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 static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.*;
  
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import org.junit.Test;
  import org.reactivestreams.*;
  
  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.internal.functions.Functions;
  import io.reactivex.rxjava3.internal.subscriptions.BooleanSubscription;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  import io.reactivex.rxjava3.subscribers.TestSubscriber;
  import io.reactivex.rxjava3.testsupport.*;
  
  public class FlowableAllTest extends RxJavaTest {
  
      @Test
      public void all() {
          Flowable<String> obs = Flowable.just("one", "two", "six");
  
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .subscribe(observer);
  
          verify(observer).onSubscribe((Disposable)any());
          verify(observer).onSuccess(true);
          verifyNoMoreInteractions(observer);
      }
  
      @Test
      public void notAll() {
          Flowable<String> obs = Flowable.just("one", "two", "three", "six");
  
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .subscribe(observer);
  
          verify(observer).onSubscribe((Disposable)any());
          verify(observer).onSuccess(false);
          verifyNoMoreInteractions(observer);
      }
  
      @Test
      public void empty() {
          Flowable<String> obs = Flowable.empty();
  
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .subscribe(observer);
  
          verify(observer).onSubscribe((Disposable)any());
          verify(observer).onSuccess(true);
          verifyNoMoreInteractions(observer);
      }
  
      @Test
      public void error() {
          Throwable error = new Throwable();
          Flowable<String> obs = Flowable.error(error);
  
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .subscribe(observer);
  
          verify(observer).onSubscribe((Disposable)any());
          verify(observer).onError(error);
          verifyNoMoreInteractions(observer);
      }
  
      @Test
      public void followingFirst() {
          Flowable<Integer> f = Flowable.fromArray(1, 3, 5, 6);
          Single<Boolean> allOdd = f.all(new Predicate<Integer>() {
              @Override
              public boolean test(Integer i) {
                  return i % 2 == 1;
              }
          });
  
          assertFalse(allOdd.blockingGet());
      }
  
      @Test
      public void issue1935NoUnsubscribeDownstream() {
          Flowable<Integer> source = Flowable.just(1)
              .all(new Predicate<Integer>() {
                  @Override
                  public boolean test(Integer t1) {
                      return false;
                  }
              })
              .flatMapPublisher(new Function<Boolean, Publisher<Integer>>() {
                  @Override
                  public Publisher<Integer> apply(Boolean t1) {
                      return Flowable.just(2).delay(500, TimeUnit.MILLISECONDS);
                  }
              });
  
          assertEquals((Object)2, source.blockingFirst());
      }
  
      @Test
      public void backpressureIfOneRequestedOneShouldBeDelivered() {
          TestObserverEx<Boolean> to = new TestObserverEx<>();
  
          Flowable.empty().all(new Predicate<Object>() {
              @Override
              public boolean test(Object t) {
                  return false;
              }
          }).subscribe(to);
  
          to.assertTerminated();
          to.assertNoErrors();
          to.assertComplete();
  
          to.assertValue(true);
      }
  
      @Test
      public void predicateThrowsExceptionAndValueInCauseMessage() {
          TestObserverEx<Boolean> to = new TestObserverEx<>();
  
          final IllegalArgumentException ex = new IllegalArgumentException();
  
          Flowable.just("Boo!").all(new Predicate<String>() {
              @Override
              public boolean test(String v) {
                  throw ex;
              }
          })
          .subscribe(to);
  
          to.assertTerminated();
          to.assertNoValues();
          to.assertNotComplete();
          to.assertError(ex);
          // FIXME need to decide about adding the value that probably caused the crash in some way
  //        assertTrue(ex.getCause().getMessage().contains("Boo!"));
      }
  
      @Test
      public void allFlowable() {
          Flowable<String> obs = Flowable.just("one", "two", "six");
  
          Subscriber<Boolean> subscriber = TestHelper.mockSubscriber();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .toFlowable()
          .subscribe(subscriber);
  
          verify(subscriber).onSubscribe((Subscription)any());
          verify(subscriber).onNext(true);
          verify(subscriber).onComplete();
          verifyNoMoreInteractions(subscriber);
      }
  
      @Test
      public void notAllFlowable() {
          Flowable<String> obs = Flowable.just("one", "two", "three", "six");
  
          Subscriber <Boolean> subscriber = TestHelper.mockSubscriber();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .toFlowable()
          .subscribe(subscriber);
  
          verify(subscriber).onSubscribe((Subscription)any());
          verify(subscriber).onNext(false);
          verify(subscriber).onComplete();
          verifyNoMoreInteractions(subscriber);
      }
  
      @Test
      public void emptyFlowable() {
          Flowable<String> obs = Flowable.empty();
  
          Subscriber <Boolean> subscriber = TestHelper.mockSubscriber();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .toFlowable()
          .subscribe(subscriber);
  
          verify(subscriber).onSubscribe((Subscription)any());
          verify(subscriber).onNext(true);
          verify(subscriber).onComplete();
          verifyNoMoreInteractions(subscriber);
      }
  
      @Test
      public void errorFlowable() {
          Throwable error = new Throwable();
          Flowable<String> obs = Flowable.error(error);
  
          Subscriber <Boolean> subscriber = TestHelper.mockSubscriber();
  
          obs.all(new Predicate<String>() {
              @Override
              public boolean test(String s) {
                  return s.length() == 3;
              }
          })
          .toFlowable()
          .subscribe(subscriber);
  
          verify(subscriber).onSubscribe((Subscription)any());
          verify(subscriber).onError(error);
          verifyNoMoreInteractions(subscriber);
      }
  
