect_waitForOutstandingMessagesToFinish(self):
self.config = StompConfig('localhost', 61613)
self.creator = StompCreator(self.config)
deferConnected = self.creator.getConnection().addCallback(self._onConnected)
self.disconnected.addCallback(self._reconnect)
self.disconnectedAgain.addCallback(self._verifyAllMsgsAcked)
return defer.DeferredList([
self.disconnected,
self.disconnectedAgain,
]
)
def _onConnected(self, stomp):
stomp.getDisconnectedDeferred().addCallback(self.disconnected.callback).addErrback(self.disconnected.errback)
for i in range(self.numMsgs):
stomp.send(self.queue, self.msg)
stomp.subscribe(self.queue, self._msgHandler, {'ack': self.ackMode, 'activemq.prefetchSize': self.numMsgs})
def _msgHandler(self, stomp, msg):
self.msgCount += 1
if self.msgCount < self.numMsgs:
d = defer.Deferred()
reactor.callLater(1, d.callback, None)
return d
else:
stomp.disconnect()
def _reconnect(self, result):
self.creator.getConnection().addCallback(self._onReconnect)
def _onReconnect(self, stomp):
stomp.getDisconnectedDeferred().addCallback(self.disconnectedAgain.callback).addErrback(self.disconnectedAgain.errback)
self.timeExpired = False
self.timeoutDelayedCall = reactor.callLater(1, self._timesUp, stomp)
stomp.subscribe(self.queue, self._eatOneMsgAndDisconnect, {'ack': self.ackMode, 'activemq.prefetchSize': self.numMsgs})
def _timesUp(self, stomp):
print "Times up!!!"
self.timeExpired = True
stomp.disconnect()
def _eatOneMsgAndDisconnect(self, stomp, msg):
self.timeoutDelayedCall.cancel()
stomp.disconnect()
def _verifyAllMsgsAcked(self, result):
print "VERIFY!"
self.assertTrue(self.timeExpired)
return result
def test_onhandlerException_ackMessage_filterReservedHdrs_send2ErrorQ_and_disconnect(self):
config = StompConfig(HOST, PORT)
creator = StompCreator(config, alwaysDisconnectOnUnhandledMsg=True)
# Connect
stomp = yield creator.getConnection()
# Enqueue two messages
stomp.send(self.queue, self.msg1, self.msg1Hdrs)
stomp.send(self.queue, self.msg2)
# Barf on first message so it will get put in error queue
# Use selector to guarantee message order. AMQ doesn't not guarantee order by default
stomp.subscribe(
self.queue,
self._saveMsgAndBarf,
{"ack": "client-individual", "activemq.prefetchSize": 1, "selector": "food = 'barf'"},
errorDestination=self.errorQueue,
)
# Client disconnected and returned error
try:
yield stomp.getDisconnectedDeferred()
except StompestTestError:
pass
else:
self.assertTrue(False)
# Reconnect and subscribe again - consuming second message then disconnecting
stomp = yield creator.getConnection()
stomp.subscribe(
self.queue,
self._eatOneMsgAndDisconnect,
{"ack": "client-individual", "activemq.prefetchSize": 1},
errorDestination=self.errorQueue,
)
# Client disconnects without error
yield stomp.getDisconnectedDeferred()
# Reconnect and subscribe to error queue
stomp = yield creator.getConnection()
stomp.subscribe(
self.errorQueue, self._saveErrMsgAndDisconnect, {"ack": "client-individual", "activemq.prefetchSize": 1}
)
# Wait for disconnect
yield stomp.getDisconnectedDeferred()
# Verify that first message was in error queue
self.assertEquals(self.msg1, self.errQMsg["body"])
self.assertEquals(self.msg1Hdrs["food"], self.errQMsg["headers"]["food"])
self.assertNotEquals(self.unhandledMsg["headers"]["message-id"], self.errQMsg["headers"]["message-id"])
# Verify that second message was consumed
self.assertEquals(self.msg2, self.consumedMsg["body"])
def test_onhandlerException_disconnect(self):
config = StompConfig(HOST, PORT)
creator = StompCreator(config)
# Connect
stomp = yield creator.getConnection()
# Enqueue a message
stomp.send(self.queue, self.msg1, self.msg1Hdrs)
# Barf on first msg (implicit disconnect)
stomp.subscribe(self.queue, self._saveMsgAndBarf, {"ack": "client-individual", "activemq.prefetchSize": 1})
# Client disconnected and returned error
try:
yield stomp.getDisconnectedDeferred()
except StompestTestError, e:
pass
def test_onDisconnect_waitForOutstandingMessagesToFinish(self):
self.config = StompConfig('localhost', 61613)
self.creator = StompCreator(self.config)
deferConnected = self.creator.getConnection().addCallback(self._onConnected)
self.disconnected.addCallback(self._reconnect)
self.disconnectedAgain.addCallback(self._verifyAllMsgsAcked)
return defer.DeferredList([
self.disconnected,
self.disconnectedAgain,
]
)
def test_onhandlerException_ackMessage_filterReservedHdrs_send2ErrorQ_and_errback(self):
self.cleanQueues()
self.config = StompConfig('localhost', 61613)
self.creator = StompCreator(self.config)
deferConnected = self.creator.getConnection().addCallback(self._onConnected)
deferredTestErr = self.assertFailure(self.disconnected, StompestTestError).addCallback(self._reconnectAfterErr)
self.disconnectedAgain.addCallback(self._reconnectForErrQ)
self.disconnectedFromErrQ.addCallback(self._verifyErrMsg) #asserts err message content is correct
return defer.DeferredList([
deferredTestErr, #asserts that handler exception triggered disconnect and was propagated to disconnect deferred
