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  * Copyright (C) 2018 Nokia.
   8  * ================================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.so.bpmn.infrastructure.pnf.dmaap;
  24
  25
  26 import static org.junit.Assert.assertEquals;
  27 import static org.mockito.ArgumentMatchers.any;
  28 import static org.mockito.ArgumentMatchers.eq;
  29 import static org.mockito.Mockito.mock;
  30 import static org.mockito.Mockito.verify;
  31 import static org.mockito.Mockito.verifyZeroInteractions;
  32 import static org.mockito.Mockito.when;
  33 import java.io.ByteArrayInputStream;
  34 import java.io.IOException;
  35 import java.lang.reflect.Field;
  36 import java.util.Map;
  37 import java.util.concurrent.ConcurrentHashMap;
  38 import java.util.concurrent.ScheduledThreadPoolExecutor;
  39 import org.apache.http.HttpEntity;
  40 import org.apache.http.HttpResponse;
  41 import org.apache.http.ProtocolVersion;
  42 import org.apache.http.client.HttpClient;
  43 import org.apache.http.client.methods.HttpGet;
  44 import org.apache.http.entity.InputStreamEntity;
  45 import org.apache.http.message.BasicHttpResponse;
  46 import org.junit.Before;
  47 import org.junit.Test;
  48 import org.junit.runner.RunWith;
  49 import org.mockito.ArgumentCaptor;
  50 import org.mockito.Mock;
  51 import org.mockito.junit.MockitoJUnitRunner;
  52 import org.onap.so.bpmn.infrastructure.pnf.dmaap.PnfEventReadyDmaapClient.DmaapTopicListenerThread;
  53 import org.springframework.core.env.Environment;
  54
  55 @RunWith(MockitoJUnitRunner.class)
  56 public class PnfEventReadyDmaapClientTest {
  57
  58     private static final String PNF_CORRELATION_ID = "corrTestId";
  59     private static final String PNF_CORRELATION_ID_NOT_FOUND_IN_MAP = "otherCorrId";
  60     private static final String JSON_EXAMPLE_WITH_PNF_CORRELATION_ID = "[{\"correlationId\": \"%s\","
  61             + "\"value\":\"value1\"},{\"correlationId\": \"corr\",\"value\":\"value2\"}]";
  62
  63     private static final String JSON_EXAMPLE_WITH_NO_PNF_CORRELATION_ID = "[{\"key1\":\"value1\"}]";
  64
  65     private static final String HOST = "hostTest";
  66     private static final int PORT = 1234;
  67     private static final String PROTOCOL = "http";
  68     private static final String URI_PATH_PREFIX = "eventsForTesting";
  69     private static final String EVENT_TOPIC_TEST = "eventTopicTest";
  70     private static final String CONSUMER_ID = "consumerTestId";
  71     private static final String CONSUMER_GROUP = "consumerGroupTest";
  72     private static final int TOPIC_LISTENER_DELAY_IN_SECONDS = 5;
  73
  74     @Mock
  75     private Environment env;
  76     private PnfEventReadyDmaapClient testedObject;
  77
  78     private DmaapTopicListenerThread testedObjectInnerClassThread;
  79     private HttpClient httpClientMock;
  80     private Runnable threadMockToNotifyCamundaFlow;
  81     private ScheduledThreadPoolExecutor executorMock;
  82
  83     @Before
  84     public void init() throws NoSuchFieldException, IllegalAccessException {
  85         when(env.getProperty(eq("pnf.dmaap.port"), eq(Integer.class))).thenReturn(PORT);
  86         when(env.getProperty(eq("pnf.dmaap.host"))).thenReturn(HOST);
  87         when(env.getProperty(eq("pnf.dmaap.protocol"))).thenReturn(PROTOCOL);
  88         when(env.getProperty(eq("pnf.dmaap.uriPathPrefix"))).thenReturn(URI_PATH_PREFIX);
  89         when(env.getProperty(eq("pnf.dmaap.topicName"))).thenReturn(EVENT_TOPIC_TEST);
  90         when(env.getProperty(eq("pnf.dmaap.consumerId"))).thenReturn(CONSUMER_ID);
  91         when(env.getProperty(eq("pnf.dmaap.consumerGroup"))).thenReturn(CONSUMER_GROUP);
  92         when(env.getProperty(eq("pnf.dmaap.topicListenerDelayInSeconds"), eq(Integer.class)))
  93                 .thenReturn(TOPIC_LISTENER_DELAY_IN_SECONDS);
  94         testedObject = new PnfEventReadyDmaapClient(env);
  95         testedObjectInnerClassThread = testedObject.new DmaapTopicListenerThread();
  96         httpClientMock = mock(HttpClient.class);
  97         threadMockToNotifyCamundaFlow = mock(Runnable.class);
  98         executorMock = mock(ScheduledThreadPoolExecutor.class);
  99         setPrivateField();
 100     }
 101
 102     /**
 103      * Test run method, where the are following conditions:
 104      * <p>
 105      * - DmaapThreadListener is running, flag is set to true
 106      * <p>
 107      * - map is filled with one entry with the key that we get from response
 108      * <p>
 109      * run method should invoke thread from map to notify camunda process, remove element from the map (map is empty)
