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StoreMigratorTest.java
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StoreMigratorTest.java
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/*
* Copyright (c) 2002-2017 "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.kernel.impl.storemigration.participant;
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.fs.DefaultFileSystemAbstraction;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.io.pagecache.tracing.cursor.PageCursorTracerSupplier;
import org.neo4j.kernel.api.index.SchemaIndexProvider;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.logging.LogService;
import org.neo4j.kernel.impl.logging.NullLogService;
import org.neo4j.kernel.impl.pagecache.ConfiguringPageCacheFactory;
import org.neo4j.kernel.impl.store.format.StoreVersion;
import org.neo4j.kernel.impl.store.format.highlimit.v300.HighLimitV3_0_0;
import org.neo4j.kernel.impl.storemigration.StoreVersionCheck;
import org.neo4j.kernel.impl.storemigration.StoreVersionCheck.Result;
import org.neo4j.kernel.impl.storemigration.monitoring.MigrationProgressMonitor;
import org.neo4j.logging.NullLog;
import org.neo4j.test.TestGraphDatabaseFactory;
import org.neo4j.test.rule.TestDirectory;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.neo4j.graphdb.factory.GraphDatabaseSettings.pagecache_memory;
import static org.neo4j.helpers.collection.MapUtil.stringMap;
import static org.neo4j.io.pagecache.tracing.PageCacheTracer.NULL;
import static org.neo4j.kernel.api.index.SchemaIndexProvider.NO_INDEX_PROVIDER;
import static org.neo4j.kernel.impl.storemigration.StoreFile.NEO_STORE;
import static org.neo4j.kernel.impl.storemigration.StoreFileType.STORE;
public class StoreMigratorTest
{
@Rule
public final TestDirectory directory = TestDirectory.testDirectory();
@Test
public void shouldNotDoActualStoreMigrationBetween3_0_5_and_next() throws Exception
{
// GIVEN a store in vE.H.0 format
File storeDir = directory.directory();
new TestGraphDatabaseFactory().newEmbeddedDatabaseBuilder( storeDir )
// The format should be vE.H.0, HighLimit.NAME may point to a different version in future versions
.setConfig( GraphDatabaseSettings.record_format, HighLimitV3_0_0.NAME )
.newGraphDatabase()
.shutdown();
Config config = Config.embeddedDefaults( stringMap( pagecache_memory.name(), "8m" ) );
try ( FileSystemAbstraction fs = new DefaultFileSystemAbstraction();
PageCache pageCache = new ConfiguringPageCacheFactory( fs, config, NULL,
PageCursorTracerSupplier.NULL, NullLog.getInstance() )
.getOrCreatePageCache() )
{
// For test code sanity
String fromStoreVersion = StoreVersion.HIGH_LIMIT_V3_0_0.versionString();
Result hasVersionResult = new StoreVersionCheck( pageCache ).hasVersion(
new File( storeDir, NEO_STORE.fileName( STORE ) ), fromStoreVersion );
assertTrue( hasVersionResult.actualVersion, hasVersionResult.outcome.isSuccessful() );
// WHEN
StoreMigrator migrator = new StoreMigrator( fs, pageCache, config, NullLogService.getInstance(),
NO_INDEX_PROVIDER );
MigrationProgressMonitor.Section monitor = mock( MigrationProgressMonitor.Section.class );
File migrationDir = new File( storeDir, "migration" );
fs.mkdirs( migrationDir );
migrator.migrate( storeDir, migrationDir, monitor, fromStoreVersion,
StoreVersion.HIGH_LIMIT_V3_0_6.versionString() );
// THEN
verifyNoMoreInteractions( monitor );
}
}
@Test
public void detectObsoleteCountStoresToRebuildDuringMigration() throws IOException
{
TestStoreMigrator storeMigrator = new TestStoreMigrator( new DefaultFileSystemAbstraction(),
mock( PageCache.class ), Config.empty(), NullLogService.getInstance(), mock( SchemaIndexProvider.class ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.STANDARD_V2_1.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.STANDARD_V2_2.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.STANDARD_V2_3.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.STANDARD_V3_0.versionString() ) );
assertFalse( storeMigrator.countStoreRebuildRequired( StoreVersion.STANDARD_V3_2.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.HIGH_LIMIT_V3_0_0.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.HIGH_LIMIT_V3_0_6.versionString() ) );
assertTrue( storeMigrator.countStoreRebuildRequired( StoreVersion.HIGH_LIMIT_V3_1_0.versionString() ) );
assertFalse( storeMigrator.countStoreRebuildRequired( StoreVersion.HIGH_LIMIT_V3_2_0.versionString() ) );
}
private class TestStoreMigrator extends StoreMigrator
{
TestStoreMigrator( FileSystemAbstraction fileSystem, PageCache pageCache, Config config, LogService logService,
SchemaIndexProvider schemaIndexProvider )
{
super( fileSystem, pageCache, config, logService, schemaIndexProvider );
}
@Override
public boolean countStoreRebuildRequired( String versionToMigrateFrom )
{
return super.countStoreRebuildRequired( versionToMigrateFrom );
}
}
}