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.tck;
  
  import org.reactivestreams.Publisher;
  import org.testng.annotations.Test;
  
  import io.reactivex.rxjava3.processors.UnicastProcessor;
  import io.reactivex.rxjava3.schedulers.Schedulers;
  
  @Test
  public class UnicastProcessorAsPublisherTckTest extends BaseTck<Integer> {
  
      public UnicastProcessorAsPublisherTckTest() {
          super(100);
      }
  
      @Override
      public Publisher<Integer> createPublisher(final long elements) {
          final UnicastProcessor<Integer> pp = UnicastProcessor.create();
  
          Schedulers.io().scheduleDirect(new Runnable() {
              @Override
              public void run() {
                  long start = System.currentTimeMillis();
                  while (!pp.hasSubscribers()) {
                      try {
                          Thread.sleep(1);
                      } catch (InterruptedException ex) {
                          return;
                      }
  
                      if (System.currentTimeMillis() - start > 200) {
                          return;
                      }
                  }
  
                  for (int i = 0; i < elements; i++) {
                      pp.onNext(i);
                  }
                  pp.onComplete();
              }
          });
          return pp;
      }
  }
  