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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018 NOKIA
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.collectors.veshv.tests.component
import org.assertj.core.api.Assertions.assertThat
import org.jetbrains.spek.api.Spek
import org.jetbrains.spek.api.dsl.describe
import org.jetbrains.spek.api.dsl.given
import org.jetbrains.spek.api.dsl.it
import org.onap.dcae.collectors.veshv.domain.VesEventDomain.HEARTBEAT
import org.onap.dcae.collectors.veshv.domain.VesEventDomain.MEASUREMENT
import org.onap.dcae.collectors.veshv.domain.VesEventDomain.OTHER
import org.onap.dcae.collectors.veshv.domain.VesEventDomain.PERF3GPP
import org.onap.dcae.collectors.veshv.healthcheck.api.HealthDescription
import org.onap.dcae.collectors.veshv.tests.fakes.ALTERNATE_PERF3GPP_TOPIC
import org.onap.dcae.collectors.veshv.tests.fakes.MEASUREMENTS_FOR_VF_SCALING_TOPIC
import org.onap.dcae.collectors.veshv.tests.fakes.PERF3GPP_TOPIC
import org.onap.dcae.collectors.veshv.tests.fakes.StoringSink
import org.onap.dcae.collectors.veshv.tests.fakes.configWithBasicRouting
import org.onap.dcae.collectors.veshv.tests.fakes.configWithDifferentRouting
import org.onap.dcae.collectors.veshv.tests.fakes.configWithEmptyRouting
import org.onap.dcae.collectors.veshv.tests.fakes.configWithTwoDomainsToOneTopicRouting
import org.onap.dcae.collectors.veshv.tests.utils.garbageFrame
import org.onap.dcae.collectors.veshv.tests.utils.messageWithInvalidWireFrameHeader
import org.onap.dcae.collectors.veshv.tests.utils.messageWithPayloadOfSize
import org.onap.dcae.collectors.veshv.tests.utils.vesWireFrameMessage
import org.onap.dcae.collectors.veshv.tests.utils.wireFrameMessageWithInvalidPayload
import reactor.core.publisher.Flux
import java.time.Duration
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since May 2018
*/
object VesHvSpecification : Spek({
debugRx(false)
describe("VES High Volume Collector") {
it("should handle multiple HV RAN events") {
val (sut, sink) = vesHvWithStoringSink()
val messages = sut.handleConnection(sink,
vesWireFrameMessage(PERF3GPP),
vesWireFrameMessage(PERF3GPP)
)
assertThat(messages)
.describedAs("should send all events")
.hasSize(2)
}
it("should close sink when closing collector provider") {
val (sut, _) = vesHvWithStoringSink()
sut.close()
assertThat(sut.sinkProvider.closed).isTrue()
}
}
describe("Memory management") {
it("should release memory for each handled and dropped message") {
val (sut, sink) = vesHvWithStoringSink()
val validMessage = vesWireFrameMessage(PERF3GPP)
val msgWithInvalidFrame = messageWithInvalidWireFrameHeader()
val msgWithTooBigPayload = messageWithPayloadOfSize(Sut.MAX_PAYLOAD_SIZE_BYTES + 1, PERF3GPP)
val expectedRefCnt = 0
val handledEvents = sut.handleConnection(
sink, validMessage, msgWithInvalidFrame, msgWithTooBigPayload)
assertThat(handledEvents).hasSize(1)
assertThat(validMessage.refCnt())
.describedAs("handled message should be released")
.isEqualTo(expectedRefCnt)
assertThat(msgWithInvalidFrame.refCnt())
.describedAs("message with invalid frame should be released")
.isEqualTo(expectedRefCnt)
assertThat(msgWithTooBigPayload.refCnt())
.describedAs("message with payload exceeding 1MiB should be released")
.isEqualTo(expectedRefCnt)
}
it("should release memory for each message with invalid payload") {
val (sut, sink) = vesHvWithStoringSink()
val validMessage = vesWireFrameMessage(PERF3GPP)
val msgWithInvalidPayload = wireFrameMessageWithInvalidPayload()
val expectedRefCnt = 0
val handledEvents = sut.handleConnection(sink, validMessage, msgWithInvalidPayload)
assertThat(handledEvents).hasSize(1)
assertThat(validMessage.refCnt())
.describedAs("handled message should be released")
