2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
6 * Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.simulators;
24 import static org.junit.Assert.assertEquals;
25 import static org.junit.Assert.assertTrue;
27 import com.google.protobuf.util.JsonFormat;
28 import io.grpc.ManagedChannel;
29 import io.grpc.internal.DnsNameResolverProvider;
30 import io.grpc.internal.PickFirstLoadBalancerProvider;
31 import io.grpc.netty.NettyChannelBuilder;
32 import io.grpc.stub.StreamObserver;
33 import java.io.IOException;
34 import java.nio.charset.StandardCharsets;
35 import java.util.concurrent.CompletableFuture;
36 import java.util.concurrent.CountDownLatch;
37 import java.util.concurrent.TimeUnit;
38 import org.apache.commons.io.IOUtils;
39 import org.json.simple.parser.ParseException;
40 import org.junit.After;
41 import org.junit.Before;
42 import org.junit.Test;
43 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc;
44 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc.BluePrintProcessingServiceStub;
45 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
46 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput.Builder;
47 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
48 import org.onap.policy.common.utils.coder.CoderException;
49 import org.onap.policy.common.utils.coder.StandardCoder;
50 import org.onap.policy.common.utils.network.NetworkUtil;
51 import org.onap.policy.common.utils.resources.ResourceUtils;
53 public class CdsSimulatorTest {
54 private static final StandardCoder coder = new StandardCoder();
56 private CdsSimulator sim;
59 * Starts the simulator, allocating a unique port for each test so we don't have to
60 * wait for the prior server to shut down.
63 public void setUp() throws Exception {
64 int port = NetworkUtil.allocPort();
65 sim = new CdsSimulator(Util.LOCALHOST, port);
70 public void tearDown() {
75 public void test() throws Exception {
76 String reqstr = IOUtils.toString(getClass().getResource("cds/cds.request.json"), StandardCharsets.UTF_8);
77 Builder builder = ExecutionServiceInput.newBuilder();
78 JsonFormat.parser().ignoringUnknownFields().merge(reqstr, builder);
79 ExecutionServiceInput request = builder.build();
80 ManagedChannel channel = NettyChannelBuilder.forAddress(Util.LOCALHOST, sim.getPort())
81 .nameResolverFactory(new DnsNameResolverProvider())
82 .loadBalancerFactory(new PickFirstLoadBalancerProvider()).usePlaintext().build();
85 final CompletableFuture<ExecutionServiceOutput> future = new CompletableFuture<>();
86 final CountDownLatch completed = new CountDownLatch(1);
88 BluePrintProcessingServiceStub asyncStub = BluePrintProcessingServiceGrpc.newStub(channel);
90 StreamObserver<ExecutionServiceOutput> responseObserver = new StreamObserver<ExecutionServiceOutput>() {
92 public void onNext(ExecutionServiceOutput output) {
93 future.complete(output);
97 public void onError(Throwable throwable) {
98 future.completeExceptionally(throwable);
102 public void onCompleted() {
103 completed.countDown();
107 StreamObserver<ExecutionServiceInput> requestObserver = asyncStub.process(responseObserver);
109 // publish the message
110 requestObserver.onNext(request);
112 // indicate that the request is done
113 requestObserver.onCompleted();
115 } catch (RuntimeException e) {
116 requestObserver.onError(e);
119 // wait for it to complete
120 assertTrue(completed.await(5, TimeUnit.SECONDS));
122 ExecutionServiceOutput result = future.get();
123 assertEquals(200, result.getStatus().getCode());
131 public void testGetResponseString() throws IOException, CoderException, ParseException {
132 CdsSimulator cdsSimulator = new CdsSimulator(Util.LOCALHOST, sim.getPort());
133 String reqstr = ResourceUtils.getResourceAsString(
134 "org/onap/policy/simulators/cds/cds.request.json");
135 String responseqstr = ResourceUtils.getResourceAsString(
136 "org/onap/policy/simulators/cds/pm_control-create-subscription.json");
137 ExecutionServiceInput request = coder.decode(reqstr, ExecutionServiceInput.class);
138 assertEquals(responseqstr, cdsSimulator.getResponseString(request, 0));