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.schedulers;
  
  import static org.junit.Assert.assertEquals;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.junit.Test;
  
  import io.reactivex.rxjava3.core.RxJavaTest;
  import io.reactivex.rxjava3.exceptions.TestException;
  import io.reactivex.rxjava3.internal.schedulers.ExecutorScheduler.DelayedRunnable;
  import io.reactivex.rxjava3.testsupport.SuppressUndeliverable;
  
  public class ExecutorSchedulerDelayedRunnableTest extends RxJavaTest {
  
      @Test(expected = TestException.class)
      @SuppressUndeliverable
      public void delayedRunnableCrash() {
          DelayedRunnable dl = new DelayedRunnable(new Runnable() {
              @Override
              public void run() {
                  throw new TestException();
              }
          });
          dl.run();
      }
  
      @Test
      public void dispose() {
          final AtomicInteger count = new AtomicInteger();
          DelayedRunnable dl = new DelayedRunnable(new Runnable() {
              @Override
              public void run() {
                  count.incrementAndGet();
              }
          });
  
          dl.dispose();
          dl.dispose();
  
          dl.run();
  
          assertEquals(0, count.get());
      }
  }
  