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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; | |||
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import org.apache.commons.lang3.ArrayUtils; | |||
import org.junit.Rule; | |||
import org.junit.Test; | |||
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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; | |||
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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; | |||
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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 ); | |||
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for ( InternalIndexState boostState : InternalIndexState.values() ) | |||
{ | |||
setInitialState( boostProvider, boostState ); | |||
for ( InternalIndexState fallbackState : InternalIndexState.values() ) | |||
{ | |||
setInitialState( fallbackProvider, fallbackState ); | |||
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// 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 ) ); | |||
} | |||
} | |||
} | |||
} | |||
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private void setInitialState( SchemaIndexProvider mockedProvider, InternalIndexState state ) | |||
{ | |||
when( mockedProvider.getInitialState( anyLong(), any( IndexDescriptor.class ) ) ).thenReturn( state ); | |||
} | |||
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@Test | |||
public void mustSelectCorrectTargetForAllGivenValueCombinations() throws Exception | |||
{ | |||
// given | |||
SchemaIndexProvider boostProvider = mock( SchemaIndexProvider.class ); | |||
SchemaIndexProvider fallbackProvider = mock( SchemaIndexProvider.class ); | |||
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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 | |||
}; | |||
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// Number values should go to boost provider | |||
for ( Value numberValue : numberValues ) | |||
{ | |||
// when | |||
SchemaIndexProvider selected = select( asArray( numberValue ), boostProvider, fallbackProvider ); | |||
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// then | |||
assertSame( boostProvider, selected ); | |||
} | |||
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// Other values should go to fallback provider | |||
for ( Value otherValue : otherValues ) | |||
{ | |||
// when | |||
SchemaIndexProvider selected = select( asArray( otherValue ), boostProvider, fallbackProvider ); | |||
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// then | |||
assertSame( fallbackProvider, selected ); | |||
} | |||
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// 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 ); | |||
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// then | |||
assertSame( fallbackProvider, selected ); | |||
} | |||
} | |||
} | |||
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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 ); | |||
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// 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() ); | |||
} | |||
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@Test | |||
public void mustReportPopulationFailure() throws Exception | |||
{ | |||
// given | |||
SchemaIndexProvider boostProvider = mock( SchemaIndexProvider.class ); | |||
SchemaIndexProvider fallbackProvider = mock( SchemaIndexProvider.class ); | |||
CombinedSchemaIndexProvider combinedSchemaIndexProvider = new CombinedSchemaIndexProvider( boostProvider, fallbackProvider ); | |||
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// when | |||
// ... no failure | |||
when( boostProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | |||
when( fallbackProvider.getPopulationFailure( anyLong() ) ).thenReturn( null ); | |||
// then | |||
assertNull( combinedSchemaIndexProvider.getPopulationFailure( 0 ) ); | |||
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// 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 ) ); | |||
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// 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 ) ); | |||
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// 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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