bpmn/so-bpmn-infrastructure-common/src/test/java/org/onap/so/bpmn/infrastructure/pnf/dmaap/PnfEventReadyDmaapClientTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. 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.so.bpmn.infrastructure.pnf.dmaap;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.mockito.Matchers.any;
  25 import static org.mockito.Matchers.eq;
  26 import static org.mockito.Mockito.mock;
  27 import static org.mockito.Mockito.verify;
  28 import static org.mockito.Mockito.verifyZeroInteractions;
  29 import static org.mockito.Mockito.when;
  30
  31 import java.io.IOException;
  32 import java.io.UnsupportedEncodingException;
  33 import java.lang.reflect.Field;
  34 import java.util.Map;
  35 import java.util.concurrent.ConcurrentHashMap;
  36 import java.util.concurrent.ScheduledExecutorService;
  37
  38 import org.apache.http.HttpEntity;
  39 import org.apache.http.HttpResponse;
  40 import org.apache.http.ProtocolVersion;
  41 import org.apache.http.client.HttpClient;
  42 import org.apache.http.client.methods.HttpGet;
  43 import org.apache.http.entity.StringEntity;
  44 import org.apache.http.message.BasicHttpResponse;
  45 import org.junit.Before;
  46 import org.junit.Test;
  47 import org.junit.runner.RunWith;
  48 import org.mockito.ArgumentCaptor;
  49 import org.mockito.InjectMocks;
  50 import org.mockito.Mock;
  51 import org.mockito.runners.MockitoJUnitRunner;
  52 import org.onap.so.bpmn.infrastructure.pnf.dmaap.PnfEventReadyDmaapClient.DmaapTopicListenerThread;
  53 import org.springframework.core.env.Environment;
  54 @RunWith(MockitoJUnitRunner.class)
  55 public class PnfEventReadyDmaapClientTest {
  56
  57     private static final String CORRELATION_ID = "corrTestId";
  58     private static final String CORRELATION_ID_NOT_FOUND_IN_MAP = "otherCorrId";
  59     private static final String JSON_EXAMPLE_WITH_CORRELATION_ID = "[\n"
  60             + "    {\n"
  61             + "        \"pnfRegistrationFields\" : {\n"
  62             + "        \"correlationId\" : \"%s\",\n"
  63             + "        \"value\" : \"value1\"\n"
  64             + "        }\n"
  65             + "    },\n"
  66             + "    {\n"
  67             + "        \"pnfRegistrationFields\" : {\n"
  68             + "        \"correlationId\" : \"corr\",\n"
  69             + "        \"value\" : \"value2\"\n"
  70             + "        }\n"
  71             + "    }\n"
  72             + "]";
  73     private static final String JSON_EXAMPLE_WITH_NO_CORRELATION_ID =
  74             "{\"pnfRegistrationFields\":{\"field\":\"value\"}}";
  75
  76     private static final String HOST = "hostTest";
  77     private static final int PORT = 1234;
  78     private static final String PROTOCOL = "http";
  79     private static final String URI_PATH_PREFIX = "eventsForTesting";
  80     private static final String EVENT_TOPIC_TEST = "eventTopicTest";
  81     private static final String CONSUMER_ID = "consumerTestId";
  82     private static final String CONSUMER_GROUP = "consumerGroupTest";
  83     @Mock
  84     private Environment env;
  85     @InjectMocks
  86     private PnfEventReadyDmaapClient testedObject = new PnfEventReadyDmaapClient();
  87 ;
  88     private DmaapTopicListenerThread testedObjectInnerClassThread;
  89     private HttpClient httpClientMock;
  90     private Runnable threadMockToNotifyCamundaFlow;
  91     private ScheduledExecutorService executorMock;
  92
  93     @Before
  94     public void init() throws NoSuchFieldException, IllegalAccessException {
  95         when(env.getProperty(eq("pnf.dmaap.port"), eq(Integer.class))).thenReturn(PORT);
  96         when(env.getProperty(eq("pnf.dmaap.host"))).thenReturn(HOST);
  97         testedObject.setDmaapProtocol(PROTOCOL);
  98         testedObject.setDmaapUriPathPrefix(URI_PATH_PREFIX);
  99         testedObject.setDmaapTopicName(EVENT_TOPIC_TEST);
 100         testedObject.setConsumerId(CONSUMER_ID);
 101         testedObject.setConsumerGroup(CONSUMER_GROUP);
 102         testedObject.setDmaapClientDelayInSeconds(1);
 103         testedObject.init();
 104         testedObjectInnerClassThread = testedObject.new DmaapTopicListenerThread();
 105         httpClientMock = mock(HttpClient.class);
 106         threadMockToNotifyCamundaFlow = mock(Runnable.class);
 107         executorMock = mock(ScheduledExecutorService.class);
 108         setPrivateField();
 109     }
 110
 111     /**
 112      * Test run method, where the are following conditions:
 113      * <p> - DmaapThreadListener is running, flag is set to true
 114      * <p> - map is filled with one entry with the key that we get from response
 115      * <p> run method should invoke thread from map to notify camunda process, remove element from the map (map is
 116      * empty) and shutdown the executor because of empty map
 117      */
 118     @Test
 119     public void correlationIdIsFoundInHttpResponse_notifyAboutPnfReady()
 120             throws IOException {
 121         when(httpClientMock.execute(any(HttpGet.class))).
