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Tests for CombinedSchemaIndexProvider
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...est/java/org/neo4j/kernel/impl/index/schema/combined/CombinedSchemaIndexProviderTest.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.impl.index.schema.combined; | ||
|
|
||
| import org.apache.commons.lang3.ArrayUtils; | ||
| import org.junit.Rule; | ||
| import org.junit.Test; | ||
|
|
||
| import org.neo4j.kernel.api.index.InternalIndexState; | ||
| import org.neo4j.kernel.api.index.SchemaIndexProvider; | ||
| import org.neo4j.kernel.api.schema.index.IndexDescriptor; | ||
| import org.neo4j.kernel.api.schema.index.IndexDescriptorFactory; | ||
| import org.neo4j.storageengine.api.schema.IndexSample; | ||
| import org.neo4j.test.rule.RandomRule; | ||
| import org.neo4j.values.storable.Value; | ||
| import org.neo4j.values.storable.Values; | ||
|
|
||
| import static org.hamcrest.CoreMatchers.containsString; | ||
| import static org.junit.Assert.assertEquals; | ||
| import static org.junit.Assert.assertNull; | ||
| import static org.junit.Assert.assertSame; | ||
| import static org.junit.Assert.assertThat; | ||
| import static org.junit.Assert.fail; | ||
| import static org.mockito.Matchers.any; | ||
| import static org.mockito.Matchers.anyLong; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.when; | ||
| import static org.neo4j.kernel.impl.index.schema.combined.CombinedSchemaIndexProvider.select; | ||
|
|
||
| public class CombinedSchemaIndexProviderTest | ||
| { | ||
| @Rule | ||
| public RandomRule random = new RandomRule(); | ||
|
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| @Test | ||
| public void mustThrowForMixedAndReportCorrectForMatchingInitialState() throws Exception | ||
| { | ||
| // given | ||
| SchemaIndexProvider boostProvider = mock( SchemaIndexProvider.class ); | ||
| SchemaIndexProvider fallbackProvider = mock( SchemaIndexProvider.class ); | ||
| CombinedSchemaIndexProvider combinedSchemaIndexProvider = new CombinedSchemaIndexProvider( boostProvider, fallbackProvider ); | ||
| IndexDescriptor anyIndexDescriptor = IndexDescriptorFactory.forLabel( 0, 0 ); | ||
|
|
||
| for ( InternalIndexState boostState : InternalIndexState.values() ) | ||
| { | ||
| setInitialState( boostProvider, boostState ); | ||
| for ( InternalIndexState fallbackState : InternalIndexState.values() ) | ||
| { | ||
| setInitialState( fallbackProvider, fallbackState ); | ||
|
|
||
| // when | ||
| if ( boostState != fallbackState ) | ||
| { | ||
| // then | ||
| try | ||
| { | ||
| combinedSchemaIndexProvider.getInitialState( 0, anyIndexDescriptor ); | ||
| fail( "Should have failed" ); | ||
| } | ||
| catch ( IllegalStateException e ) | ||
| { | ||
| // good | ||
| } | ||
| } | ||
| else | ||
| { | ||
| // or then | ||
| assertSame( boostState, combinedSchemaIndexProvider.getInitialState( 0, anyIndexDescriptor ) ); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private void setInitialState( SchemaIndexProvider mockedProvider, InternalIndexState state ) | ||
| { | ||
| when( mockedProvider.getInitialState( anyLong(), any( IndexDescriptor.class ) ) ).thenReturn( state ); | ||
| } | ||
|
|
||
| @Test | ||
| public void mustSelectCorrectTargetForAllGivenValueCombinations() throws Exception | ||
| { | ||
| // given | ||
| SchemaIndexProvider boostProvider = mock( SchemaIndexProvider.class ); | ||
| SchemaIndexProvider fallbackProvider = mock( SchemaIndexProvider.class ); | ||
|
|
||
| Value[] numberValues = new Value[] | ||
| { | ||
| Values.byteValue( (byte) 1 ), | ||
| Values.shortValue( (short) 2 ), | ||
| Values.intValue( 3 ), | ||
| Values.longValue( 4 ), | ||
| Values.floatValue( 5.6f ), | ||
| Values.doubleValue( 7.8 ) | ||
| }; | ||
| Value[] otherValues = new Value[] | ||
| { | ||
| Values.booleanValue( true ), | ||
| Values.charValue( 'a' ), | ||
| Values.stringValue( "bcd" ), | ||
| Values.booleanArray( new boolean[2] ), | ||
| Values.byteArray( new byte[2] ), | ||
| Values.shortArray( new short[2] ), | ||
| Values.intArray( new int[2] ), | ||
| Values.longArray( new long[2] ), | ||
| Values.floatArray( new float[2] ), | ||
| Values.doubleArray( new double[2] ), | ||
| Values.charArray( new char[2] ), | ||
| Values.stringArray( new String[2] ), | ||
| Values.NO_VALUE | ||
| }; | ||
|
|
||
| // Number values should go to boost provider | ||
