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.flowable;
  
  import static org.junit.Assert.*;
  
  import java.util.List;
  
  import org.junit.Test;
  import org.reactivestreams.*;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.functions.*;
  import io.reactivex.rxjava3.internal.functions.Functions;
  import io.reactivex.rxjava3.internal.subscriptions.BooleanSubscription;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  import io.reactivex.rxjava3.testsupport.TestHelper;
  
  public class FlowableDoOnLifecycleTest extends RxJavaTest {
  
      @Test
      public void onSubscribeCrashed() {
          Flowable.just(1)
          .doOnLifecycle(new Consumer<Subscription>() {
              @Override
              public void accept(Subscription s) throws Exception {
                  throw new TestException();
              }
          }, Functions.EMPTY_LONG_CONSUMER, Functions.EMPTY_ACTION)
          .test()
          .assertFailure(TestException.class);
      }
  
      @Test
      public void doubleOnSubscribe() {
          final int[] calls = { 0, 0 };
  
          TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Object>, Publisher<Object>>() {
              @Override
              public Publisher<Object> apply(Flowable<Object> f) throws Exception {
                  return f
                  .doOnLifecycle(new Consumer<Subscription>() {
                      @Override
                      public void accept(Subscription s) throws Exception {
                          calls[0]++;
                      }
                  }, Functions.EMPTY_LONG_CONSUMER, new Action() {
                      @Override
                      public void run() throws Exception {
                          calls[1]++;
                      }
                  });
              }
          });
  
          assertEquals(2, calls[0]);
          assertEquals(0, calls[1]);
      }
  
      @Test
      public void dispose() {
          final int[] calls = { 0, 0 };
  
          TestHelper.checkDisposed(Flowable.just(1)
                  .doOnLifecycle(new Consumer<Subscription>() {
                      @Override
                      public void accept(Subscription s) throws Exception {
                          calls[0]++;
                      }
                  }, Functions.EMPTY_LONG_CONSUMER, new Action() {
                      @Override
                      public void run() throws Exception {
                          calls[1]++;
                      }
                  })
              );
  
          assertEquals(1, calls[0]);
          assertEquals(1, calls[1]);
      }
  
      @Test
      public void requestCrashed() {
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              Flowable.just(1)
              .doOnLifecycle(Functions.emptyConsumer(),
                      new LongConsumer() {
                          @Override
                          public void accept(long v) throws Exception {
                              throw new TestException();
                          }
                      },
                      Functions.EMPTY_ACTION)
              .test()
              .assertResult(1);
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void cancelCrashed() {
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              Flowable.just(1)
              .doOnLifecycle(Functions.emptyConsumer(),
                      Functions.EMPTY_LONG_CONSUMER,
                      new Action() {
                          @Override
                          public void run() throws Exception {
                              throw new TestException();
                          }
                      })
              .take(1)
              .test()
              .assertResult(1);
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void onSubscribeCrash() {
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              final BooleanSubscription bs = new BooleanSubscription();
  
              new Flowable<Integer>() {
                  @Override
                  protected void subscribeActual(Subscriber<? super Integer> s) {
                      s.onSubscribe(bs);
                      s.onError(new TestException("Second"));
                      s.onComplete();
                  }
              }
              .doOnSubscribe(new Consumer<Subscription>() {
                  @Override
                  public void accept(Subscription s) throws Exception {
                      throw new TestException("First");
                  }
              })
              .to(TestHelper.<Integer>testConsumer())
              .assertFailureAndMessage(TestException.class, "First");
  
              assertTrue(bs.isCancelled());
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class, "Second");
          } finally {
              RxJavaPlugins.reset();
          }
      }
  }
  