/*
    * 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.impl;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.time.Duration;
  import java.time.Instant;
  import java.time.temporal.ChronoUnit;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.commons.pool2.BasePooledObjectFactory;
  import org.apache.commons.pool2.PooledObject;
  import org.junit.jupiter.api.Test;
  
  public class TestPoolImplUtils {
  
      @SuppressWarnings("unused")
      private abstract static class FactoryAB<A, B> extends BasePooledObjectFactory<B> {
          // empty by design
      }
  
      private abstract static class FactoryBA<A, B> extends FactoryAB<B, A> {
          // empty by design
      }
  
      private abstract static class FactoryC<C> extends FactoryBA<C, String> {
          // empty by design
      }
  
      @SuppressWarnings("unused")
      private abstract static class FactoryDE<D, E> extends FactoryC<D> {
          // empty by design
      }
  
      private abstract static class FactoryF<F> extends FactoryDE<Long, F> {
          // empty by design
      }
  
      private static class NotSimpleFactory extends FactoryF<Integer> {
          @Override
          public Long create() throws Exception {
              return null;
          }
  
          @Override
          public PooledObject<Long> wrap(final Long obj) {
              return null;
          }
      }
  
      private static class SimpleFactory extends BasePooledObjectFactory<String> {
          @Override
          public String create() {
              return null;
          }
  
          @Override
          public PooledObject<String> wrap(final String obj) {
              return null;
          }
      }
  
      private static final Instant INSTANT_1 = Instant.ofEpochMilli(1);
  
      private static final Instant INSTANT_0 = Instant.ofEpochMilli(0);
  
      @Test
      public void testFactoryTypeNotSimple() {
          final Class<?> result = PoolImplUtils.getFactoryType(NotSimpleFactory.class);
          assertEquals(Long.class, result);
      }
  
      @Test
      public void testFactoryTypeSimple() {
          final Class<?> result = PoolImplUtils.getFactoryType(SimpleFactory.class);
          assertEquals(String.class, result);
      }
  
      @Test
      public void testMaxInstants() {
          assertEquals(INSTANT_1, PoolImplUtils.max(INSTANT_0, INSTANT_1));
          assertEquals(INSTANT_1, PoolImplUtils.max(INSTANT_1, INSTANT_0));
          assertEquals(INSTANT_1, PoolImplUtils.max(INSTANT_1, INSTANT_1));
          assertEquals(INSTANT_0, PoolImplUtils.max(INSTANT_0, INSTANT_0));
     }
 
     @Test
     public void testMinInstants() {
         assertEquals(INSTANT_0, PoolImplUtils.min(INSTANT_0, INSTANT_1));
         assertEquals(INSTANT_0, PoolImplUtils.min(INSTANT_1, INSTANT_0));
         assertEquals(INSTANT_1, PoolImplUtils.min(INSTANT_1, INSTANT_1));
         assertEquals(INSTANT_0, PoolImplUtils.min(INSTANT_0, INSTANT_0));
     }
 
     @Test
     public void testToChronoUnit() {
         assertEquals(ChronoUnit.NANOS, PoolImplUtils.toChronoUnit(TimeUnit.NANOSECONDS));
         assertEquals(ChronoUnit.MICROS, PoolImplUtils.toChronoUnit(TimeUnit.MICROSECONDS));
         assertEquals(ChronoUnit.MILLIS, PoolImplUtils.toChronoUnit(TimeUnit.MILLISECONDS));
         assertEquals(ChronoUnit.SECONDS, PoolImplUtils.toChronoUnit(TimeUnit.SECONDS));
         assertEquals(ChronoUnit.MINUTES, PoolImplUtils.toChronoUnit(TimeUnit.MINUTES));
         assertEquals(ChronoUnit.HOURS, PoolImplUtils.toChronoUnit(TimeUnit.HOURS));
         assertEquals(ChronoUnit.DAYS, PoolImplUtils.toChronoUnit(TimeUnit.DAYS));
     }
 
     @Test
     public void testToDuration() {
         assertEquals(Duration.ZERO, PoolImplUtils.toDuration(0, TimeUnit.MILLISECONDS));
         assertEquals(Duration.ofMillis(1), PoolImplUtils.toDuration(1, TimeUnit.MILLISECONDS));
         for (final TimeUnit tu : TimeUnit.values()) {
             // All TimeUnit should be handled.
             assertEquals(Duration.ZERO, PoolImplUtils.toDuration(0, tu));
         }
     }
 }