content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.cassandra.db.compaction;
  
  import java.util.concurrent.Future;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.cassandra.concurrent.ExecutorFactory;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  public class CompactionExecutorTest
  {
      static Throwable testTaskThrowable = null;
      private CompactionManager.CompactionExecutor executor;
  
      @Before
      public void setup()
      {
          executor = new CompactionManager.CompactionExecutor(new ExecutorFactory.Default(null, null, (thread, throwable) -> {
              if (throwable != null)
                  testTaskThrowable = throwable;
          }), 1, "test", Integer.MAX_VALUE);
      }
  
      @After
      public void destroy() throws Exception
      {
          executor.shutdown();
          Assert.assertTrue(executor.awaitTermination(1, TimeUnit.MINUTES));
      }
  
      @Test
      public void testFailedRunnable() throws Exception
      {
          testTaskThrowable = null;
          Future<?> tt = executor.submitIfRunning(
              () -> { assert false : "testFailedRunnable"; }
              , "compactionExecutorTest");
  
          while (!tt.isDone())
              Thread.sleep(10);
          assertNotNull(testTaskThrowable);
          assertEquals(testTaskThrowable.getMessage(), "testFailedRunnable");
      }
  
      @Test
      public void testFailedCallable() throws Exception
      {
          testTaskThrowable = null;
          Future<?> tt = executor.submitIfRunning(
              () -> { assert false : "testFailedCallable"; return 1; }
              , "compactionExecutorTest");
  
          while (!tt.isDone())
              Thread.sleep(10);
          assertNotNull(testTaskThrowable);
          assertEquals(testTaskThrowable.getMessage(), "testFailedCallable");
      }
  
      @Test
      public void testExceptionRunnable() throws Exception
      {
          testTaskThrowable = null;
          Future<?> tt = executor.submitIfRunning(
          () -> { throw new RuntimeException("testExceptionRunnable"); }
          , "compactionExecutorTest");
  
          while (!tt.isDone())
              Thread.sleep(10);
          assertNotNull(testTaskThrowable);
          assertEquals(testTaskThrowable.getMessage(), "testExceptionRunnable");
      }
  }
  