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   * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.activemq.artemis.tests.integration.persistence;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.File;
  
  import org.apache.activemq.artemis.core.config.impl.ConfigurationImpl;
  import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
  import org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.actors.OrderedExecutorFactory;
  import org.apache.activemq.artemis.utils.critical.EmptyCriticalAnalyzer;
  import org.junit.jupiter.api.Test;
  
  public class JournalFileSizeTest extends ActiveMQTestBase {
  
     private static int align;
  
     static {
        try {
           AIOSequentialFileFactory factory = new AIOSequentialFileFactory(new File("./target/"), 100);
           align = factory.getAlignment();
        } catch (Exception e) {
           align = 512;
        }
     }
  
     @Override
     protected ConfigurationImpl createBasicConfig(final int serverID) {
        ConfigurationImpl configuration = new ConfigurationImpl().setJournalDirectory(getJournalDir(serverID, false)).setBindingsDirectory(getBindingsDir(serverID, false)).setPagingDirectory(getPageDir(serverID, false)).setLargeMessagesDirectory(getLargeMessagesDir(serverID, false));
  
        return configuration;
     }
  
     @Test
     public void testIncorrectFileSizeLower() throws Exception {
        ConfigurationImpl config = createBasicConfig();
        int origFileSize = config.getJournalFileSize();
        config.setJournalFileSize(origFileSize + (align / 2 - 1));
        JournalStorageManager manager = new JournalStorageManager(config, EmptyCriticalAnalyzer.getInstance(), new OrderedExecutorFactory(null), new OrderedExecutorFactory(null));
        int fileSize = manager.getMessageJournal().getFileSize();
        assertEquals(origFileSize, fileSize);
     }
  
     @Test
     public void testIncorrectFileSizeHigher() throws Exception {
        ConfigurationImpl config = createBasicConfig();
        int origFileSize = config.getJournalFileSize();
        config.setJournalFileSize(origFileSize + (align / 2 + 1));
        JournalStorageManager manager = new JournalStorageManager(config, EmptyCriticalAnalyzer.getInstance(), new OrderedExecutorFactory(null), new OrderedExecutorFactory(null));
        int fileSize = manager.getMessageJournal().getFileSize();
        assertEquals(origFileSize + align, fileSize);
     }
  
     @Test
     public void testIncorrectFileSizeHalf() throws Exception {
        ConfigurationImpl config = createBasicConfig();
        int origFileSize = config.getJournalFileSize();
        config.setJournalFileSize(origFileSize + (align / 2));
        JournalStorageManager manager = new JournalStorageManager(config, EmptyCriticalAnalyzer.getInstance(), new OrderedExecutorFactory(null), new OrderedExecutorFactory(null));
        int fileSize = manager.getMessageJournal().getFileSize();
        assertEquals(origFileSize + align, fileSize);
     }
  }
  