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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018-2019 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.simulators.dcaeapp.impl
import arrow.core.None
import arrow.core.Some
import com.google.protobuf.ByteString
import com.nhaarman.mockitokotlin2.any
import com.nhaarman.mockitokotlin2.eq
import com.nhaarman.mockitokotlin2.mock
import com.nhaarman.mockitokotlin2.never
import com.nhaarman.mockitokotlin2.verify
import com.nhaarman.mockitokotlin2.whenever
import org.assertj.core.api.Assertions.*
import org.jetbrains.spek.api.Spek
import org.jetbrains.spek.api.dsl.describe
import org.jetbrains.spek.api.dsl.it
import org.mockito.ArgumentMatchers.anySet
import org.onap.ves.VesEventOuterClass.CommonEventHeader
import org.onap.ves.VesEventOuterClass.VesEvent
import reactor.core.publisher.Mono
import reactor.test.StepVerifier
import java.lang.IllegalArgumentException
import java.util.concurrent.ConcurrentLinkedQueue
import kotlin.test.assertFailsWith
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since August 2018
*/
internal class DcaeAppSimulatorTest : Spek({
lateinit var consumerFactory: ConsumerFactory
lateinit var messageStreamValidation: MessageStreamValidation
lateinit var consumer: Consumer
lateinit var cut: DcaeAppSimulator
beforeEachTest {
consumerFactory = mock()
messageStreamValidation = mock()
consumer = mock()
cut = DcaeAppSimulator(consumerFactory, messageStreamValidation)
whenever(consumerFactory.createConsumerForTopics(anySet())).thenReturn(consumer)
}
fun consumerState(vararg messages: ByteArray) = ConsumerState(ConcurrentLinkedQueue(messages.toList()))
describe("listenToTopics") {
val topics = setOf("perf3gpp", "faults")
it("should fail when topic list is empty") {
assertFailsWith(IllegalArgumentException::class){
cut.listenToTopics(setOf())
}
}
it("should fail when topic list contains empty strings") {
assertFailsWith(IllegalArgumentException::class){
cut.listenToTopics(setOf("perf3gpp", " ", "faults"))
}
}
it("should subscribe to given topics") {
cut.listenToTopics(topics)
verify(consumerFactory).createConsumerForTopics(topics)
}
it("should subscribe to given topics when called with comma separated list") {
cut.listenToTopics("perf3gpp,faults")
verify(consumerFactory).createConsumerForTopics(topics)
}
}
describe("state") {
it("should return None when topics hasn't been initialized") {
assertThat(cut.state()).isEqualTo(None)
}
describe("when topics are initialized") {
beforeEachTest {
cut.listenToTopics("perf3gpp")
}
it("should return some state when it has been set") {
val state = consumerState()
whenever(consumer.currentState()).thenReturn(state)
assertThat(cut.state()).isEqualTo(Some(state))
}
}
}
describe("resetState") {
it("should do nothing when topics hasn't been initialized") {
cut.resetState()
verify(consumer, never()).reset()
}
describe("when topics are initialized") {
beforeEachTest {
cut.listenToTopics("perf3gpp")
}
it("should reset the state") {
// when
cut.resetState()
// then
verify(consumer).reset()
}
}
}
describe("validate") {
beforeEachTest {
whenever(messageStreamValidation.validate(any(), any())).thenReturn(Mono.just(true))
}
it("should use empty list when consumer is unavailable") {
StepVerifier
.create(cut.validate("['The JSON']".byteInputStream()))
.expectNext(true)
.verifyComplete()
verify(messageStreamValidation).validate(any(), eq(emptyList()))
}
it("should delegate to MessageStreamValidation") {
// given
cut.listenToTopics("perf3gpp")
whenever(consumer.currentState()).thenReturn(consumerState(vesEvent().toByteArray()))
StepVerifier
.create(cut.validate("['The JSON']".byteInputStream()))
.expectNext(true)
.verifyComplete()
// then
verify(messageStreamValidation).validate(any(), any())
}
}
})
private const val DUMMY_EVENT_ID = "aaa"
private const val DUMMY_PAYLOAD = "payload"
private fun vesEvent(eventId: String = DUMMY_EVENT_ID, payload: String = DUMMY_PAYLOAD): VesEvent {
return VesEvent.newBuilder()
.setCommonEventHeader(CommonEventHeader.newBuilder()
.setEventId(eventId))
.setEventFields(ByteString.copyFrom(payload.toByteArray()))
.build()
}
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