self.disconnectedAgain, #asserts that message causing the exception was ack'ed to broker (otherwise, this message would not get delivered)
self.disconnectedFromErrQ, #asserts that we were able to read a message from the error queue
]
)
def test_bad_port_tcp_error(self):
config = StompConfig('localhost', 65535)
creator = StompCreator(config)
return self.assertFailure(creator.getConnection(), error.ConnectionRefusedError)
def test_bad_host_tcp_error(self):
config = StompConfig('nosuchhost', 61613)
creator = StompCreator(config)
return self.assertFailure(creator.getConnection(), error.DNSLookupError)
def test_stomp_error_after_connected(self):
config = StompConfig('localhost', self.testPort)
creator = StompCreator(config)
creator.getConnection().addCallback(self.onConnected)
return self.assertFailure(self.disconnected, StompProtocolError)
def test_stomp_error_before_connected(self):
config = StompConfig('localhost', self.testPort)
creator = StompCreator(config)
return self.assertFailure(creator.getConnection(), StompProtocolError)
def test_connection_timeout(self):
config = StompConfig('localhost', self.testPort)
creator = StompCreator(config, connectTimeout=1)
return self.assertFailure(creator.getConnection(), StompConnectTimeout)
class HandlerExceptionWithErrorQueueIntegrationTestCase(unittest.TestCase):
msg1 = 'choke on this'
msg1Hdrs = {'food': 'barf', 'persistent': 'true'}
msg2 = 'follow up message'
queue = '/queue/asyncStompestHandlerExceptionWithErrorQueueUnitTest'
errorQueue = '/queue/zzz.error.asyncStompestHandlerExceptionWithErrorQueueUnitTest'
disconnected = defer.Deferred()
disconnectedAgain = defer.Deferred()
disconnectedFromErrQ = defer.Deferred()
ackMode = getClientAckMode()
def cleanQueues(self):
self.cleanQueue(self.queue)
self.cleanQueue(self.errorQueue)
def cleanQueue(self, queue):
stomp = Stomp('localhost', 61613)
stomp.connect()
stomp.subscribe(queue, {'ack': 'client'})
while stomp.canRead(1):
frame = stomp.receiveFrame()
stomp.ack(frame)
print "Dequeued old message: %s" % frame
stomp.disconnect()
def test_onhandlerException_ackMessage_filterReservedHdrs_send2ErrorQ_and_errback(self):
self.cleanQueues()
self.config = StompConfig('localhost', 61613)
self.creator = StompCreator(self.config)
deferConnected = self.creator.getConnection().addCallback(self._onConnected)
deferredTestErr = self.assertFailure(self.disconnected, StompestTestError).addCallback(self._reconnectAfterErr)
self.disconnectedAgain.addCallback(self._reconnectForErrQ)
self.disconnectedFromErrQ.addCallback(self._verifyErrMsg) #asserts err message content is correct
return defer.DeferredList([
deferredTestErr, #asserts that handler exception triggered disconnect and was propagated to disconnect deferred
self.disconnectedAgain, #asserts that message causing the exception was ack'ed to broker (otherwise, this message would not get delivered)
self.disconnectedFromErrQ, #asserts that we were able to read a message from the error queue
]
)
def _onConnected(self, stomp):
stomp.getDisconnectedDeferred().addCallback(self.disconnected.callback).addErrback(self.disconnected.errback)
stomp.send(self.queue, self.msg1, self.msg1Hdrs)
stomp.send(self.queue, self.msg2)
#Use selector to guarantee message order. AMQ doesn't not guarantee order by default
stomp.subscribe(self.queue, self._saveMsgAndBarf, {'ack': self.ackMode, 'activemq.prefetchSize': 1, 'selector': "food = 'barf'"}, errorDestination=self.errorQueue)
def _saveMsgAndBarf(self, stomp, msg):
print 'Save message and barf'
self.assertEquals(self.msg1, msg['body'])
self.unhandledMsg = msg
raise StompestTestError('this is a test')
def _reconnectAfterErr(self, result):
self.creator.getConnection().addCallback(self._onConnectedAgain)
def _onConnectedAgain(self, stomp):
stomp.getDisconnectedDeferred().addCallback(self.disconnectedAgain.callback).addErrback(self.disconnectedAgain.errback)
stomp.subscribe(self.queue, self._eatOneMsgAndDisconnect, {'ack': self.ackMode, 'activemq.prefetchSize': 1}, errorDestination=self.errorQueue)
def _eatOneMsgAndDisconnect(self, stomp, msg):
print 'Eat message and disconnect'
self.assertEquals(self.msg2, msg['body'])
stomp.disconnect()
def _reconnectForErrQ(self, result):
self.creator.getConnection().addCallback(self._onConnectedForErrQ)
def _onConnectedForErrQ(self, stomp):
stomp.getDisconnectedDeferred().addCallback(self.disconnectedFromErrQ.callback).addErrback(self.disconnectedFromErrQ.errback)
stomp.subscribe(self.errorQueue, self._saveErrMsgAndDisconnect, {'ack': self.ackMode, 'activemq.prefetchSize': 1})
def _saveErrMsgAndDisconnect(self, stomp, msg):
print 'Save error message and disconnect'
self.errQMsg = msg
stomp.disconnect()
def _verifyErrMsg(self, result):
self.assertEquals(self.msg1, self.errQMsg['body'])
self.assertEquals(self.msg1Hdrs['food'], self.errQMsg['headers']['food'])
self.assertNotEquals(self.unhandledMsg['headers']['message-id'], self.errQMsg['headers']['message-id'])
