/**
* Copyright (c) 2002-2011 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.index;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Transaction;
import org.neo4j.kernel.EmbeddedGraphDatabase;
public abstract class Neo4jTestCase
{
private static File basePath = new File( "target/var" );
private static File dbPath = new File( basePath, "neo4j-db" );
private static GraphDatabaseService graphDb;
private Transaction tx;
@BeforeClass
public static void setUpDb() throws Exception
{
deleteFileOrDirectory( dbPath );
graphDb = new EmbeddedGraphDatabase( dbPath.getAbsolutePath() );
}
@Before
public void setUpTest()
{
tx = graphDb.beginTx();
}
@After
public void tearDownTest()
{
if ( !manageMyOwnTxFinish() )
{
finishTx( true );
}
}
protected boolean manageMyOwnTxFinish()
{
return false;
}
protected void finishTx( boolean commit )
{
if ( tx == null )
{
return;
}
if ( commit )
{
tx.success();
}
tx.finish();
tx = null;
}
protected Transaction beginTx()
{
if ( tx == null )
{
tx = graphDb.beginTx();
}
return tx;
}
@AfterClass
public static void tearDownDb() throws Exception
{
graphDb.shutdown();
}
protected void beforeShutdown()
{
}
protected File getBasePath()
{
return basePath;
}
protected File getDbPath()
{
return dbPath;
}
public static void deleteFileOrDirectory( File file )
{
if ( !file.exists() )
{
return;
}
if ( file.isDirectory() )
{
for ( File child : file.listFiles() )
{
deleteFileOrDirectory( child );
}
}
file.delete();
}
protected void restartTx()
{
restartTx( true );
}
protected void restartTx( boolean success )
{
if ( success )
{
tx.success();
}
else
{
tx.failure();
}
tx.finish();
tx = graphDb.beginTx();
}
protected static GraphDatabaseService graphDb()
{
return graphDb;
}
// public static <T> void assertContains( IndexHits<T> hits, T... expectedItems )
// {
// assertEquals( expectedItems.length, hits.size() );
// assertContains( (Iterable<T>) hits, expectedItems );
// }
public static <T> void assertContains( Collection<T> collection,
T... expectedItems )
{
String collectionString = join( ", ", collection.toArray() );
assertEquals( collectionString, expectedItems.length,
collection.size() );
for ( T item : expectedItems )
{
assertTrue( collection.contains( item ) );
}
}
public static <T> void assertContains( Iterable<T> items, T... expectedItems )
{
assertContains( asCollection( items ), expectedItems );
}
public static <T> void assertContainsInOrder( Collection<T> collection,
T... expectedItems )
{
String collectionString = join( ", ", collection.toArray() );
assertEquals( collectionString, expectedItems.length, collection.size() );
Iterator<T> itr = collection.iterator();
for ( int i = 0; itr.hasNext(); i++ )
{
assertEquals( expectedItems[i], itr.next() );
}
}
public static <T> void assertContainsInOrder( Iterable<T> collection,
T... expectedItems )
{
assertContainsInOrder( asCollection( collection ), expectedItems );
}
public static <T> Collection<T> asCollection( Iterable<T> iterable )
{
List<T> list = new ArrayList<T>();
for ( T item : iterable )
{
list.add( item );
}
return list;
}
public static <T> String join( String delimiter, T... items )
{
StringBuffer buffer = new StringBuffer();
for ( T item : items )
{
if ( buffer.length() > 0 )
{
buffer.append( delimiter );
}
buffer.append( item.toString() );
}
return buffer.toString();
}
protected <T> int countIterable( Iterable<T> iterable )
{
int counter = 0;
Iterator<T> itr = iterable.iterator();
while ( itr.hasNext() )
{
itr.next();
counter++;
}
return counter;
}
}