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CompositeIndexPopulatorCompatibility.java
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CompositeIndexPopulatorCompatibility.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 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.api.index;
import org.junit.Ignore;
import org.junit.Test;
import java.util.Arrays;
import org.neo4j.collection.primitive.PrimitiveLongCollections;
import org.neo4j.collection.primitive.PrimitiveLongIterator;
import org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException;
import org.neo4j.kernel.api.schema_new.IndexQuery;
import org.neo4j.kernel.api.schema_new.OrderedPropertyValues;
import org.neo4j.kernel.api.schema_new.index.NewIndexDescriptor;
import org.neo4j.kernel.api.schema_new.index.NewIndexDescriptorFactory;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.api.index.sampling.IndexSamplingConfig;
import org.neo4j.storageengine.api.schema.IndexReader;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import static org.neo4j.helpers.collection.Iterators.asSet;
@Ignore( "Not a test. This is a compatibility suite that provides test cases for verifying" +
" SchemaIndexProvider implementations. Each index provider that is to be tested by this suite" +
" must create their own test class extending IndexProviderCompatibilityTestSuite." +
" The @Ignore annotation doesn't prevent these tests to run, it rather removes some annoying" +
" errors or warnings in some IDEs about test classes needing a public zero-arg constructor." )
public class CompositeIndexPopulatorCompatibility extends IndexProviderCompatibilityTestSuite.Compatibility
{
public CompositeIndexPopulatorCompatibility(
IndexProviderCompatibilityTestSuite testSuite, NewIndexDescriptor descriptor )
{
super( testSuite, descriptor );
}
public static class General extends CompositeIndexPopulatorCompatibility
{
public General( IndexProviderCompatibilityTestSuite testSuite )
{
super( testSuite, NewIndexDescriptorFactory.forLabel( 1000, 100, 200 ) );
}
@Test
public void shouldProvidePopulatorThatAcceptsDuplicateEntries() throws Exception
{
// when
IndexSamplingConfig indexSamplingConfig = new IndexSamplingConfig( Config.empty() );
IndexPopulator populator = indexProvider.getPopulator( 17, descriptor, indexSamplingConfig );
populator.create();
populator.add( Arrays.asList(
IndexEntryUpdate.add( 1, descriptor.schema(), "v1", "v2" ),
IndexEntryUpdate.add( 2, descriptor.schema(), "v1", "v2" ) ) );
populator.close( true );
// then
IndexAccessor accessor = indexProvider.getOnlineAccessor( 17, descriptor, indexSamplingConfig );
try ( IndexReader reader = accessor.newReader() )
{
PrimitiveLongIterator nodes = reader.query( IndexQuery.exact( 1, "v1" ), IndexQuery.exact( 1, "v2" ) );
assertEquals( asSet( 1L, 2L ), PrimitiveLongCollections.toSet( nodes ) );
}
accessor.close();
}
}
public static class Unique extends CompositeIndexPopulatorCompatibility
{
String value1 = "value1";
String value2 = "value2";
String value3 = "value3";
int nodeId1 = 3;
int nodeId2 = 4;
public Unique( IndexProviderCompatibilityTestSuite testSuite )
{
super( testSuite, NewIndexDescriptorFactory.uniqueForLabel( 1000, 100, 200 ) );
}
@Test
public void shouldEnforceUniqueConstraintsDirectly() throws Exception
{
// when
IndexSamplingConfig indexSamplingConfig = new IndexSamplingConfig( Config.empty() );
IndexPopulator populator = indexProvider.getPopulator( 17, descriptor, indexSamplingConfig );
populator.create();
populator.add( Arrays.asList(
IndexEntryUpdate.add( nodeId1, descriptor.schema(), value1, value2 ),
IndexEntryUpdate.add( nodeId2, descriptor.schema(), value1, value2 ) ) );
try
{
NodePropertyAccessor propertyAccessor =
new NodePropertyAccessor( nodeId1, descriptor.schema(), value1, value2 );
propertyAccessor.addNode( nodeId2, descriptor.schema(), value1, value2 );
populator.verifyDeferredConstraints( propertyAccessor );
fail( "expected exception" );
}
// then
catch ( IndexEntryConflictException conflict )
{
assertEquals( nodeId1, conflict.getExistingNodeId() );
assertEquals( OrderedPropertyValues.ofUndefined( value1, value2 ), conflict.getPropertyValues() );
assertEquals( nodeId2, conflict.getAddedNodeId() );
}
}
@Test
public void shouldNotRestrictUpdatesDifferingOnSecondProperty() throws Exception
{
// given
IndexSamplingConfig indexSamplingConfig = new IndexSamplingConfig( Config.empty() );
IndexPopulator populator = indexProvider.getPopulator( 17, descriptor, indexSamplingConfig );
populator.create();
// when
populator.add( Arrays.asList(
IndexEntryUpdate.add( nodeId1, descriptor.schema(), value1, value2 ),
IndexEntryUpdate.add( nodeId2, descriptor.schema(), value1, value3 ) ) );
NodePropertyAccessor propertyAccessor =
new NodePropertyAccessor( nodeId1, descriptor.schema(), value1, value2 );
propertyAccessor.addNode( nodeId2, descriptor.schema(), value1, value3 );
// then this should pass fine
populator.verifyDeferredConstraints( propertyAccessor );
}
}
}