sources/hv-collector-core/src/test/kotlin/org/onap/dcae/collectors/veshv/impl/adapters/ConsulConfigurationProviderTest.kt

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * dcaegen2-collectors-veshv
   4  * ================================================================================
   5  * Copyright (C) 2018 NOKIA
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.dcae.collectors.veshv.impl.adapters
  21
  22 import com.nhaarman.mockitokotlin2.any
  23 import com.nhaarman.mockitokotlin2.eq
  24 import com.nhaarman.mockitokotlin2.mock
  25 import com.nhaarman.mockitokotlin2.whenever
  26 import org.assertj.core.api.Assertions.assertThat
  27 import org.jetbrains.spek.api.Spek
  28 import org.jetbrains.spek.api.dsl.describe
  29 import org.jetbrains.spek.api.dsl.given
  30 import org.jetbrains.spek.api.dsl.it
  31 import org.jetbrains.spek.api.dsl.on
  32 import org.mockito.Mockito
  33 import org.onap.dcae.collectors.veshv.domain.VesEventDomain.HEARTBEAT
  34 import org.onap.dcae.collectors.veshv.domain.VesEventDomain.FAULT
  35 import org.onap.dcae.collectors.veshv.healthcheck.api.HealthDescription
  36 import org.onap.dcae.collectors.veshv.healthcheck.api.HealthState
  37
  38 import reactor.core.publisher.Mono
  39 import reactor.retry.Retry
  40 import reactor.test.StepVerifier
  41 import java.time.Duration
  42
  43 /**
  44  * @author Jakub Dudycz <jakub.dudycz@nokia.com>
  45  * @since May 2018
  46  */
  47 internal object ConsulConfigurationProviderTest : Spek({
  48
  49     describe("Consul configuration provider") {
  50
  51         val httpAdapterMock: HttpAdapter = mock()
  52         val healthStateProvider = HealthState.INSTANCE
  53
  54         given("valid resource url") {
  55             val validUrl = "http://valid-url/"
  56             val consulConfigProvider = constructConsulConfigProvider(validUrl, httpAdapterMock, healthStateProvider)
  57
  58             on("call to consul") {
  59                 whenever(httpAdapterMock.get(eq(validUrl), any(), Mockito.anyMap()))
  60                         .thenReturn(Mono.just(constructConsulResponse()))
  61
  62                 it("should use received configuration") {
  63
  64                     StepVerifier.create(consulConfigProvider().take(1))
  65                             .consumeNextWith {
  66
  67                                 val route1 = it.routing.routes[0]
  68                                 assertThat(FAULT.domainName)
  69                                         .describedAs("routed domain 1")
  70                                         .isEqualTo(route1.domain)
  71                                 assertThat("test-topic-1")
  72                                         .describedAs("target topic 1")
  73                                         .isEqualTo(route1.targetTopic)
  74
  75                                 val route2 = it.routing.routes[1]
  76                                 assertThat(HEARTBEAT.domainName)
  77                                         .describedAs("routed domain 2")
  78                                         .isEqualTo(route2.domain)
  79                                 assertThat("test-topic-2")
  80                                         .describedAs("target topic 2")
  81                                         .isEqualTo(route2.targetTopic)
  82
  83                             }.verifyComplete()
  84                 }
  85             }
  86
  87         }
  88         given("invalid resource url") {
  89             val invalidUrl = "http://invalid-url/"
  90
  91             val iterationCount = 3L
  92             val consulConfigProvider = constructConsulConfigProvider(
  93                     invalidUrl, httpAdapterMock, healthStateProvider, iterationCount
  94             )
  95
  96             on("call to consul") {
  97                 whenever(httpAdapterMock.get(eq(invalidUrl), any(), Mockito.anyMap()))
  98                         .thenReturn(Mono.error(RuntimeException("Test exception")))
  99
 100                 it("should interrupt the flux") {
 101
 102                     StepVerifier.create(consulConfigProvider())
 103                             .verifyErrorMessage("Test exception")
 104                 }
 105
 106                 it("should update the health state") {
 107                     StepVerifier.create(healthStateProvider().take(iterationCount))
 108                             .expectNextCount(iterationCount - 1)
 109                             .expectNext(HealthDescription.RETRYING_FOR_DYNAMIC_CONFIGURATION)
 110                             .verifyComplete()
 111                 }
 112             }
 113         }
 114     }
 115
 116 })
 117
 118 private fun constructConsulConfigProvider(url: String,
 119                                           httpAdapter: HttpAdapter,
 120                                           healthState: HealthState,
 121                                           iterationCount: Long = 1
 122 ): ConsulConfigurationProvider {
 123
 124     val firstRequestDelay = Duration.ofMillis(1)
 125     val requestInterval = Duration.ofMillis(1)
 126     val retry = Retry.onlyIf<Any> { it.iteration() <= iterationCount }.fixedBackoff(Duration.ofNanos(1))
 127
 128     return ConsulConfigurationProvider(
 129             httpAdapter,
 130             url,
 131             firstRequestDelay,
 132             requestInterval,
 133             healthState,
 134             retry
 135     )
 136 }
 137
 138 fun constructConsulResponse(): String =
 139     """{
 140     "whatever": "garbage",
 141     "collector.routing": [
 142             {
 143                 "fromDomain": "fault",
 144                 "toTopic": "test-topic-1"
 145             },
 146             {
 147                 "fromDomain": "heartbeat",
 148                 "toTopic": "test-topic-2"
 149             }
 150     ]
 151     }"""