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FusionIndexPopulatorTest.java
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FusionIndexPopulatorTest.java
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/*
* Copyright (c) 2002-2019 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.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.kernel.impl.index.schema.fusion;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumMap;
import java.util.List;
import org.neo4j.internal.kernel.api.schema.LabelSchemaDescriptor;
import org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException;
import org.neo4j.kernel.api.index.IndexEntryUpdate;
import org.neo4j.kernel.api.index.IndexPopulator;
import org.neo4j.kernel.impl.index.schema.IndexDropAction;
import org.neo4j.values.storable.Value;
import static org.junit.Assert.fail;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyBoolean;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.reset;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexTestHelp.add;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexTestHelp.fill;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexTestHelp.verifyCallFail;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionVersion.v00;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionVersion.v10;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionVersion.v20;
import static org.neo4j.kernel.impl.index.schema.fusion.IndexSlot.LUCENE;
import static org.neo4j.kernel.impl.index.schema.fusion.IndexSlot.NUMBER;
import static org.neo4j.kernel.impl.index.schema.fusion.IndexSlot.SPATIAL;
import static org.neo4j.kernel.impl.index.schema.fusion.IndexSlot.STRING;
import static org.neo4j.kernel.impl.index.schema.fusion.IndexSlot.TEMPORAL;
@RunWith( Parameterized.class )
public class FusionIndexPopulatorTest
{
private IndexPopulator[] alivePopulators;
private EnumMap<IndexSlot,IndexPopulator> populators;
private FusionIndexPopulator fusionIndexPopulator;
private final long indexId = 8;
private final IndexDropAction dropAction = mock( IndexDropAction.class );
@Parameterized.Parameters( name = "{0}" )
public static FusionVersion[] versions()
{
return new FusionVersion[]
{
v00, v10, v20
};
}
@Parameterized.Parameter
public static FusionVersion fusionVersion;
@Before
public void setup()
{
initiateMocks();
}
private void initiateMocks()
{
IndexSlot[] aliveSlots = fusionVersion.aliveSlots();
populators = new EnumMap<>( IndexSlot.class );
fill( populators, IndexPopulator.EMPTY );
alivePopulators = new IndexPopulator[aliveSlots.length];
for ( int i = 0; i < aliveSlots.length; i++ )
{
IndexPopulator mock = mock( IndexPopulator.class );
alivePopulators[i] = mock;
switch ( aliveSlots[i] )
{
case STRING:
populators.put( STRING, mock );
break;
case NUMBER:
populators.put( NUMBER, mock );
break;
case SPATIAL:
populators.put( SPATIAL, mock );
break;
case TEMPORAL:
populators.put( TEMPORAL, mock );
break;
case LUCENE:
populators.put( LUCENE, mock );
break;
default:
throw new RuntimeException();
}
}
fusionIndexPopulator = new FusionIndexPopulator( fusionVersion.slotSelector(), new InstanceSelector<>( populators ), indexId, dropAction, false );
}
private void resetMocks()
{
for ( IndexPopulator alivePopulator : alivePopulators )
{
reset( alivePopulator );
}
}
/* create */
@Test
public void createMustCreateAll() throws Exception
{
// when
fusionIndexPopulator.create();
// then
for ( IndexPopulator alivePopulator : alivePopulators )
{
verify( alivePopulator, times( 1 ) ).create();
}
}
@Test
public void createRemoveAnyLeftOversThatWasThereInIndexDirectoryBeforePopulation() throws IOException
{
fusionIndexPopulator.create();
verify( dropAction ).drop( indexId, false );
}
@Test
public void createMustThrowIfAnyThrow() throws Exception
{
for ( IndexPopulator alivePopulator : alivePopulators )
{
// given
UncheckedIOException failure = new UncheckedIOException( new IOException( "fail" ) );
doThrow( failure ).when( alivePopulator ).create();
verifyCallFail( failure, () ->
{
fusionIndexPopulator.create();
return null;
} );
// reset throw for testing of next populator
doAnswer( invocation -> null ).when( alivePopulator ).create();
}
}
/* drop */
@Test
public void dropMustDropAll()
{
// when
fusionIndexPopulator.drop();
// then
for ( IndexPopulator alivePopulator : alivePopulators )
{
verify( alivePopulator, times( 1 ) ).drop();
}
verify( dropAction ).drop( indexId );
}
@Test
public void dropMustThrowIfAnyDropThrow()
{
for ( IndexPopulator alivePopulator : alivePopulators )
{
// given
UncheckedIOException failure = new UncheckedIOException( new IOException( "fail" ) );
doThrow( failure ).when( alivePopulator ).drop();
verifyCallFail( failure, () ->
{
fusionIndexPopulator.drop();
return null;
} );
// reset throw for testing of next populator
doAnswer( invocation -> null ).when( alivePopulator ).drop();
}
}
/* add */
@Test
public void addMustSelectCorrectPopulator() throws Exception
{
// given
EnumMap<IndexSlot,Value[]> values = FusionIndexTestHelp.valuesByGroup();
Value[] allValues = FusionIndexTestHelp.allValues();
for ( IndexSlot slot : IndexSlot.values() )
{
for ( Value value : values.get( slot ) )
{
verifyAddWithCorrectPopulator( orLucene( populators.get( slot ) ), value );
}
}