.isEqualTo(expectedRefCnt)
assertThat(msgWithInvalidPayload.refCnt())
.describedAs("message with invalid payload should be released")
.isEqualTo(expectedRefCnt)
}
it("should release memory for each message with garbage frame") {
val (sut, sink) = vesHvWithStoringSink()
val validMessage = vesWireFrameMessage(PERF3GPP)
val msgWithGarbageFrame = garbageFrame()
val expectedRefCnt = 0
val handledEvents = sut.handleConnection(sink, validMessage, msgWithGarbageFrame)
assertThat(handledEvents).hasSize(1)
assertThat(validMessage.refCnt())
.describedAs("handled message should be released")
.isEqualTo(expectedRefCnt)
assertThat(msgWithGarbageFrame.refCnt())
.describedAs("message with garbage frame should be released")
.isEqualTo(expectedRefCnt)
}
}
describe("message routing") {
it("should direct message to a topic by means of routing configuration") {
val (sut, sink) = vesHvWithStoringSink()
val messages = sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
assertThat(messages).describedAs("number of routed messages").hasSize(1)
val msg = messages[0]
assertThat(msg.topic).describedAs("routed message topic").isEqualTo(PERF3GPP_TOPIC)
assertThat(msg.partition).describedAs("routed message partition").isEqualTo(0)
}
it("should be able to direct 2 messages from different domains to one topic") {
val (sut, sink) = vesHvWithStoringSink()
sut.configurationProvider.updateConfiguration(configWithTwoDomainsToOneTopicRouting)
val messages = sut.handleConnection(sink,
vesWireFrameMessage(PERF3GPP),
vesWireFrameMessage(HEARTBEAT),
vesWireFrameMessage(MEASUREMENT))
assertThat(messages).describedAs("number of routed messages").hasSize(3)
assertThat(messages[0].topic).describedAs("first message topic")
.isEqualTo(PERF3GPP_TOPIC)
assertThat(messages[1].topic).describedAs("second message topic")
.isEqualTo(PERF3GPP_TOPIC)
assertThat(messages[2].topic).describedAs("last message topic")
.isEqualTo(MEASUREMENTS_FOR_VF_SCALING_TOPIC)
}
it("should drop message if route was not found") {
val (sut, sink) = vesHvWithStoringSink()
val messages = sut.handleConnection(sink,
vesWireFrameMessage(OTHER, "first"),
vesWireFrameMessage(PERF3GPP, "second"),
vesWireFrameMessage(HEARTBEAT, "third"))
assertThat(messages).describedAs("number of routed messages").hasSize(1)
val msg = messages[0]
assertThat(msg.topic).describedAs("routed message topic").isEqualTo(PERF3GPP_TOPIC)
assertThat(msg.message.header.eventId).describedAs("routed message eventId").isEqualTo("second")
}
}
describe("configuration update") {
val defaultTimeout = Duration.ofSeconds(10)
given("successful configuration change") {
lateinit var sut: Sut
lateinit var sink: StoringSink
beforeEachTest {
vesHvWithStoringSink().run {
sut = first
sink = second
}
}
it("should update collector") {
val firstCollector = sut.collector
sut.configurationProvider.updateConfiguration(configWithDifferentRouting)
val collectorAfterUpdate = sut.collector
assertThat(collectorAfterUpdate).isNotSameAs(firstCollector)
}
it("should start routing messages") {
sut.configurationProvider.updateConfiguration(configWithEmptyRouting)
val messages = sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
assertThat(messages).isEmpty()
sut.configurationProvider.updateConfiguration(configWithBasicRouting)
val messagesAfterUpdate = sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
assertThat(messagesAfterUpdate).hasSize(1)
val message = messagesAfterUpdate[0]
assertThat(message.topic).describedAs("routed message topic after configuration's change")
.isEqualTo(PERF3GPP_TOPIC)
assertThat(message.partition).describedAs("routed message partition")
.isEqualTo(0)
}
it("should change domain routing") {
val messages = sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
assertThat(messages).hasSize(1)
