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