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 org.junit.Assert.*;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.*;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.disposables.Disposable;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.functions.*;
  import io.reactivex.rxjava3.observers.TestObserver;
  import io.reactivex.rxjava3.subjects.CompletableSubject;
  import io.reactivex.rxjava3.testsupport.TestHelper;
  
  public class CompletableDoOnLifecycleTest extends RxJavaTest {
  
      @Test
      public void empty() throws Throwable {
          @SuppressWarnings("unchecked")
          Consumer<? super Disposable> onSubscribe = mock(Consumer.class);
          Action onDispose = mock(Action.class);
  
          Completable.complete()
          .doOnLifecycle(onSubscribe, onDispose)
          .test()
          .assertResult();
  
          verify(onSubscribe).accept(any());
          verify(onDispose, never()).run();
      }
  
      @Test
      public void error() throws Throwable {
          @SuppressWarnings("unchecked")
          Consumer<? super Disposable> onSubscribe = mock(Consumer.class);
          Action onDispose = mock(Action.class);
  
          Completable.error(new TestException())
          .doOnLifecycle(onSubscribe, onDispose)
          .test()
          .assertFailure(TestException.class);
  
          verify(onSubscribe).accept(any());
          verify(onDispose, never()).run();
      }
  
      @Test
      public void onSubscribeCrash() throws Throwable {
          TestHelper.withErrorTracking(errors -> {
              @SuppressWarnings("unchecked")
              Consumer<? super Disposable> onSubscribe = mock(Consumer.class);
              Action onDispose = mock(Action.class);
  
              doThrow(new TestException("First")).when(onSubscribe).accept(any());
  
              Disposable bs = Disposable.empty();
  
              new Completable() {
                  @Override
                  protected void subscribeActual(CompletableObserver observer) {
                      observer.onSubscribe(bs);
                      observer.onError(new TestException("Second"));
                      observer.onComplete();
                  }
              }
              .doOnLifecycle(onSubscribe, onDispose)
              .to(TestHelper.<Integer>testConsumer())
              .assertFailureAndMessage(TestException.class, "First");
  
              assertTrue(bs.isDisposed());
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class, "Second");
  
              verify(onSubscribe).accept(any());
              verify(onDispose, never()).run();
          });
      }
  
      @Test
      public void onDisposeCrash() throws Throwable {
          TestHelper.withErrorTracking(errors -> {
              @SuppressWarnings("unchecked")
              Consumer<? super Disposable> onSubscribe = mock(Consumer.class);
              Action onDispose = mock(Action.class);
  
              doThrow(new TestException("First")).when(onDispose).run();
  
              CompletableSubject cs = CompletableSubject.create();
  
              TestObserver<Void> to = cs
              .doOnLifecycle(onSubscribe, onDispose)
              .test();
  
              assertTrue(cs.hasObservers());
  
              to.dispose();
  
              assertFalse(cs.hasObservers());
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class, "First");
  
              verify(onSubscribe).accept(any());
              verify(onDispose).run();
          });
      }
  
      @Test
      public void dispose() throws Throwable {
          @SuppressWarnings("unchecked")
          Consumer<? super Disposable> onSubscribe = mock(Consumer.class);
          Action onDispose = mock(Action.class);
  
          CompletableSubject cs = CompletableSubject.create();
  
          TestObserver<Void> to = cs
          .doOnLifecycle(onSubscribe, onDispose)
          .test();
  
          assertTrue(cs.hasObservers());
  
          to.dispose();
  
          assertFalse(cs.hasObservers());
  
          verify(onSubscribe).accept(any());
          verify(onDispose).run();
      }
  
      @Test
      public void isDisposed() {
          TestHelper.checkDisposed(CompletableSubject.create().doOnLifecycle(d -> { }, () -> { }));
      }
  
      @Test
      public void doubleOnSubscribe() {
          TestHelper.checkDoubleOnSubscribeCompletable(m -> m.doOnLifecycle(d -> { }, () -> { }));
      }
  }
  