rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImplTest.java

   1 /*
   2  * ============LICENSE_START====================================
   3  * DCAEGEN2-SERVICES-SDK
   4  * =========================================================
   5  * Copyright (C) 2019-2021 Nokia. All rights reserved.
   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
  21 package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.impl;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  25 import static org.mockito.ArgumentMatchers.any;
  26 import static org.mockito.BDDMockito.given;
  27 import static org.mockito.Mockito.mock;
  28 import static org.mockito.Mockito.verify;
  29
  30 import com.google.gson.JsonSyntaxException;
  31 import io.netty.handler.timeout.ReadTimeoutException;
  32 import org.junit.jupiter.api.Test;
  33 import org.mockito.ArgumentCaptor;
  34 import org.onap.dcaegen2.services.sdk.model.streams.dmaap.ImmutableMessageRouterSource;
  35 import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSource;
  36 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.*;
  37 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api.MessageRouterSubscriber;
  38 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterSubscribeRequest;
  39 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest;
  40 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeResponse;
  41 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.MessageRouterSubscriberConfig;
  42 import reactor.core.publisher.Mono;
  43
  44 /**
  45  * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
  46  * @since May 2019
  47  */
  48 class MessageRouterSubscriberImplTest {
  49
  50     private final RxHttpClient httpClient = mock(RxHttpClient.class);
  51     private final MessageRouterSubscriberConfig clientConfig = MessageRouterSubscriberConfig.createDefault();
  52     private final MessageRouterSubscriber
  53             cut = new MessageRouterSubscriberImpl(httpClient, clientConfig.gsonInstance());
  54
  55     private final ArgumentCaptor<HttpRequest> httpRequestArgumentCaptor = ArgumentCaptor.forClass(HttpRequest.class);
  56     private final MessageRouterSource sourceDefinition = ImmutableMessageRouterSource.builder()
  57             .name("sample topic")
  58             .topicUrl("https://dmaap-mr/TOPIC")
  59             .build();
  60     private final MessageRouterSubscribeRequest mrRequest = ImmutableMessageRouterSubscribeRequest.builder()
  61             .consumerGroup("SAMPLE-GROUP")
  62             .sourceDefinition(sourceDefinition)
  63             .build();
  64     private final HttpResponse httpResponse = ImmutableHttpResponse.builder()
  65             .statusCode(200)
  66             .statusReason("OK")
  67             .url(sourceDefinition.topicUrl())
  68             .rawBody("[]".getBytes())
  69             .build();
  70     private final HttpResponse httpResponseWithWrongStatusCode = ImmutableHttpResponse.builder()
  71             .statusCode(301)
  72             .statusReason("Something braked")
  73             .url(sourceDefinition.topicUrl())
  74             .rawBody("[]".getBytes())
  75             .build();
  76     private final HttpResponse httpResponseWithIncorrectJson = ImmutableHttpResponse.builder()
  77             .statusCode(200)
  78             .statusReason("OK")
  79             .url(sourceDefinition.topicUrl())
  80             .rawBody("{}".getBytes())
  81             .build();
  82
  83     @Test
  84     void getWithProperRequest_shouldReturnCorrectResponse() {
  85         // given
  86         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponse));
  87
  88         // when
  89         final Mono<MessageRouterSubscribeResponse> responses = cut
  90                 .get(mrRequest);
  91         final MessageRouterSubscribeResponse response = responses.block();
  92
  93         // then
  94         assertThat(response.successful()).isTrue();
  95         assertThat(response.failReason()).isNull();
  96         assertThat(response.hasElements()).isFalse();
  97
  98
  99         verify(httpClient).call(httpRequestArgumentCaptor.capture());
 100         final HttpRequest httpRequest = httpRequestArgumentCaptor.getValue();
 101         assertThat(httpRequest.method()).isEqualTo(HttpMethod.GET);
 102         assertThat(httpRequest.url()).isEqualTo(String.format("%s/%s/%s", sourceDefinition.topicUrl(),
 103                 mrRequest.consumerGroup(), mrRequest.consumerId()));
 104         assertThat(httpRequest.body()).isNull();
 105     }
 106
 107     @Test
 108     void getWithProperRequestButNotSuccessfulHttpRequest_shouldReturnMonoWithFailReason() {
 109         // given
 110         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponseWithWrongStatusCode));
 111
 112         // when
 113         final Mono<MessageRouterSubscribeResponse> responses = cut
 114                 .get(mrRequest);
 115         final MessageRouterSubscribeResponse response = responses.block();
 116
 117         // then
 118         assertThat(response.failed()).isTrue();
 119         assertThat(response.failReason()).
 120                 isEqualTo(String.format("%d %s%n%s", httpResponseWithWrongStatusCode.statusCode(),
 121                         httpResponseWithWrongStatusCode.statusReason(),
 122                         httpResponseWithWrongStatusCode.bodyAsString()));
 123     }
 124
 125     @Test
 126     void getWithImproperRawBody_shouldThrowNPE() {
 127         // given
 128         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponseWithIncorrectJson));
 129
 130         // when
 131         // then
 132         assertThatExceptionOfType(JsonSyntaxException.class).isThrownBy(() -> cut.get(mrRequest).block());
 133     }
 134
 135     @Test
 136     void getWithProperRequest_shouldReturnTimeoutError() {
 137
 138         // given
 139         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.error(ReadTimeoutException.INSTANCE));
 140
 141         // when
 142         final Mono<MessageRouterSubscribeResponse> responses = cut
 143                 .get(mrRequest);
 144         final MessageRouterSubscribeResponse response = responses.block();
 145
 146         // then
 147         assertThat(response.failed()).isTrue();
 148         assertThat(response.failReason()).contains("408 Request Timeout");
 149         assertThat(response.hasElements()).isFalse();
 150
 151
 152         verify(httpClient).call(httpRequestArgumentCaptor.capture());
 153         final HttpRequest httpRequest = httpRequestArgumentCaptor.getValue();
 154         assertThat(httpRequest.method()).isEqualTo(HttpMethod.GET);
 155         assertThat(httpRequest.url()).isEqualTo(String.format("%s/%s/%s", sourceDefinition.topicUrl(),
 156                 mrRequest.consumerGroup(), mrRequest.consumerId()));
 157         assertThat(httpRequest.body()).isNull();
 158     }
 159 }