      @Test
      public void followingFirstFlowable() {
          Flowable<Integer> f = Flowable.fromArray(1, 3, 5, 6);
          Flowable<Boolean> allOdd = f.all(new Predicate<Integer>() {
              @Override
              public boolean test(Integer i) {
                  return i % 2 == 1;
              }
          })
          .toFlowable()
          ;
  
          assertFalse(allOdd.blockingFirst());
      }
  
      @Test
      public void issue1935NoUnsubscribeDownstreamFlowable() {
          Flowable<Integer> source = Flowable.just(1)
              .all(new Predicate<Integer>() {
                  @Override
                  public boolean test(Integer t1) {
                      return false;
                  }
              })
              .toFlowable()
              .flatMap(new Function<Boolean, Publisher<Integer>>() {
                  @Override
                  public Publisher<Integer> apply(Boolean t1) {
                      return Flowable.just(2).delay(500, TimeUnit.MILLISECONDS);
                  }
              })
              ;
  
          assertEquals((Object)2, source.blockingFirst());
      }
  
      @Test
      public void backpressureIfNoneRequestedNoneShouldBeDeliveredFlowable() {
          TestSubscriber<Boolean> ts = new TestSubscriber<>(0L);
          Flowable.empty().all(new Predicate<Object>() {
              @Override
              public boolean test(Object t1) {
                  return false;
              }
          })
          .toFlowable()
          .subscribe(ts);
  
          ts.assertNoValues();
          ts.assertNoErrors();
          ts.assertNotComplete();
      }
  
      @Test
      public void backpressureIfOneRequestedOneShouldBeDeliveredFlowable() {
          TestSubscriberEx<Boolean> ts = new TestSubscriberEx<>(1L);
  
          Flowable.empty().all(new Predicate<Object>() {
              @Override
              public boolean test(Object t) {
                  return false;
              }
          })
          .toFlowable()
          .subscribe(ts);
  
          ts.assertTerminated();
          ts.assertNoErrors();
          ts.assertComplete();
  
          ts.assertValue(true);
      }
  
      @Test
      public void predicateThrowsExceptionAndValueInCauseMessageFlowable() {
          TestSubscriberEx<Boolean> ts = new TestSubscriberEx<>();
  
          final IllegalArgumentException ex = new IllegalArgumentException();
  
          Flowable.just("Boo!").all(new Predicate<String>() {
              @Override
              public boolean test(String v) {
                  throw ex;
              }
          })
          .toFlowable()
          .subscribe(ts);
  
          ts.assertTerminated();
          ts.assertNoValues();
          ts.assertNotComplete();
          ts.assertError(ex);
          // FIXME need to decide about adding the value that probably caused the crash in some way
  //        assertTrue(ex.getCause().getMessage().contains("Boo!"));
      }
  
      @Test
      public void dispose() {
          TestHelper.checkDisposed(Flowable.just(1).all(Functions.alwaysTrue()).toFlowable());
  
          TestHelper.checkDisposed(Flowable.just(1).all(Functions.alwaysTrue()));
      }
  
      @Test
      public void predicateThrows() {
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              new Flowable<Integer>() {
                  @Override
                  protected void subscribeActual(Subscriber<? super Integer> subscriber) {
                      subscriber.onSubscribe(new BooleanSubscription());
  
                      subscriber.onNext(1);
                      subscriber.onNext(2);
                      subscriber.onError(new TestException());
                      subscriber.onComplete();
                  }
              }
              .all(new Predicate<Integer>() {
                  @Override
                  public boolean test(Integer v) throws Exception {
                      throw new TestException();
                  }
              })
              .toFlowable()
              .test()
              .assertFailure(TestException.class);
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void predicateThrowsObservable() {
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
              new Flowable<Integer>() {
                  @Override
                  protected void subscribeActual(Subscriber<? super Integer> subscriber) {
                      subscriber.onSubscribe(new BooleanSubscription());
  
                      subscriber.onNext(1);
                      subscriber.onNext(2);
                      subscriber.onError(new TestException());
                      subscriber.onComplete();
                  }
              }
              .all(new Predicate<Integer>() {
                  @Override
                  public boolean test(Integer v) throws Exception {
                      throw new TestException();
                  }
              })
              .toFlowable()
              .test()
              .assertFailure(TestException.class);
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void badSource() {
          TestHelper.checkBadSourceFlowable(new Function<Flowable<Integer>, Object>() {
              @Override
              public Object apply(Flowable<Integer> f) throws Exception {
                  return f.all(Functions.alwaysTrue());
              }
          }, false, 1, 1, true);
  
          TestHelper.checkBadSourceFlowable(new Function<Flowable<Integer>, Object>() {
              @Override
              public Object apply(Flowable<Integer> f) throws Exception {
                  return f.all(Functions.alwaysTrue()).toFlowable();
              }
          }, false, 1, 1, true);
      }
  
      @Test
      public void doubleOnSubscribe() {
          TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Object>, Publisher<Boolean>>() {
              @Override
              public Publisher<Boolean> apply(Flowable<Object> f) throws Exception {
                  return f.all(Functions.alwaysTrue()).toFlowable();
              }
          });
          TestHelper.checkDoubleOnSubscribeFlowableToSingle(new Function<Flowable<Object>, Single<Boolean>>() {
              @Override
              public Single<Boolean> apply(Flowable<Object> f) throws Exception {
                  return f.all(Functions.alwaysTrue());
              }
          });
      }
  }
  