code: /*
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed 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 io.reactivex.rxjava3.internal.subscribers;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.RxJavaTest;
  import io.reactivex.rxjava3.internal.subscriptions.BooleanSubscription;
  import io.reactivex.rxjava3.subscribers.TestSubscriber;
  import io.reactivex.rxjava3.testsupport.TestHelper;
  
  public class SinglePostCompleteSubscriberTest extends RxJavaTest {
  
      @Test
      public void requestCompleteRace() {
          for (int i = 0; i < TestHelper.RACE_DEFAULT_LOOPS; i++) {
              final TestSubscriber<Integer> ts = new TestSubscriber<>(0L);
  
              final SinglePostCompleteSubscriber<Integer, Integer> spc = new SinglePostCompleteSubscriber<Integer, Integer>(ts) {
                  private static final long serialVersionUID = -2848918821531562637L;
  
                  @Override
                  public void onNext(Integer t) {
                  }
  
                  @Override
                  public void onError(Throwable t) {
                  }
  
                  @Override
                  public void onComplete() {
                      complete(1);
                  }
              };
  
              spc.onSubscribe(new BooleanSubscription());
  
              Runnable r1 = new Runnable() {
                  @Override
                  public void run() {
                      spc.onComplete();
                  }
              };
  
              Runnable r2 = new Runnable() {
                  @Override
                  public void run() {
                      ts.request(1);
                  }
              };
  
              TestHelper.race(r1, r2);
  
              ts.assertResult(1);
          }
      }
  }
  