/*
 * 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.activemq.artemis.tests.unit.core.journal.impl;

import java.nio.ByteBuffer;

import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
import org.junit.Assert;
import org.junit.Before;

public abstract class FileFactoryTestBase extends ActiveMQTestBase {

   protected abstract SequentialFileFactory createFactory();

   protected SequentialFileFactory factory;

   @Override
   @Before
   public void setUp() throws Exception {
      super.setUp();

      factory = createFactory();
   }

   // Protected ---------------------------------

   protected void checkFill(final SequentialFile file, final int size) throws Exception {
      file.fill(size);

      file.close();

      file.open();

      file.position(0);

      ByteBuffer bb = ByteBuffer.allocateDirect(size);

      int bytesRead = file.read(bb);

      Assert.assertEquals(size, bytesRead);

      bb.rewind();

      byte[] bytes = new byte[size];

      bb.get(bytes);

      for (int i = 0; i < size; i++) {
         // log.debug(" i is " + i);
         Assert.assertEquals(0, bytes[i]);
      }

   }

}
