models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/topic/BidirectionalTopicHandlerTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2020-2021 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.policy.controlloop.actorserviceprovider.topic;
  22
  23 import static org.assertj.core.api.Assertions.assertThatThrownBy;
  24 import static org.junit.Assert.assertEquals;
  25 import static org.junit.Assert.assertNotNull;
  26 import static org.junit.Assert.assertSame;
  27 import static org.mockito.ArgumentMatchers.any;
  28 import static org.mockito.ArgumentMatchers.anyString;
  29 import static org.mockito.Mockito.verify;
  30 import static org.mockito.Mockito.when;
  31
  32 import java.util.Arrays;
  33 import org.junit.Before;
  34 import org.junit.Test;
  35 import org.junit.runner.RunWith;
  36 import org.mockito.Mock;
  37 import org.mockito.junit.MockitoJUnitRunner;
  38 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
  39 import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
  40 import org.onap.policy.common.endpoints.event.comm.TopicSink;
  41 import org.onap.policy.common.endpoints.event.comm.TopicSource;
  42 import org.onap.policy.common.endpoints.event.comm.client.BidirectionalTopicClientException;
  43
  44 @RunWith(MockitoJUnitRunner.class)
  45 public class BidirectionalTopicHandlerTest {
  46     private static final String UNKNOWN = "unknown";
  47     private static final String MY_SOURCE = "my-source";
  48     private static final String MY_SINK = "my-sink";
  49     private static final String KEY1 = "requestId";
  50     private static final String KEY2 = "subRequestId";
  51
  52     @Mock
  53     private TopicSink publisher;
  54
  55     @Mock
  56     private TopicSource subscriber;
  57
  58     @Mock
  59     private TopicEndpoint mgr;
  60
  61     private MyTopicHandler handler;
  62
  63
  64     /**
  65      * Sets up.
  66      */
  67     @Before
  68     public void setUp() throws BidirectionalTopicClientException {
  69         when(mgr.getTopicSinks(MY_SINK)).thenReturn(Arrays.asList(publisher));
  70         when(mgr.getTopicSources(Arrays.asList(MY_SOURCE))).thenReturn(Arrays.asList(subscriber));
  71
  72         when(publisher.getTopicCommInfrastructure()).thenReturn(CommInfrastructure.NOOP);
  73
  74         handler = new MyTopicHandler(MY_SINK, MY_SOURCE);
  75
  76         handler.start();
  77     }
  78
  79     @Test
  80     public void testBidirectionalTopicHandler_testGetSource_testGetTarget() {
  81         assertEquals(MY_SOURCE, handler.getSourceTopic());
  82         assertEquals(MY_SINK, handler.getSinkTopic());
  83
  84         verify(mgr).getTopicSinks(anyString());
  85         verify(mgr).getTopicSources(any());
  86
  87         // source not found
  88         assertThatThrownBy(() -> new MyTopicHandler(MY_SINK, UNKNOWN))
  89                         .isInstanceOf(BidirectionalTopicClientException.class).hasMessageContaining("sources")
  90                         .hasMessageContaining(UNKNOWN);
  91
  92         // target not found
  93         assertThatThrownBy(() -> new MyTopicHandler(UNKNOWN, MY_SOURCE))
  94                         .isInstanceOf(BidirectionalTopicClientException.class).hasMessageContaining("sinks")
  95                         .hasMessageContaining(UNKNOWN);
  96     }
  97
  98     @Test
  99     public void testShutdown() {
 100         handler.shutdown();
 101         verify(subscriber).unregister(any());
 102     }
 103
 104     @Test
 105     public void testStart() {
 106         verify(subscriber).register(any());
 107     }
 108
 109     @Test
 110     public void testStop() {
 111         handler.stop();
 112         verify(subscriber).unregister(any());
 113     }
 114
 115     @Test
 116     public void testAddForwarder() {
 117         // array form
 118         Forwarder forwarder = handler.addForwarder(new SelectorKey(KEY1), new SelectorKey(KEY2));
 119         assertNotNull(forwarder);
 120
 121         // repeat using list form
 122         assertSame(forwarder, handler.addForwarder(Arrays.asList(new SelectorKey(KEY1), new SelectorKey(KEY2))));
 123     }
 124
 125     @Test
 126     public void testGetTopicEndpointManager() {
 127         // setting "mgr" to null should cause it to use the superclass' method
 128         mgr = null;
 129         assertNotNull(handler.getTopicEndpointManager());
 130     }
 131
 132
 133     private class MyTopicHandler extends BidirectionalTopicHandler {
 134         public MyTopicHandler(String sinkTopic, String sourceTopic) throws BidirectionalTopicClientException {
 135             super(sinkTopic, sourceTopic);
 136         }
 137
 138         @Override
 139         protected TopicEndpoint getTopicEndpointManager() {
 140             return (mgr != null ? mgr : super.getTopicEndpointManager());
 141         }
 142     }
 143 }