val firstMessage = messages[0]
assertThat(firstMessage.topic).describedAs("routed message topic on initial configuration")
.isEqualTo(PERF3GPP_TOPIC)
assertThat(firstMessage.partition).describedAs("routed message partition")
.isEqualTo(0)
sut.configurationProvider.updateConfiguration(configWithDifferentRouting)
val messagesAfterUpdate = sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
assertThat(messagesAfterUpdate).hasSize(2)
val secondMessage = messagesAfterUpdate[1]
assertThat(secondMessage.topic).describedAs("routed message topic after configuration's change")
.isEqualTo(ALTERNATE_PERF3GPP_TOPIC)
assertThat(secondMessage.partition).describedAs("routed message partition")
.isEqualTo(0)
}
it("should update routing for each client sending one message") {
val messagesAmount = 10
val messagesForEachTopic = 5
Flux.range(0, messagesAmount).doOnNext {
if (it == messagesForEachTopic) {
sut.configurationProvider.updateConfiguration(configWithDifferentRouting)
}
}.doOnNext {
sut.handleConnection(sink, vesWireFrameMessage(PERF3GPP))
}.then().block(defaultTimeout)
val messages = sink.sentMessages
val firstTopicMessagesCount = messages.count { it.topic == PERF3GPP_TOPIC }
val secondTopicMessagesCount = messages.count { it.topic == ALTERNATE_PERF3GPP_TOPIC }
assertThat(messages.size).isEqualTo(messagesAmount)
assertThat(messagesForEachTopic)
.describedAs("amount of messages routed to each topic")
.isEqualTo(firstTopicMessagesCount)
.isEqualTo(secondTopicMessagesCount)
}
it("should not update routing for client sending continuous stream of messages") {
val messageStreamSize = 10
val pivot = 5
val incomingMessages = Flux.range(0, messageStreamSize)
.doOnNext {
if (it == pivot) {
sut.configurationProvider.updateConfiguration(configWithDifferentRouting)
println("config changed")
}
}
.map { vesWireFrameMessage(PERF3GPP) }
sut.collector.handleConnection(incomingMessages).block(defaultTimeout)
val messages = sink.sentMessages
val firstTopicMessagesCount = messages.count { it.topic == PERF3GPP_TOPIC }
val secondTopicMessagesCount = messages.count { it.topic == ALTERNATE_PERF3GPP_TOPIC }
assertThat(messages.size).isEqualTo(messageStreamSize)
assertThat(firstTopicMessagesCount)
.describedAs("amount of messages routed to first topic")
.isEqualTo(messageStreamSize)
assertThat(secondTopicMessagesCount)
.describedAs("amount of messages routed to second topic")
.isEqualTo(0)
}
it("should mark the application healthy") {
assertThat(sut.healthStateProvider.currentHealth)
.describedAs("application health state")
.isEqualTo(HealthDescription.HEALTHY)
}
}
given("failed configuration change") {
val (sut, _) = vesHvWithStoringSink()
sut.configurationProvider.shouldThrowExceptionOnConfigUpdate(true)
sut.configurationProvider.updateConfiguration(configWithBasicRouting)
it("should mark the application unhealthy ") {
assertThat(sut.healthStateProvider.currentHealth)
.describedAs("application health state")
.isEqualTo(HealthDescription.DYNAMIC_CONFIGURATION_NOT_FOUND)
}
}
}
describe("request validation") {
it("should reject message with payload greater than 1 MiB and all subsequent messages") {
val (sut, sink) = vesHvWithStoringSink()
val handledMessages = sut.handleConnection(sink,
vesWireFrameMessage(PERF3GPP, "first"),
messageWithPayloadOfSize(Sut.MAX_PAYLOAD_SIZE_BYTES + 1, PERF3GPP),
vesWireFrameMessage(PERF3GPP))
assertThat(handledMessages).hasSize(1)
assertThat(handledMessages.first().message.header.eventId).isEqualTo("first")
}
}
})
private fun vesHvWithStoringSink(): Pair<Sut, StoringSink> {
val sink = StoringSink()
val sut = Sut(sink)
sut.configurationProvider.updateConfiguration(configWithBasicRouting)
return Pair(sut, sink)
}
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