/**
* JDBM LICENSE v1.00
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 2. 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.
*
* 3. The name "JDBM" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Cees de Groot. For written permission,
* please contact cg@cdegroot.com.
*
* 4. Products derived from this Software may not be called "JDBM"
* nor may "JDBM" appear in their names without prior written
* permission of Cees de Groot.
*
* 5. Due credit should be given to the JDBM Project
* (http://jdbm.sourceforge.net/).
*
* THIS SOFTWARE IS PROVIDED BY THE JDBM PROJECT AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED 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
* CEES DE GROOT OR ANY CONTRIBUTORS 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.
*
* Copyright 2000 (C) Cees de Groot. All Rights Reserved.
* Contributions are Copyright (C) 2000 by their associated contributors.
*
*/
package jdbm.htree;
import jdbm.RecordManager;
import jdbm.recman.BaseRecordManager;
import jdbm.recman.TestRecordFile;
import junit.framework.*;
/**
* Test cases for HTree rollback
*/
public class TestRollback
extends TestCase
{
public TestRollback( String name )
{
super(name);
}
public void setUp()
{
TestRecordFile.deleteTestFile();
}
public void tearDown()
{
TestRecordFile.deleteTestFile();
}
/**
* Test case courtesy of Derek Dick (mailto:ddick@users.sourceforge.net)
*/
public void testRollback1()
throws Exception
{
RecordManager recman;
long root;
// Note: We start out with an empty file
recman = new BaseRecordManager( TestRecordFile.testFileName );
root = recman.getNamedObject( "xyz" );
HTree tree = null;
if ( root == 0 ) {
// create a new one
tree = HTree.createInstance( recman );
root = tree.getRecid();
recman.setNamedObject( "xyz", root );
recman.commit();
} else {
tree = HTree.load( recman, root );
}
tree.put( "Foo", "Bar" );
tree.put( "Fo", "Fum" );
recman.commit();
tree.put( "Hello", "World" );
recman.rollback();
tree = HTree.load( recman, root );
assertTrue( tree.get( "Foo" ).equals( "Bar" ) );
assertTrue( tree.get( "Fo" ).equals( "Fum" ) );
assertTrue( tree.get( "Hello" ) == null );
}
/**
* Test case courtesy of Derek Dick (mailto:ddick@users.sourceforge.net)
*/
public void testRollback2()
throws Exception
{
RecordManager recman;
long root;
// Note: We start out with an empty file
recman = new BaseRecordManager( TestRecordFile.testFileName );
root = recman.getNamedObject( "xyz" );
HTree tree = null;
if ( root == 0 ) {
// create a new one
tree = HTree.createInstance( recman );
root = tree.getRecid();
recman.setNamedObject( "xyz", root );
recman.commit();
} else {
tree = HTree.load( recman, root );
}
tree.put( "hello", "world" );
tree.put( "goodnight", "gracie" );
recman.commit();
tree.put( "derek", "dick" );
recman.rollback();
assertTrue( tree.get( "derek" ) == null );
assertTrue( tree.get( "goodnight" ).equals( "gracie" ) );
assertTrue( tree.get( "hello" ).equals( "world" ) );
}
/**
* Runs all tests in this class
*/
public static void main( String[] args )
{
junit.textui.TestRunner.run( new TestSuite( TestRollback.class ) );
}
}