/*
    * 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.commons.pool2.pool407;
  
  import java.time.Duration;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.commons.pool2.PooledObject;
  import org.junit.jupiter.api.Disabled;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests POOL-407.
   */
  public class Pool407Test extends AbstractPool407Test {
  
      /**
       * Borrows from a pool and then immediately returns to that a pool.
       */
      private static class Pool407RoundtripRunnable implements Runnable {
          private final Pool407 pool;
  
          public Pool407RoundtripRunnable(final Pool407 pool) {
              this.pool = pool;
          }
  
          @Override
          public void run() {
              try {
                  final Pool407Fixture object = pool.borrowObject();
                  if (object != null) {
                      pool.returnObject(object);
                  }
              } catch (final Exception e) {
                  throw new RuntimeException(e);
              }
          }
      }
  
      protected void assertShutdown(final ExecutorService executor, final Duration poolConfigMaxWait, final AbstractPool407Factory factory) throws Exception {
          // Old note: This never finishes when the factory makes nulls because two threads are stuck forever
          // If a factory always returns a null object or a null poolable object, then we will wait forever.
          // This would also be true is object validation always fails.
          executor.shutdown();
          final boolean termination = executor.awaitTermination(Pool407Constants.AWAIT_TERMINATION_SECONDS, TimeUnit.SECONDS);
          // Order matters: test create() before makeObject()
          // Calling create() here in this test should not have side-effects
          final Pool407Fixture obj = factory.create();
          // Calling makeObject() here in this test should not have side-effects
          final PooledObject<Pool407Fixture> pooledObject = obj != null ? factory.makeObject() : null;
          assertShutdown(termination, poolConfigMaxWait, obj, pooledObject);
      }
  
      private void test(final AbstractPool407Factory factory, final int poolSize, final Duration poolConfigMaxWait) throws Exception {
          final ExecutorService executor = Executors.newFixedThreadPool(poolSize);
          try (final Pool407 pool = new Pool407(factory, poolConfigMaxWait)) {
              // Start 'poolSize' threads that try to borrow a Pool407Fixture with the same key
              for (int i = 0; i < poolSize; i++) {
                  executor.execute(new Pool407RoundtripRunnable(pool));
              }
              assertShutdown(executor, poolConfigMaxWait, factory);
          }
      }
  
      @Test
      public void testNormalFactoryNonNullFixtureWaitMax() throws Exception {
          test(new Pool407NormalFactory(new Pool407Fixture()), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_FOREVER);
      }
  
      @Test
      @Disabled
      public void testNormalFactoryNullFixtureWaitMax() throws Exception {
          test(new Pool407NormalFactory(null), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_FOREVER);
      }
  
      @Disabled
      @Test
      public void testNullObjectFactoryWaitMax() throws Exception {
          test(new Pool407NullObjectFactory(), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_FOREVER);
      }
  
      @Test
     @Disabled
     public void testNullObjectFactoryWaitShort() throws Exception {
         test(new Pool407NullObjectFactory(), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_SHORT);
     }
 
     @Test
     @Disabled
     public void testNullPoolableFactoryWaitMax() throws Exception {
         test(new Pool407NullPoolableObjectFactory(), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_FOREVER);
     }
 
     @Test
     @Disabled
     public void testNullPoolableFactoryWaitShort() throws Exception {
         test(new Pool407NullPoolableObjectFactory(), Pool407Constants.POOL_SIZE, Pool407Constants.WAIT_SHORT);
     }
 }