// All composite values should go to lucene
for ( Value firstValue : allValues )
{
for ( Value secondValue : allValues )
{
verifyAddWithCorrectPopulator( populators.get( LUCENE ), firstValue, secondValue );
}
}
}
private void verifyAddWithCorrectPopulator( IndexPopulator correctPopulator, Value... numberValues )
throws IndexEntryConflictException, IOException
{
Collection<IndexEntryUpdate<LabelSchemaDescriptor>> update = Collections.singletonList( add( numberValues ) );
fusionIndexPopulator.add( update );
verify( correctPopulator, times( 1 ) ).add( update );
for ( IndexPopulator alivePopulator : alivePopulators )
{
if ( alivePopulator != correctPopulator )
{
verify( alivePopulator, never() ).add( update );
}
}
}
/* verifyDeferredConstraints */
@Test
public void verifyDeferredConstraintsMustThrowIfAnyThrow() throws Exception
{
for ( IndexPopulator alivePopulator : alivePopulators )
{
// given
IndexEntryConflictException failure = mock( IndexEntryConflictException.class );
doThrow( failure ).when( alivePopulator ).verifyDeferredConstraints( any() );
verifyCallFail( failure, () ->
{
fusionIndexPopulator.verifyDeferredConstraints( null );
return null;
} );
// reset throw for testing of next populator
doAnswer( invocation -> null ).when( alivePopulator ).verifyDeferredConstraints( any() );
}
}
/* close */
@Test
public void successfulCloseMustCloseAll() throws Exception
{
// when
closeAndVerifyPropagation( true );
}
@Test
public void unsuccessfulCloseMustCloseAll() throws Exception
{
// when
closeAndVerifyPropagation( false );
}
private void closeAndVerifyPropagation( boolean populationCompletedSuccessfully ) throws IOException
{
fusionIndexPopulator.close( populationCompletedSuccessfully );
// then
for ( IndexPopulator alivePopulator : alivePopulators )
{
verify( alivePopulator, times( 1 ) ).close( populationCompletedSuccessfully );
}
}
@Test
public void closeMustThrowIfCloseAnyThrow() throws Exception
{
for ( IndexSlot aliveSlot : fusionVersion.aliveSlots() )
{
// given
UncheckedIOException failure = new UncheckedIOException( new IOException( "fail" ) );
doThrow( failure ).when( populators.get( aliveSlot ) ).close( anyBoolean() );
verifyCallFail( failure, () ->
{
fusionIndexPopulator.close( anyBoolean() );
return null;
} );
initiateMocks();
}
}
private void verifyOtherCloseOnThrow( IndexPopulator throwingPopulator ) throws Exception
{
// given
UncheckedIOException failure = new UncheckedIOException( new IOException( "fail" ) );
doThrow( failure ).when( throwingPopulator ).close( anyBoolean() );
// when
try
{
fusionIndexPopulator.close( true );
fail( "Should have failed" );
}
catch ( UncheckedIOException ignore )
{
}
// then
for ( IndexPopulator alivePopulator : alivePopulators )
{
verify( alivePopulator, times( 1 ) ).close( true );
}
}
@Test
public void closeMustCloseOthersIfAnyThrow() throws Exception
{
for ( IndexSlot throwingSlot : fusionVersion.aliveSlots() )
{
verifyOtherCloseOnThrow( populators.get( throwingSlot ) );
initiateMocks();
}
}
@Test
public void closeMustThrowIfAllThrow() throws Exception
{
// given
List<UncheckedIOException> failures = new ArrayList<>();
for ( IndexPopulator alivePopulator : alivePopulators )
{
UncheckedIOException failure = new UncheckedIOException( new IOException( "FAILURE[" + alivePopulator + "]" ) );
failures.add( failure );
doThrow( failure ).when( alivePopulator ).close( anyBoolean() );
}
try
{
// when
fusionIndexPopulator.close( anyBoolean() );
fail( "Should have failed" );
}
catch ( UncheckedIOException e )
{
// then
if ( !failures.contains( e ) )
{
fail( "Thrown exception didn't match any of the expected failures: " + failures );
}
}
}
/* markAsFailed */
@Test
public void markAsFailedMustMarkAll() throws Exception
{
// when
String failureMessage = "failure";
fusionIndexPopulator.markAsFailed( failureMessage );
// then
for ( IndexPopulator alivePopulator : alivePopulators )
{
verify( alivePopulator, times( 1 ) ).markAsFailed( failureMessage );
}
}
@Test
public void markAsFailedMustThrowIfAnyThrow() throws Exception
{
for ( IndexPopulator alivePopulator : alivePopulators )
{
// given
UncheckedIOException failure = new UncheckedIOException( new IOException( "fail" ) );
doThrow( failure ).when( alivePopulator ).markAsFailed( anyString() );
// then
verifyCallFail( failure, () ->
{
fusionIndexPopulator.markAsFailed( anyString() );
return null;
} );
// reset throw for testing of next populator
doAnswer( invocation -> null ).when( alivePopulator ).markAsFailed( anyString() );
}
}
@Test
public void shouldIncludeSampleOnCorrectPopulator()
{
// given
EnumMap<IndexSlot,Value[]> values = FusionIndexTestHelp.valuesByGroup();
for ( IndexSlot activeSlot : fusionVersion.aliveSlots() )
{
verifySampleToCorrectPopulator( values.get( activeSlot ), populators.get( activeSlot ) );
}
}
private void verifySampleToCorrectPopulator( Value[] values, IndexPopulator populator )
{
for ( Value value : values )
{
// when
IndexEntryUpdate<LabelSchemaDescriptor> update = add( value );
fusionIndexPopulator.includeSample( update );
// then
verify( populator ).includeSample( update );
reset( populator );
}
}
private IndexPopulator orLucene( IndexPopulator populator )
{
return populator != IndexPopulator.EMPTY ? populator : populators.get( LUCENE );
}
}