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BatchInserterImplTest.java
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BatchInserterImplTest.java
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/*
* Copyright (c) 2002-2016 "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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.unsafe.batchinsert;
import org.junit.Rule;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.io.fs.DefaultFileSystemAbstraction;
import org.neo4j.kernel.StoreLockException;
import org.neo4j.kernel.internal.StoreLocker;
import org.neo4j.kernel.impl.store.NeoStores;
import org.neo4j.test.ReflectionUtil;
import org.neo4j.test.TargetDirectory;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import static org.neo4j.helpers.collection.MapUtil.stringMap;
public class BatchInserterImplTest
{
@Rule
public TargetDirectory.TestDirectory testDirectory = TargetDirectory.testDirForTest( getClass() );
@Test
public void testHonorsPassedInParams() throws Exception
{
BatchInserter inserter = BatchInserters.inserter( testDirectory.graphDbDir(), stringMap(
GraphDatabaseSettings.pagecache_memory.name(), "280K",
GraphDatabaseSettings.mapped_memory_page_size.name(), "1K" ) );
NeoStores neoStores = ReflectionUtil.getPrivateField( inserter, "neoStores", NeoStores.class );
PageCache pageCache = ReflectionUtil.getPrivateField( neoStores, "pageCache", PageCache.class );
inserter.shutdown();
int mappedMemoryTotalSize = pageCache.maxCachedPages() * pageCache.pageSize();
assertThat( "memory mapped config is active", mappedMemoryTotalSize, is( 280 * 1024 ) );
}
@Test
public void testCreatesStoreLockFile() throws Exception
{
// Given
File file = testDirectory.graphDbDir();
// When
BatchInserter inserter = BatchInserters.inserter( file.getAbsolutePath() );
// Then
assertThat( new File( file, StoreLocker.STORE_LOCK_FILENAME ).exists(), equalTo( true ) );
inserter.shutdown();
}
@Test
public void testFailsOnExistingStoreLockFile() throws IOException
{
// Given
File parent = testDirectory.graphDbDir();
StoreLocker lock = new StoreLocker( new DefaultFileSystemAbstraction() );
lock.checkLock( parent );
// When
try
{
BatchInserters.inserter( parent.getAbsolutePath() );
// Then
fail();
}
catch ( StoreLockException e )
{
// OK
}
finally
{
lock.release();
}
}
}