Add tests for replayed and reordered messages

This commit is contained in:
Dimos Raptis 2020-09-25 15:34:42 +01:00
parent dd8763494f
commit 1af6e89927
2 changed files with 189 additions and 1 deletions

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@ -0,0 +1,184 @@
package net.corda.node.flows
import co.paralleluniverse.fibers.Suspendable
import net.corda.core.context.InvocationContext
import net.corda.core.flows.FlowLogic
import net.corda.core.flows.FlowSession
import net.corda.core.flows.InitiatedBy
import net.corda.core.flows.InitiatingFlow
import net.corda.core.flows.StartableByRPC
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.messaging.MessageRecipients
import net.corda.core.serialization.CordaSerializable
import net.corda.core.utilities.unwrap
import net.corda.node.services.statemachine.MessageType.DATA_MESSAGE
import net.corda.node.services.statemachine.MessageType.SESSION_CONFIRM
import net.corda.node.services.statemachine.MessageType.SESSION_INIT
import net.corda.node.services.statemachine.StaffedFlowHospital
import net.corda.testing.node.InMemoryMessagingNetwork
import net.corda.testing.node.internal.InternalMockNetwork
import net.corda.testing.node.internal.InternalMockNodeParameters
import net.corda.testing.node.internal.MessagingServiceSpy
import net.corda.testing.node.internal.TestStartedNode
import net.corda.testing.node.internal.enclosedCordapp
import net.corda.testing.node.internal.getMessage
import org.assertj.core.api.Assertions.assertThat
import org.junit.After
import org.junit.Before
import org.junit.Test
class FlowMessageReplayTest {
private lateinit var mockNetwork: InternalMockNetwork
private lateinit var partyA: TestStartedNode
private lateinit var partyB: TestStartedNode
companion object {
private const val NUMBER_OF_MESSAGES = 100
}
@Before
fun setup() {
mockNetwork = InternalMockNetwork(
cordappsForAllNodes = listOf(enclosedCordapp()),
notarySpecs = emptyList(),
threadPerNode = true,
networkSendManuallyPumped = false
)
partyA = mockNetwork.createNode(InternalMockNodeParameters(legalName = CordaX500Name("PartyA", "Berlin", "DE")))
partyB = mockNetwork.createNode(InternalMockNodeParameters(legalName = CordaX500Name("PartyB", "Berlin", "DE")))
mockNetwork.startNodes()
}
@After
fun tearDown() {
mockNetwork.stopNodes()
StaffedFlowHospital.onFlowKeptForOvernightObservation.clear()
}
@Test(timeout=300_000)
fun `messages that are being replayed by the messaging layer are successfully deduplicated by the state machine`() {
var messagesReceived = emptyList<InMemoryMessagingNetwork.MessageTransfer>()
mockNetwork.messagingNetwork.receivedMessages.subscribe { messagesReceived = messagesReceived + it }
partyA.setMessagingServiceSpy(DelayedReplayMessagingServiceSpy())
partyB.setMessagingServiceSpy(DelayedReplayMessagingServiceSpy())
partyA.services.startFlow(InitiatorFlow(partyB.info.legalIdentities.first(), NUMBER_OF_MESSAGES), InvocationContext.shell()).toCompletableFuture().get().resultFuture.get()
val dataMessagesFromA = filterMessages(messagesReceived, partyA, DATA_MESSAGE).size
val sessionConfirmationFromB = filterMessages(messagesReceived, partyB, SESSION_CONFIRM).size
// all messages are sent twice except the first one
assertThat(dataMessagesFromA).isEqualTo(2*NUMBER_OF_MESSAGES-1)
assertThat(sessionConfirmationFromB).isEqualTo(2)
}
@Test(timeout=300_000)
fun `messages that are being reordered by the network are being processed successfully in order by the state machine`() {
val messagesReceived = mutableListOf<InMemoryMessagingNetwork.MessageTransfer>()
mockNetwork.messagingNetwork.receivedMessages.subscribe { messagesReceived.add(it) }
partyA.setMessagingServiceSpy(ReorderingMessagingServiceSpy())
partyA.services.startFlow(InitiatorFlow(partyB.info.legalIdentities.first(), NUMBER_OF_MESSAGES), InvocationContext.shell()).toCompletableFuture().get().resultFuture.get()
}
private fun filterMessages(messages: List<InMemoryMessagingNetwork.MessageTransfer>, from: TestStartedNode, messageType: net.corda.node.services.statemachine.MessageType): List<InMemoryMessagingNetwork.MessageTransfer> {