| for ( Value numberValue : numberValues ) | ||
| { | ||
| // when | ||
| SchemaIndexProvider selected = select( asArray( numberValue ), boostProvider, fallbackProvider ); | ||
|
|
||
| // then | ||
| assertSame( boostProvider, selected ); | ||
| } | ||
|
|
||
| // Other values should go to fallback provider | ||
| for ( Value otherValue : otherValues ) | ||
| { | ||
| // when | ||
| SchemaIndexProvider selected = select( asArray( otherValue ), boostProvider, fallbackProvider ); | ||
|
|
||
| // then | ||
| assertSame( fallbackProvider, selected ); | ||
| } | ||
|
|
||
| // All composite values should go to fallback | ||
| Value[] allValues = ArrayUtils.addAll( numberValues, otherValues ); | ||
| for ( Value firstValue : allValues ) | ||
| { | ||
| for ( Value secondValue : allValues ) | ||
| { | ||
| // when | ||
| SchemaIndexProvider selected = select( asArray( firstValue, secondValue ), boostProvider, fallbackProvider ); | ||
|
|
||
| // then | ||
| assertSame( fallbackProvider, selected ); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private Value[] asArray( Value... items ) | ||
| { | ||
| return items; | ||
| } | ||
|
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||
| @Test | ||
| public void mustCombineSamples() throws Exception | ||
| { | ||
| // given | ||
| int boostIndexSize = random.nextInt(); | ||
| int boostUniqueValues = random.nextInt(); | ||
| int boostSampleSize = random.nextInt(); | ||
| IndexSample boostSample = new IndexSample( boostIndexSize, boostUniqueValues, boostSampleSize ); | ||
|
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||
| int fallbackIndexSize = random.nextInt(); | ||
| int fallbackUniqueValues = random.nextInt(); | ||
| int fallbackSampleSize = random.nextInt(); | ||
| IndexSample fallbackSample = new IndexSample( fallbackIndexSize, fallbackUniqueValues, fallbackSampleSize ); | ||
|
|
||
| // when | ||
| IndexSample combinedSample = CombinedSchemaIndexProvider.combineSamples( boostSample, fallbackSample ); | ||
|
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||
| // then | ||
| assertEquals( boostIndexSize + fallbackIndexSize, combinedSample.indexSize() ); | ||
| assertEquals( boostUniqueValues + fallbackUniqueValues, combinedSample.uniqueValues() ); | ||
| assertEquals( boostSampleSize + fallbackSampleSize, combinedSample.sampleSize() ); | ||
| } | ||
|
|
||
| @Test | ||
| public void mustReportPopulationFailure() throws Exception | ||
| { | ||
| // given | ||
| SchemaIndexProvider boostProvider = mock( SchemaIndexProvider.class ); | ||
| SchemaIndexProvider fallbackProvider = mock( SchemaIndexProvider.class ); | ||
| CombinedSchemaIndexProvider combinedSchemaIndexProvider = new CombinedSchemaIndexProvider( boostProvider, fallbackProvider ); | ||
|
|
||
| // when | ||
| // ... no failure | ||
| when( boostProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | ||
| when( fallbackProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | ||
| // then | ||
| assertNull( combinedSchemaIndexProvider.getPopulationFailure( 0 ) ); | ||
|
|
||
| // when | ||
| // ... boost failure | ||
| String boostFailure = "boost failure"; | ||
| when( boostProvider.getPopulationFailure( anyLong() ) ).thenReturn( boostFailure ); | ||
| when( fallbackProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | ||
| // then | ||
| assertEquals( boostFailure, combinedSchemaIndexProvider.getPopulationFailure( 0 ) ); | ||
|
|
||
| // when | ||
| // ... fallback failure | ||
| String fallbackFailure = "fallback failure"; | ||
| when( boostProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | ||
| when( fallbackProvider.getPopulationFailure( anyLong() ) ).thenReturn( fallbackFailure ); | ||
| // then | ||
| assertEquals( fallbackFailure, combinedSchemaIndexProvider.getPopulationFailure( 0 ) ); | ||
|
|
||
| // when | ||
| // ... boost and fallback failure | ||
| when( boostProvider.getPopulationFailure( anyLong() ) ).thenReturn( boostFailure ); | ||
| when( fallbackProvider.getPopulationFailure( anyLong() ) ).thenReturn( fallbackFailure ); | ||
| // then | ||
| String populationFailure = combinedSchemaIndexProvider.getPopulationFailure( 0 ); | ||
| assertThat( populationFailure, containsString( boostFailure ) ); | ||
| assertThat( populationFailure, containsString( fallbackFailure ) ); | ||
| } | ||
| } |
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