content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.beam.runners.fnexecution.status;
  
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.verify;
  
  import java.io.IOException;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.ExecutionException;
  import org.apache.beam.model.fnexecution.v1.BeamFnApi;
  import org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusRequest;
  import org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusResponse;
  import org.apache.beam.vendor.grpc.v1p69p0.io.grpc.stub.StreamObserver;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.Timeout;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  @RunWith(JUnit4.class)
  public class WorkerStatusClientTest {
    @Rule public transient Timeout globalTimeout = Timeout.seconds(600);
    @Mock public StreamObserver<BeamFnApi.WorkerStatusRequest> mockObserver;
    private WorkerStatusClient client;
  
    @Before
    public void setup() {
      MockitoAnnotations.initMocks(this);
      client = WorkerStatusClient.forRequestObserver("ID", mockObserver);
    }
  
    @Test
    public void testGetWorkerStatusSuccess() throws Exception {
      CompletableFuture<WorkerStatusResponse> workerStatus =
          client.getWorkerStatus(WorkerStatusRequest.newBuilder().setId("123").build());
      client
          .getResponseObserver()
          .onNext(WorkerStatusResponse.newBuilder().setId("123").setStatusInfo("status").build());
      Assert.assertEquals("status", workerStatus.get().getStatusInfo());
    }
  
    @Test
    public void testGetWorkerStatusError() throws Exception {
      CompletableFuture<WorkerStatusResponse> workerStatus =
          client.getWorkerStatus(WorkerStatusRequest.newBuilder().setId("123").build());
      client
          .getResponseObserver()
          .onNext(WorkerStatusResponse.newBuilder().setId("123").setError("error").build());
      Assert.assertEquals("error", workerStatus.get().getError());
    }
  
    @Test
    @SuppressWarnings("FutureReturnValueIgnored")
    public void testGetWorkerStatusRequestSent() {
      client.getWorkerStatus();
      verify(mockObserver).onNext(any(WorkerStatusRequest.class));
    }
  
    @Test
    public void testUnknownRequestIdResponseIgnored() {
      CompletableFuture<WorkerStatusResponse> workerStatus = client.getWorkerStatus();
      client
          .getResponseObserver()
          .onNext(WorkerStatusResponse.newBuilder().setId("unknown").setStatusInfo("status").build());
      Assert.assertFalse(workerStatus.isDone());
    }
  
    @Test
    public void testCloseOutstandingRequest() throws IOException {
      CompletableFuture<WorkerStatusResponse> workerStatus = client.getWorkerStatus();
      client.close();
      Assert.assertThrows(ExecutionException.class, workerStatus::get);
    }
  }
  