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.observable;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.functions.Function;
  import io.reactivex.rxjava3.observers.TestObserver;
  
  public class ObservableRedoTest extends RxJavaTest {
  
      @Test
      public void redoCancel() {
          final TestObserver<Integer> to = new TestObserver<>();
  
          Observable.just(1)
          .repeatWhen(new Function<Observable<Object>, ObservableSource<Object>>() {
              @Override
              public ObservableSource<Object> apply(Observable<Object> o) throws Exception {
                  return o.map(new Function<Object, Object>() {
                      int count;
                      @Override
                      public Object apply(Object v) throws Exception {
                          if (++count == 1) {
                              to.dispose();
                          }
                          return v;
                      }
                  });
              }
          })
          .subscribe(to);
      }
  
      @Test
      public void managerThrows() {
          Observable.just(1)
          .retryWhen(new Function<Observable<Throwable>, ObservableSource<Object>>() {
              @Override
              public ObservableSource<Object> apply(Observable<Throwable> v) throws Exception {
                  throw new TestException();
              }
          })
          .test()
          .assertFailure(TestException.class);
      }
  }
  