common/src/test/java/org/onap/so/client/cds/CDSProcessingClientTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 - 2019 Bell Canada.
   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.client.cds;
  22
  23
  24 import static org.junit.Assert.*;
  25 import static org.mockito.Mockito.*;
  26
  27 import io.grpc.inprocess.InProcessChannelBuilder;
  28 import io.grpc.inprocess.InProcessServerBuilder;
  29 import io.grpc.stub.StreamObserver;
  30 import io.grpc.testing.GrpcCleanupRule;
  31 import io.grpc.util.MutableHandlerRegistry;
  32 import java.util.ArrayList;
  33 import java.util.Collections;
  34 import java.util.List;
  35 import java.util.concurrent.CountDownLatch;
  36 import java.util.concurrent.TimeUnit;
  37 import java.util.concurrent.atomic.AtomicReference;
  38 import org.junit.After;
  39 import org.junit.Before;
  40 import org.junit.Rule;
  41 import org.junit.Test;
  42 import org.junit.runner.RunWith;
  43 import org.junit.runners.JUnit4;
  44 import org.mockito.Mock;
  45 import org.onap.ccsdk.cds.controllerblueprints.common.api.ActionIdentifiers;
  46 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase;
  47 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
  48 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
  49
  50 @RunWith(JUnit4.class)
  51 public class CDSProcessingClientTest {
  52
  53     @Rule
  54     public final GrpcCleanupRule grpcCleanup = new GrpcCleanupRule();
  55
  56     @Mock
  57     private CDSProcessingListener listener = spy(new TestCDSProcessingListener());
  58
  59     private CDSProcessingHandler handler;
  60     private CDSProcessingClient client;
  61
  62
  63     private final MutableHandlerRegistry serviceRegistry = new MutableHandlerRegistry();
  64     private final List<String> messagesDelivered = new ArrayList<>();
  65     private final CountDownLatch allRequestsDelivered = new CountDownLatch(1);
  66     private final AtomicReference<StreamObserver<ExecutionServiceOutput>> responseObserverRef = new AtomicReference<>();
  67
  68     @Before
  69     public void setUp() throws Exception {
  70         String serverName = InProcessServerBuilder.generateName();
  71         grpcCleanup.register(InProcessServerBuilder.forName(serverName)
  72             .fallbackHandlerRegistry(serviceRegistry).directExecutor().build().start());
  73
  74         handler = new CDSProcessingHandler(listener);
  75
  76         client =
  77             new CDSProcessingClient(InProcessChannelBuilder.forName(serverName).directExecutor().build(), handler);
  78
  79         final BluePrintProcessingServiceImplBase routeChatImpl =
  80             new BluePrintProcessingServiceImplBase() {
  81                 @Override
  82                 public StreamObserver<ExecutionServiceInput> process(
  83                     StreamObserver<ExecutionServiceOutput> responseObserver) {
  84
  85                     responseObserverRef.set(responseObserver);
  86
  87                     StreamObserver<ExecutionServiceInput> requestObserver = new StreamObserver<ExecutionServiceInput>() {
  88                         @Override
  89                         public void onNext(ExecutionServiceInput message) {
  90                             messagesDelivered.add(message.getActionIdentifiers().getActionName());
  91                         }
  92
  93                         @Override
  94                         public void onError(Throwable t) {
  95
  96                         }
  97
  98                         @Override
  99                         public void onCompleted() {
 100                             allRequestsDelivered.countDown();
 101                         }
 102                     };
 103
 104                     return requestObserver;
 105                 }
 106             };
 107
 108         serviceRegistry.addService(routeChatImpl);
 109     }
 110
 111     @After
 112     public void tearDown() {
 113         client.close();
 114     }
 115
 116     @Test
 117     public void testClientCst() {
 118         new CDSProcessingClient(listener);
 119     }
 120
 121
 122     @Test
 123     public void testSendMessageFail() throws Exception {
 124
 125         ExecutionServiceInput fakeRequest1 = ExecutionServiceInput.newBuilder().setActionIdentifiers(
 126             ActionIdentifiers.newBuilder().setActionName("request1").build()).build();
 127
 128         CountDownLatch finishLatch = client.sendRequest(fakeRequest1);
 129
 130         responseObserverRef.get().onError(new Throwable("fail test"));
 131         verify(listener).onError(any(Throwable.class));
 132
 133         assertTrue(finishLatch.await(1, TimeUnit.SECONDS));
 134     }
 135
 136     @Test
 137     public void testSendMessage() throws Exception {
 138
 139         ExecutionServiceInput fakeRequest1 = ExecutionServiceInput.newBuilder().setActionIdentifiers(
 140             ActionIdentifiers.newBuilder().setActionName("request1").build()).build();
 141
 142         ExecutionServiceOutput fakeResponse1 = ExecutionServiceOutput.newBuilder().setActionIdentifiers(
 143             ActionIdentifiers.newBuilder().setActionName("response1").build()).build();
 144
 145         ExecutionServiceOutput fakeResponse2 = ExecutionServiceOutput.newBuilder().setActionIdentifiers(
 146             ActionIdentifiers.newBuilder().setActionName("response2").build()).build();
 147
 148         CountDownLatch finishLatch = client.sendRequest(fakeRequest1);
 149
 150         // request message sent and delivered for one time
 151         assertTrue(allRequestsDelivered.await(1, TimeUnit.SECONDS));
 152         assertEquals(Collections.singletonList("request1"), messagesDelivered);
 153
 154         // Let the server send out two simple response messages
 155         // and verify that the client receives them.
 156         responseObserverRef.get().onNext(fakeResponse1);
 157         verify(listener).onMessage(fakeResponse1);
 158         responseObserverRef.get().onNext(fakeResponse2);
 159         verify(listener).onMessage(fakeResponse2);
 160
 161         // let server complete.
 162         responseObserverRef.get().onCompleted();
 163
 164         assertTrue(finishLatch.await(1, TimeUnit.SECONDS));
 165     }
 166
 167 }