return messages.filter {
it.sender.name == from.info.legalIdentities.first().name &&
it.getMessage().uniqueMessageId.messageType == messageType
}
}
@StartableByRPC
@InitiatingFlow
class InitiatorFlow(private val other: Party, private val numberOfMessages: Int) : FlowLogic<Unit>() {
@Suspendable
override fun call() {
val session = initiateFlow(other)
session.send(Message(MessageType.INITIAL_SESSION_MESSAGE, numberOfMessages))
for(step in 1..numberOfMessages) {
session.send(Message(MessageType.REGULAR_DATA_MESSAGE, step))
logger.info("Sending message $step")
}
val closingMessage = session.receive<Message>().unwrap { it }
assertThat(closingMessage.type).isEqualTo(MessageType.REGULAR_DATA_MESSAGE)
assertThat(closingMessage.payload).isEqualTo(1)
}
}
@InitiatedBy(InitiatorFlow::class)
class InitiatedFlow(val session: FlowSession) : FlowLogic<Unit>() {
@Suspendable
override fun call() {
val initialMessage = session.receive<Message>().unwrap { it }
assertThat(initialMessage.type).isEqualTo(MessageType.INITIAL_SESSION_MESSAGE)
val numberOfMessages = initialMessage.payload
for(step in 1..numberOfMessages) {
val dataMessage = session.receive<Message>().unwrap { it }
assertThat(dataMessage.type).isEqualTo(MessageType.REGULAR_DATA_MESSAGE)
assertThat(dataMessage.payload).isEqualTo(step)
logger.info("Received message $step")
}
session.send(Message(MessageType.REGULAR_DATA_MESSAGE, 1))
}
}
@CordaSerializable
data class Message(val type: MessageType, val payload: Int)
@CordaSerializable
enum class MessageType {
INITIAL_SESSION_MESSAGE,
REGULAR_DATA_MESSAGE
}
class DelayedReplayMessagingServiceSpy: MessagingServiceSpy() {
private var lastMessage: Triple<net.corda.node.services.messaging.Message, MessageRecipients, Any>? = null
override fun send(message: net.corda.node.services.messaging.Message, target: MessageRecipients, sequenceKey: Any) {
if (message.uniqueMessageId.messageType != SESSION_INIT) {
if (lastMessage == null) {
messagingService.send(message, target, sequenceKey)
lastMessage = Triple(message, target, sequenceKey)
} else {
messagingService.send(message, target, sequenceKey)
// replay old message
messagingService.send(lastMessage!!.first, lastMessage!!.second, lastMessage!!.third)
lastMessage = Triple(message, target, sequenceKey)
}
} else {
messagingService.send(message, target, sequenceKey)
}
}
}
class ReorderingMessagingServiceSpy: MessagingServiceSpy() {
private val buffer: MutableList<Triple<net.corda.node.services.messaging.Message, MessageRecipients, Any>> = mutableListOf()
override fun send(message: net.corda.node.services.messaging.Message, target: MessageRecipients, sequenceKey: Any) {
if (message.uniqueMessageId.messageType == DATA_MESSAGE) {
buffer.add(Triple(message, target, sequenceKey))
if (buffer.size == 5) {
buffer.shuffle()
buffer.forEach { msg ->
messagingService.send(msg.first, msg.second, msg.third)
}
buffer.clear()
}
} else {
messagingService.send(message, target, sequenceKey)
}
}
}
}

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@ -16,6 +16,7 @@ import net.corda.node.services.config.NodeConfiguration
import net.corda.node.services.messaging.*
import net.corda.node.services.statemachine.ExternalEvent
import net.corda.node.services.messaging.SenderDeduplicationInfo
import net.corda.node.services.statemachine.MessageType
import net.corda.node.services.statemachine.SessionId
import net.corda.node.utilities.AffinityExecutor
import net.corda.nodeapi.internal.lifecycle.ServiceStateHelper
@ -298,7 +299,10 @@ class MockNodeMessagingService(private val configuration: NodeConfiguration,
}
override fun insideDatabaseTransaction() {
processedMessages += transfer.message.uniqueMessageId
// replicating the real behaviour, where only session-init messages are deduplicated at the messaging layer.
if (transfer.message.uniqueMessageId.messageType == MessageType.SESSION_INIT) {
processedMessages += transfer.message.uniqueMessageId
}
}
}