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.error.ClientErrorReasonPresenter;
  39 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterSubscribeRequest;
  40 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest;
  41 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeResponse;
  42 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.config.MessageRouterSubscriberConfig;
  43 import reactor.core.publisher.Mono;
  44
  45 /**
  46  * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
  47  * @since May 2019
  48  */
  49 class MessageRouterSubscriberImplTest {
  50
  51     private static final String ERROR_MESSAGE = "Something went wrong";
  52     private final RxHttpClient httpClient = mock(RxHttpClient.class);
  53     private final ClientErrorReasonPresenter clientErrorReasonPresenter = mock(ClientErrorReasonPresenter.class);
  54     private final MessageRouterSubscriberConfig clientConfig = MessageRouterSubscriberConfig.createDefault();
  55     private final MessageRouterSubscriber
  56             cut = new MessageRouterSubscriberImpl(httpClient, clientConfig.gsonInstance(),clientErrorReasonPresenter);
  57
  58     private final ArgumentCaptor<HttpRequest> httpRequestArgumentCaptor = ArgumentCaptor.forClass(HttpRequest.class);
  59     private final MessageRouterSource sourceDefinition = ImmutableMessageRouterSource.builder()
  60             .name("sample topic")
  61             .topicUrl("https://dmaap-mr/TOPIC")
  62             .build();
  63     private final MessageRouterSubscribeRequest mrRequest = ImmutableMessageRouterSubscribeRequest.builder()
  64             .consumerGroup("SAMPLE-GROUP")
  65             .sourceDefinition(sourceDefinition)
  66             .build();
  67     private final HttpResponse httpResponse = ImmutableHttpResponse.builder()
  68             .statusCode(200)
  69             .statusReason("OK")
  70             .url(sourceDefinition.topicUrl())
  71             .rawBody("[]".getBytes())
  72             .build();
  73     private final HttpResponse httpResponseWithWrongStatusCode = ImmutableHttpResponse.builder()
  74             .statusCode(301)
  75             .statusReason("Something braked")
  76             .url(sourceDefinition.topicUrl())
  77             .rawBody("[]".getBytes())
  78             .build();
  79     private final HttpResponse httpResponseWithIncorrectJson = ImmutableHttpResponse.builder()
  80             .statusCode(200)
  81             .statusReason("OK")
  82             .url(sourceDefinition.topicUrl())
  83             .rawBody("{}".getBytes())
  84             .build();
  85
  86     @Test
  87     void getWithProperRequest_shouldReturnCorrectResponse() {
  88         // given
  89         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponse));
  90
  91         // when
  92         final Mono<MessageRouterSubscribeResponse> responses = cut
  93                 .get(mrRequest);
  94         final MessageRouterSubscribeResponse response = responses.block();
  95
  96         // then
  97         assertThat(response.successful()).isTrue();
  98         assertThat(response.failReason()).isNull();
  99         assertThat(response.hasElements()).isFalse();
 100
 101
 102         verify(httpClient).call(httpRequestArgumentCaptor.capture());
 103         final HttpRequest httpRequest = httpRequestArgumentCaptor.getValue();
 104         assertThat(httpRequest.method()).isEqualTo(HttpMethod.GET);
 105         assertThat(httpRequest.url()).isEqualTo(String.format("%s/%s/%s", sourceDefinition.topicUrl(),
 106                 mrRequest.consumerGroup(), mrRequest.consumerId()));
 107         assertThat(httpRequest.body()).isNull();
 108     }
 109
 110     @Test
 111     void getWithProperRequestButNotSuccessfulHttpRequest_shouldReturnMonoWithFailReason() {
 112         // given
 113         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponseWithWrongStatusCode));
 114
 115         // when
 116         final Mono<MessageRouterSubscribeResponse> responses = cut
 117                 .get(mrRequest);
 118         final MessageRouterSubscribeResponse response = responses.block();
 119
 120         // then
 121         assertThat(response.failed()).isTrue();
 122         assertThat(response.failReason()).
 123                 isEqualTo(String.format("%d %s%n%s", httpResponseWithWrongStatusCode.statusCode(),
 124                         httpResponseWithWrongStatusCode.statusReason(),
 125                         httpResponseWithWrongStatusCode.bodyAsString()));
 126     }
 127
 128     @Test
 129     void getWithImproperRawBody_shouldThrowNPE() {
 130         // given
 131         given(httpClient.call(any(HttpRequest.class))).willReturn(Mono.just(httpResponseWithIncorrectJson));
 132
 133         // when
 134         // then
 135         assertThatExceptionOfType(JsonSyntaxException.class).isThrownBy(() -> cut.get(mrRequest).block());
 136     }
 137
 138     @Test
 139     void getWithProperRequest_shouldReturnTimeoutError() {
 140
 141         // given
 142         given(clientErrorReasonPresenter.present(any()))
 143                 .willReturn(ERROR_MESSAGE);
 144         given(httpClient.call(any(HttpRequest.class)))
 145                 .willReturn(Mono.error(ReadTimeoutException.INSTANCE));
 146
 147         // when
 148         final Mono<MessageRouterSubscribeResponse> responses = cut
 149                 .get(mrRequest);
 150         final MessageRouterSubscribeResponse response = responses.block();
 151
 152         // then
 153         assertThat(response.failed()).isTrue();
 154         assertThat(response.failReason()).isEqualTo(ERROR_MESSAGE);
 155         assertThat(response.hasElements()).isFalse();
 156
 157
 158         verify(httpClient).call(httpRequestArgumentCaptor.capture());
 159         final HttpRequest httpRequest = httpRequestArgumentCaptor.getValue();
 160         assertThat(httpRequest.method()).isEqualTo(HttpMethod.GET);
 161         assertThat(httpRequest.url()).isEqualTo(String.format("%s/%s/%s", sourceDefinition.topicUrl(),
 162                 mrRequest.consumerGroup(), mrRequest.consumerId()));
 163         assertThat(httpRequest.body()).isNull();
 164     }
 165 }