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 java.util.List;
  import java.util.concurrent.atomic.AtomicReference;
  
  import io.reactivex.rxjava3.disposables.Disposable;
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.observers.TestObserver;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  import io.reactivex.rxjava3.subjects.CompletableSubject;
  import io.reactivex.rxjava3.testsupport.TestHelper;
  
  public class CompletableTakeUntilTest extends RxJavaTest {
  
      @Test
      public void consumerDisposes() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestObserver<Void> to = cs1.takeUntil(cs2).test();
  
          to.assertEmpty();
  
          assertTrue(cs1.hasObservers());
          assertTrue(cs2.hasObservers());
  
          to.dispose();
  
          assertFalse(cs1.hasObservers());
          assertFalse(cs2.hasObservers());
      }
  
      @Test
      public void mainCompletes() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestObserver<Void> to = cs1.takeUntil(cs2).test();
  
          to.assertEmpty();
  
          assertTrue(cs1.hasObservers());
          assertTrue(cs2.hasObservers());
  
          cs1.onComplete();
  
          assertFalse(cs1.hasObservers());
          assertFalse(cs2.hasObservers());
  
          to.assertResult();
      }
  
      @Test
      public void otherCompletes() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestObserver<Void> to = cs1.takeUntil(cs2).test();
  
          to.assertEmpty();
  
          assertTrue(cs1.hasObservers());
          assertTrue(cs2.hasObservers());
  
          cs2.onComplete();
  
          assertFalse(cs1.hasObservers());
          assertFalse(cs2.hasObservers());
  
          to.assertResult();
      }
  
      @Test
      public void mainErrors() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestObserver<Void> to = cs1.takeUntil(cs2).test();
  
          to.assertEmpty();
  
          assertTrue(cs1.hasObservers());
          assertTrue(cs2.hasObservers());
  
          cs1.onError(new TestException());
  
          assertFalse(cs1.hasObservers());
          assertFalse(cs2.hasObservers());
  
          to.assertFailure(TestException.class);
      }
  
      @Test
      public void otherErrors() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestObserver<Void> to = cs1.takeUntil(cs2).test();
  
          to.assertEmpty();
  
          assertTrue(cs1.hasObservers());
          assertTrue(cs2.hasObservers());
  
          cs2.onError(new TestException());
  
          assertFalse(cs1.hasObservers());
          assertFalse(cs2.hasObservers());
  
          to.assertFailure(TestException.class);
      }
  
      @Test
      public void isDisposed() {
          CompletableSubject cs1 = CompletableSubject.create();
          CompletableSubject cs2 = CompletableSubject.create();
  
          TestHelper.checkDisposed(cs1.takeUntil(cs2));
      }
  
      @Test
      public void mainErrorLate() {
  
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
  
              new Completable() {
                  @Override
                  protected void subscribeActual(CompletableObserver observer) {
                      observer.onSubscribe(Disposable.empty());
                      observer.onError(new TestException());
                  }
              }.takeUntil(Completable.complete())
              .test()
              .assertResult();
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void mainCompleteLate() {
  
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
  
              new Completable() {
                  @Override
                  protected void subscribeActual(CompletableObserver observer) {
                      observer.onSubscribe(Disposable.empty());
                      observer.onComplete();
                  }
              }.takeUntil(Completable.complete())
              .test()
              .assertResult();
  
              assertTrue(errors.isEmpty());
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void otherErrorLate() {
  
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
  
              final AtomicReference<CompletableObserver> ref = new AtomicReference<>();
  
              Completable.complete()
              .takeUntil(new Completable() {
                  @Override
                  protected void subscribeActual(CompletableObserver observer) {
                      observer.onSubscribe(Disposable.empty());
                      ref.set(observer);
                  }
              })
              .test()
              .assertResult();
  
              ref.get().onError(new TestException());
  
              TestHelper.assertUndeliverable(errors, 0, TestException.class);
          } finally {
              RxJavaPlugins.reset();
          }
      }
  
      @Test
      public void otherCompleteLate() {
  
          List<Throwable> errors = TestHelper.trackPluginErrors();
          try {
  
              final AtomicReference<CompletableObserver> ref = new AtomicReference<>();
  
              Completable.complete()
              .takeUntil(new Completable() {
                  @Override
                  protected void subscribeActual(CompletableObserver observer) {
                      observer.onSubscribe(Disposable.empty());
                      ref.set(observer);
                  }
              })
              .test()
              .assertResult();
  
              ref.get().onComplete();
  
              assertTrue(errors.isEmpty());
          } finally {
              RxJavaPlugins.reset();
          }
      }
  }
  