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Break out BlockEntry read and write to BlockEntry class
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103 changes: 103 additions & 0 deletions
103
community/kernel/src/test/java/org/neo4j/kernel/impl/index/schema/BlockEntryTest.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,103 @@ | ||
| /* | ||
| * 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; | ||
|
|
||
| import org.apache.commons.lang3.mutable.MutableLong; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.api.extension.ExtendWith; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
||
| import org.neo4j.index.internal.gbptree.SimpleLongLayout; | ||
| import org.neo4j.io.pagecache.ByteArrayPageCursor; | ||
| import org.neo4j.io.pagecache.PageCursor; | ||
| import org.neo4j.test.extension.Inject; | ||
| import org.neo4j.test.extension.RandomExtension; | ||
| import org.neo4j.test.rule.RandomRule; | ||
|
|
||
| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
|
|
||
| @ExtendWith( RandomExtension.class ) | ||
| class BlockEntryTest | ||
| { | ||
| @Inject | ||
| RandomRule rnd; | ||
|
|
||
| private static final PageCursor pageCursor = ByteArrayPageCursor.wrap( 1000 ); | ||
| private static SimpleLongLayout layout; | ||
|
|
||
| @BeforeEach | ||
| void setup() | ||
| { | ||
| layout = SimpleLongLayout.longLayout() | ||
| .withFixedSize( rnd.nextBoolean() ) | ||
| .withKeyPadding( rnd.nextInt( 10 ) ) | ||
| .build(); | ||
| } | ||
|
|
||
| @Test | ||
| void shouldReadWriteSingleEntry() | ||
| { | ||
| // given | ||
| MutableLong writeKey = layout.key( rnd.nextLong() ); | ||
| MutableLong writeValue = layout.value( rnd.nextLong() ); | ||
| int offset = pageCursor.getOffset(); | ||
| BlockEntry.write( pageCursor, layout, writeKey, writeValue ); | ||
|
|
||
| // when | ||
| MutableLong readKey = layout.newKey(); | ||
| MutableLong readValue = layout.newValue(); | ||
| pageCursor.setOffset( offset ); | ||
| BlockEntry.read( pageCursor, layout, readKey, readValue ); | ||
|
|
||
| // then | ||
| assertEquals( 0, layout.compare( writeKey, readKey ) ); | ||
| assertEquals( 0, layout.compare( writeValue, readValue ) ); | ||
| } | ||
|
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||
| @Test | ||
| void shouldReadWriteMultipleEntries() | ||
| { | ||
| List<BlockEntry<MutableLong,MutableLong>> expectedEntries = new ArrayList<>(); | ||
| int nbrOfEntries = 10; | ||
| int offset = pageCursor.getOffset(); | ||
| for ( int i = 0; i < nbrOfEntries; i++ ) | ||
| { | ||
| BlockEntry<MutableLong,MutableLong> entry = new BlockEntry<>( layout.key( rnd.nextLong() ), layout.value( rnd.nextLong() ) ); | ||
| BlockEntry.write( pageCursor, layout, entry ); | ||
| expectedEntries.add( entry ); | ||
| } | ||
|
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| pageCursor.setOffset( offset ); | ||
| for ( BlockEntry<MutableLong,MutableLong> expectedEntry : expectedEntries ) | ||
| { | ||
| BlockEntry<MutableLong,MutableLong> actualEntry = BlockEntry.read( pageCursor, layout ); | ||
| assertBlockEquals( expectedEntry, actualEntry ); | ||
| } | ||
| } | ||
|
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| private void assertBlockEquals( BlockEntry<MutableLong,MutableLong> expected, BlockEntry<MutableLong,MutableLong> actual ) | ||
| { | ||
| assertEquals( 0, layout.compare( expected.key(), actual.key() ) ); | ||
| assertEquals( 0, layout.compare( expected.value(), actual.value() ) ); | ||
| } | ||
| } |
19 changes: 19 additions & 0 deletions
19
community/kernel/src/test/java/org/neo4j/kernel/impl/index/schema/BlockStorageTest.java
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