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.assertEquals;
  
  import org.junit.Test;
  import org.reactivestreams.Publisher;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.functions.*;
  
  public class CompletableRepeatWhenTest extends RxJavaTest {
      @Test
      public void whenCounted() {
  
          final int[] counter = { 0 };
  
          Completable.fromAction(new Action() {
              @Override
              public void run() throws Exception {
                  counter[0]++;
              }
          })
          .repeatWhen(new Function<Flowable<Object>, Publisher<Object>>() {
              @Override
              public Publisher<Object> apply(Flowable<Object> f) throws Exception {
                  final int[] j = { 3 };
                  return f.takeWhile(new Predicate<Object>() {
                      @Override
                      public boolean test(Object v) throws Exception {
                          return j[0]-- != 0;
                      }
                  });
              }
          })
          .subscribe();
  
          assertEquals(4, counter[0]);
      }
  }
  