/**
* Copyright (c) 2012, University of Konstanz, Distributed Systems Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Konstanz nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//Cleversafe open-source code header - Version 1.1 - December 1, 2006
//
//Cleversafe Dispersed Storage(TM) is software for secure, private and
//reliable storage of the world's data using information dispersal.
//
//Copyright (C) 2005-2007 Cleversafe, Inc.
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2
//of the License, or (at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
//USA.
//
//Contact Information:
// Cleversafe, 10 W. 35th Street, 16th Floor #84,
// Chicago IL 60616
// email: licensing@cleversafe.org
//
//END-OF-HEADER
//-----------------------
//@author: John Quigley <jquigley@cleversafe.com>
//@date: January 1, 2008
//---------------------
package org.jscsi.scsi.tasks.buffered;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.nio.ByteBuffer;
import java.util.Random;
import org.apache.log4j.Logger;
import org.jscsi.scsi.protocol.cdb.CDB;
import org.jscsi.scsi.protocol.cdb.Write10;
import org.jscsi.scsi.protocol.cdb.Write12;
import org.jscsi.scsi.protocol.cdb.Write16;
import org.jscsi.scsi.protocol.cdb.Write6;
import org.junit.Test;
public class BufferedWriteTaskTest extends BufferTestTask
{
private static Logger _logger = Logger.getLogger(BufferedWriteTaskTest.class);
private static final int WRITE_BLOCKS = 10;
private static int cmdRef = 0;
private Random rnd = new Random();
/////////////////////////////////////////////////////////////////////////////
@Test
public void testWrite6inMemory()
{
_logger.debug("********** WRITE6 MEMORY **********");
int lba = generateRandomLBA();
CDB cdb = new Write6(false, true, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitMemoryTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getMemoryBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite6inFile()
{
_logger.debug("********** WRITE6 FILE **********");
int lba = generateRandomLBA();
CDB cdb = new Write6(false, true, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitFileTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getFileBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite10inMemory()
{
_logger.debug("********** WRITE10 MEMORY **********");
int lba = generateRandomLBA();
CDB cdb = new Write10(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitMemoryTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getMemoryBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite10inFile()
{
_logger.debug("********** WRITE10 FILE **********");
int lba = generateRandomLBA();
CDB cdb = new Write10(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitFileTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getFileBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite12InMemory()
{
_logger.debug("********** WRITE12 MEMORY **********");
int lba = generateRandomLBA();
CDB cdb = new Write12(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitMemoryTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getMemoryBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite12InFile()
{
_logger.debug("********** WRITE12 FILE **********");
int lba = generateRandomLBA();
CDB cdb = new Write12(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitFileTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getFileBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite16inMemory()
{
_logger.debug("********** WRITE16 MEMORY **********");
int lba = generateRandomLBA();
CDB cdb = new Write16(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitMemoryTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getMemoryBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
@Test
public void testWrite16inFile()
{
_logger.debug("********** WRITE16 FILE **********");
int lba = generateRandomLBA();
CDB cdb = new Write16(0, false, false, false, false, false, lba, WRITE_BLOCKS);
ByteBuffer data = this.createReadData(WRITE_BLOCKS * STORE_BLOCK_SIZE, cmdRef);
this.submitFileTask(cdb, cmdRef);
verifyDeviceBuffer(data, this.getFileBuffer(), lba);
this.purgeReadData(cmdRef);
this.purgeDeviceData();
cmdRef++;
}
/**
* Verify that the data was properly placed into the device's buffer
*
* @param data The data written to the device
*/
private void verifyDeviceBuffer(ByteBuffer writtenData, ByteBuffer deviceData, int lba)
{
final int bytesWritten = WRITE_BLOCKS * STORE_BLOCK_SIZE;
assertNotNull(deviceData);
assertNotNull(writtenData);
deviceData.rewind();
writtenData.rewind();
for (int i = 0; i < STORE_CAPACITY; i++)
{
byte d = deviceData.get();
if (i < (lba * STORE_BLOCK_SIZE))
{
assertEquals(0, d);
}
else if (i < (lba * STORE_BLOCK_SIZE) + bytesWritten)
{
byte w = writtenData.get();
assertEquals(w, d);
}
else
{
assertEquals(0, d);
}
}
}
private int generateRandomLBA()
{
return Math.abs(rnd.nextInt()) % ((STORE_CAPACITY / STORE_BLOCK_SIZE) - WRITE_BLOCKS);
}
}