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 org.junit.*;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.functions.Function;
  import io.reactivex.rxjava3.testsupport.TestHelper;
  
  public class FlowableCountTest extends RxJavaTest {
      @Test
      public void simpleFlowable() {
          Assert.assertEquals(0, Flowable.empty().count().toFlowable().blockingLast().intValue());
  
          Assert.assertEquals(1, Flowable.just(1).count().toFlowable().blockingLast().intValue());
  
          Assert.assertEquals(10, Flowable.range(1, 10).count().toFlowable().blockingLast().intValue());
  
      }
  
      @Test
      public void simple() {
          Assert.assertEquals(0, Flowable.empty().count().blockingGet().intValue());
  
          Assert.assertEquals(1, Flowable.just(1).count().blockingGet().intValue());
  
          Assert.assertEquals(10, Flowable.range(1, 10).count().blockingGet().intValue());
  
      }
  
      @Test
      public void dispose() {
          TestHelper.checkDisposed(Flowable.just(1).count());
  
          TestHelper.checkDisposed(Flowable.just(1).count().toFlowable());
      }
  
      @Test
      public void doubleOnSubscribe() {
          TestHelper.checkDoubleOnSubscribeFlowable(new Function<Flowable<Object>, Flowable<Long>>() {
              @Override
              public Flowable<Long> apply(Flowable<Object> f) throws Exception {
                  return f.count().toFlowable();
              }
          });
  
          TestHelper.checkDoubleOnSubscribeFlowableToSingle(new Function<Flowable<Object>, SingleSource<Long>>() {
              @Override
              public SingleSource<Long> apply(Flowable<Object> f) throws Exception {
                  return f.count();
              }
          });
      }
  
  }
  