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