 110      * and shutdown the executor because of empty map
 111      */
 112     @Test
 113     public void pnfCorrelationIdIsFoundInHttpResponse_notifyAboutPnfReady() throws IOException {
 114         when(httpClientMock.execute(any(HttpGet.class)))
 115                 .thenReturn(createResponse(String.format(JSON_EXAMPLE_WITH_PNF_CORRELATION_ID, PNF_CORRELATION_ID)));
 116         testedObjectInnerClassThread.run();
 117         ArgumentCaptor<HttpGet> captor1 = ArgumentCaptor.forClass(HttpGet.class);
 118         verify(httpClientMock).execute(captor1.capture());
 119
 120         assertEquals(captor1.getValue().getURI().getHost(), HOST);
 121         assertEquals(captor1.getValue().getURI().getPort(), PORT);
 122         assertEquals(captor1.getValue().getURI().getScheme(), PROTOCOL);
 123         assertEquals(captor1.getValue().getURI().getPath(),
 124                 "/" + URI_PATH_PREFIX + "/" + EVENT_TOPIC_TEST + "/" + CONSUMER_GROUP + "/" + CONSUMER_ID + "");
 125
 126         verify(threadMockToNotifyCamundaFlow).run();
 127         verify(executorMock).shutdown();
 128     }
 129
 130     /**
 131      * Test run method, where the are following conditions:
 132      * <p>
 133      * - DmaapThreadListener is running, flag is set to true
 134      * <p>
 135      * - map is filled with one entry with the pnfCorrelationId that does not match to pnfCorrelationId taken from http
 136      * response. run method should not do anything with the map not run any thread to notify camunda process
 137      */
 138     @Test
 139     public void pnfCorrelationIdIsFoundInHttpResponse_NotFoundInMap() throws IOException {
 140         when(httpClientMock.execute(any(HttpGet.class))).thenReturn(createResponse(
 141                 String.format(JSON_EXAMPLE_WITH_PNF_CORRELATION_ID, PNF_CORRELATION_ID_NOT_FOUND_IN_MAP)));
 142         testedObjectInnerClassThread.run();
 143         verifyZeroInteractions(threadMockToNotifyCamundaFlow, executorMock);
 144     }
 145
 146     /**
 147      * Test run method, where the are following conditions:
 148      * <p>
 149      * - DmaapThreadListener is running, flag is set to true
 150      * <p>
 151      * - map is filled with one entry with the pnfCorrelationId but no correlation id is taken from HttpResponse run
 152      * method should not do anything with the map and not run any thread to notify camunda process
 153      */
 154     @Test
 155     public void pnfCorrelationIdIsNotFoundInHttpResponse() throws IOException {
 156         when(httpClientMock.execute(any(HttpGet.class)))
 157                 .thenReturn(createResponse(JSON_EXAMPLE_WITH_NO_PNF_CORRELATION_ID));
 158         testedObjectInnerClassThread.run();
 159         verifyZeroInteractions(threadMockToNotifyCamundaFlow, executorMock);
 160     }
 161
 162     private void setPrivateField() throws NoSuchFieldException, IllegalAccessException {
 163         Field httpClientField = testedObject.getClass().getDeclaredField("httpClient");
 164         httpClientField.setAccessible(true);
 165         httpClientField.set(testedObject, httpClientMock);
 166         httpClientField.setAccessible(false);
 167
 168         Field executorField = testedObject.getClass().getDeclaredField("executor");
 169         executorField.setAccessible(true);
 170         executorField.set(testedObject, executorMock);
 171         executorField.setAccessible(false);
 172
 173         Field pnfCorrelationToThreadMapField = testedObject.getClass().getDeclaredField("pnfCorrelationIdToThreadMap");
 174         pnfCorrelationToThreadMapField.setAccessible(true);
 175         Map<String, Runnable> pnfCorrelationToThreadMap = new ConcurrentHashMap<>();
 176         pnfCorrelationToThreadMap.put(PNF_CORRELATION_ID, threadMockToNotifyCamundaFlow);
 177         pnfCorrelationToThreadMapField.set(testedObject, pnfCorrelationToThreadMap);
 178
 179         Field threadRunFlag = testedObject.getClass().getDeclaredField("dmaapThreadListenerIsRunning");
 180         threadRunFlag.setAccessible(true);
 181         threadRunFlag.set(testedObject, true);
 182         threadRunFlag.setAccessible(false);
 183     }
 184
 185     private HttpResponse createResponse(String json) {
 186         HttpEntity entity = new InputStreamEntity(new ByteArrayInputStream(json.getBytes()));
 187         ProtocolVersion protocolVersion = new ProtocolVersion("", 1, 1);
 188         HttpResponse response = new BasicHttpResponse(protocolVersion, 1, "");
 189         response.setEntity(entity);
 190         response.setStatusCode(200);
 191         return response;
 192     }
 193
 194 }