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.operators.completable;
  
  import static io.reactivex.rxjava3.internal.util.ExceptionHelper.timeoutMessage;
  import static org.junit.Assert.*;
  
  import java.util.List;
  import java.util.concurrent.*;
  import java.util.concurrent.atomic.AtomicBoolean;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.disposables.*;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.functions.Action;
  import io.reactivex.rxjava3.internal.operators.completable.CompletableTimeout.TimeOutObserver;
  import io.reactivex.rxjava3.observers.TestObserver;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  import io.reactivex.rxjava3.schedulers.*;
  import io.reactivex.rxjava3.subjects.PublishSubject;
  import io.reactivex.rxjava3.testsupport.*;
  
  public class CompletableTimeoutTest extends RxJavaTest {
  
      @Test
      public void timeoutException() throws Exception {
  
          Completable.never()
          .timeout(100, TimeUnit.MILLISECONDS, Schedulers.io())
          .to(TestHelper.<Void>testConsumer())
          .awaitDone(5, TimeUnit.SECONDS)
          .assertFailureAndMessage(TimeoutException.class, timeoutMessage(100, TimeUnit.MILLISECONDS));
      }
  
      @Test
      public void timeoutContinueOther() throws Exception {
  
          final int[] call = { 0 };
  
          Completable other = Completable.fromAction(new Action() {
              @Override
              public void run() throws Exception {
                  call[0]++;
              }
          });
  
          Completable.never()
          .timeout(100, TimeUnit.MILLISECONDS, Schedulers.io(), other)
          .test()
          .awaitDone(5, TimeUnit.SECONDS)
          .assertResult();
  
          assertEquals(1, call[0]);
      }
  
      @Test
      public void shouldUnsubscribeFromUnderlyingSubscriptionOnDispose() {
          final PublishSubject<String> subject = PublishSubject.create();
          final TestScheduler scheduler = new TestScheduler();
  
          final TestObserver<Void> observer = subject.ignoreElements()
                  .timeout(100, TimeUnit.MILLISECONDS, scheduler)
                  .test();
  
          assertTrue(subject.hasObservers());
  
          observer.dispose();
  
          assertFalse(subject.hasObservers());
      }
  
      @Test
      public void otherErrors() {
          Completable.never()
          .timeout(1, TimeUnit.MILLISECONDS, Completable.error(new TestException()))
          .test()
          .awaitDone(5, TimeUnit.SECONDS)
          .assertFailure(TestException.class);
      }
  
      @Test
      public void mainSuccess() {
          Completable.complete()
          .timeout(1, TimeUnit.DAYS)
          .test()
          .awaitDone(5, TimeUnit.SECONDS)
          .assertResult();
      }
  
      @Test
      public void mainError() {
          Completable.error(new TestException())
          .timeout(1, TimeUnit.DAYS)
          .test()
          .awaitDone(5, TimeUnit.SECONDS)
          .assertFailure(TestException.class);
      }
  
      @Test
      public void errorTimeoutRace() {
          for (int i = 0; i < TestHelper.RACE_DEFAULT_LOOPS; i++) {
              List<Throwable> errors = TestHelper.trackPluginErrors();
  
              try {
                  final TestScheduler scheduler = new TestScheduler();
  
                  final PublishSubject<Integer> ps = PublishSubject.create();
  
                  TestObserverEx<Void> to = ps.ignoreElements()
                          .timeout(1, TimeUnit.MILLISECONDS, scheduler, Completable.complete())
                          .to(TestHelper.<Void>testConsumer());
  
                  final TestException ex = new TestException();
  
                  Runnable r1 = new Runnable() {
                      @Override
                      public void run() {
                          ps.onError(ex);
                      }
                  };
  
                  Runnable r2 = new Runnable() {
                      @Override
                      public void run() {
                          scheduler.advanceTimeBy(1, TimeUnit.MILLISECONDS);
                      }
                  };
  
                  TestHelper.race(r1, r2);
  
                  to.assertTerminated();
  
                  if (!errors.isEmpty()) {
                      TestHelper.assertUndeliverable(errors, 0, TestException.class);
                  }
  
              } finally {
                  RxJavaPlugins.reset();
              }
          }
      }
  
      @Test
      public void ambRace() {
          TestObserver<Void> to = new TestObserver<>();
          to.onSubscribe(Disposable.empty());
  
          CompositeDisposable cd = new CompositeDisposable();
          AtomicBoolean once = new AtomicBoolean();
          TimeOutObserver a = new TimeOutObserver(cd, once, to);
  
          a.onComplete();
          a.onComplete();
  
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              a.onError(new TestException());
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  }
  