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.disposables;
  
  import static org.junit.Assert.*;
  
  import java.util.concurrent.FutureTask;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.RxJavaTest;
  import io.reactivex.rxjava3.internal.functions.Functions;
  
  public class FutureDisposableTest extends RxJavaTest {
  
      @Test
      public void normal() {
          FutureTask<Object> ft = new FutureTask<>(Functions.EMPTY_RUNNABLE, null);
          Disposable d = Disposable.fromFuture(ft);
          assertFalse(d.isDisposed());
  
          d.dispose();
  
          assertTrue(d.isDisposed());
  
          d.dispose();
  
          assertTrue(d.isDisposed());
  
          assertTrue(ft.isCancelled());
      }
  
      @Test
      public void interruptible() {
          FutureTask<Object> ft = new FutureTask<>(Functions.EMPTY_RUNNABLE, null);
          Disposable d = Disposable.fromFuture(ft, true);
          assertFalse(d.isDisposed());
  
          d.dispose();
  
          assertTrue(d.isDisposed());
  
          d.dispose();
  
          assertTrue(d.isDisposed());
  
          assertTrue(ft.isCancelled());
      }
  
      @Test
      public void normalDone() {
          FutureTask<Object> ft = new FutureTask<>(Functions.EMPTY_RUNNABLE, null);
          FutureDisposable d = new FutureDisposable(ft, false);
          assertFalse(d.isDisposed());
  
          assertFalse(d.isDisposed());
  
          ft.run();
  
          assertTrue(d.isDisposed());
      }
  }
  