 122                 thenReturn(createResponse(String.format(JSON_EXAMPLE_WITH_CORRELATION_ID, CORRELATION_ID)));
 123         testedObjectInnerClassThread.run();
 124         ArgumentCaptor<HttpGet> captor1 = ArgumentCaptor.forClass(HttpGet.class);
 125         verify(httpClientMock).execute(captor1.capture());
 126         assertThat(captor1.getValue().getURI()).hasHost(HOST).hasPort(PORT).hasScheme(PROTOCOL)
 127                 .hasPath(
 128                         "/" + URI_PATH_PREFIX + "/" + EVENT_TOPIC_TEST + "/" + CONSUMER_GROUP + "/" + CONSUMER_ID + "");
 129         verify(threadMockToNotifyCamundaFlow).run();
 130         verify(executorMock).shutdownNow();
 131     }
 132
 133     /**
 134      * Test run method, where the are following conditions:
 135      * <p> - DmaapThreadListener is running, flag is set to true
 136      * <p> - map is filled with one entry with the correlationId that does not match to correlationId
 137      * taken from http response. run method should not do anything with the map not run any thread to notify camunda
 138      * process
 139      */
 140     @Test
 141     public void correlationIdIsFoundInHttpResponse_NotFoundInMap()
 142             throws IOException {
 143         when(httpClientMock.execute(any(HttpGet.class))).
 144                 thenReturn(createResponse(
 145                         String.format(JSON_EXAMPLE_WITH_CORRELATION_ID, CORRELATION_ID_NOT_FOUND_IN_MAP)));
 146         testedObjectInnerClassThread.run();
 147         verifyZeroInteractions(threadMockToNotifyCamundaFlow, executorMock);
 148     }
 149
 150     /**
 151      * Test run method, where the are following conditions:
 152      * <p> - DmaapThreadListener is running, flag is set to true
 153      * <p> - map is filled with one entry with the correlationId but no correlation id is taken from HttpResponse
 154      * run method should not do anything with the map and not run any thread to notify camunda process
 155      */
 156     @Test
 157     public void correlationIdIsNotFoundInHttpResponse() throws IOException {
 158         when(httpClientMock.execute(any(HttpGet.class))).
 159                 thenReturn(createResponse(JSON_EXAMPLE_WITH_NO_CORRELATION_ID));
 160         testedObjectInnerClassThread.run();
 161         verifyZeroInteractions(threadMockToNotifyCamundaFlow, executorMock);
 162     }
 163
 164     private void setPrivateField() throws NoSuchFieldException, IllegalAccessException {
 165         Field httpClientField = testedObject.getClass().getDeclaredField("httpClient");
 166         httpClientField.setAccessible(true);
 167         httpClientField.set(testedObject, httpClientMock);
 168         httpClientField.setAccessible(false);
 169
 170         Field executorField = testedObject.getClass().getDeclaredField("executor");
 171         executorField.setAccessible(true);
 172         executorField.set(testedObject, executorMock);
 173         executorField.setAccessible(false);
 174
 175         Field pnfCorrelationToThreadMapField = testedObject.getClass()
 176                 .getDeclaredField("pnfCorrelationIdToThreadMap");
 177         pnfCorrelationToThreadMapField.setAccessible(true);
 178         Map<String, Runnable> pnfCorrelationToThreadMap = new ConcurrentHashMap<>();
 179         pnfCorrelationToThreadMap.put(CORRELATION_ID, threadMockToNotifyCamundaFlow);
 180         pnfCorrelationToThreadMapField.set(testedObject, pnfCorrelationToThreadMap);
 181
 182         Field threadRunFlag = testedObject.getClass().getDeclaredField("dmaapThreadListenerIsRunning");
 183         threadRunFlag.setAccessible(true);
 184         threadRunFlag.set(testedObject, true);
 185         threadRunFlag.setAccessible(false);
 186     }
 187
 188     private HttpResponse createResponse(String json) throws UnsupportedEncodingException {
 189         HttpEntity entity = new StringEntity(json);
 190         ProtocolVersion protocolVersion = new ProtocolVersion("", 1, 1);
 191         HttpResponse response = new BasicHttpResponse(protocolVersion, 1, "");
 192         response.setEntity(entity);
 193         response.setStatusCode(200);
 194         return response;
 195     }
 196
 197 }