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RelationshipTransactionStateTestBase.java
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RelationshipTransactionStateTestBase.java
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/*
* Copyright (c) 2002-2018 "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.internal.kernel.api;
import org.eclipse.collections.api.set.primitive.MutableLongSet;
import org.eclipse.collections.impl.set.mutable.primitive.LongHashSet;
import org.junit.Test;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
import org.neo4j.graphdb.Relationship;
import org.neo4j.internal.kernel.api.exceptions.EntityNotFoundException;
import org.neo4j.internal.kernel.api.exceptions.KernelException;
import org.neo4j.values.storable.ValueGroup;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.neo4j.graphdb.Direction.BOTH;
import static org.neo4j.graphdb.Direction.INCOMING;
import static org.neo4j.graphdb.Direction.OUTGOING;
import static org.neo4j.internal.kernel.api.RelationshipTestSupport.assertCounts;
import static org.neo4j.internal.kernel.api.RelationshipTestSupport.computeKey;
import static org.neo4j.internal.kernel.api.RelationshipTestSupport.count;
import static org.neo4j.internal.kernel.api.RelationshipTestSupport.sparse;
import static org.neo4j.internal.kernel.api.RelationshipTransactionStateTestBase.RelationshipDirection.IN;
import static org.neo4j.internal.kernel.api.RelationshipTransactionStateTestBase.RelationshipDirection.LOOP;
import static org.neo4j.internal.kernel.api.RelationshipTransactionStateTestBase.RelationshipDirection.OUT;
import static org.neo4j.values.storable.Values.NO_VALUE;
import static org.neo4j.values.storable.Values.longValue;
import static org.neo4j.values.storable.Values.stringValue;
@SuppressWarnings( "Duplicates" )
public abstract class RelationshipTransactionStateTestBase<G extends KernelAPIWriteTestSupport>
extends KernelAPIWriteTestBase<G>
{
@Test
public void shouldSeeSingleRelationshipInTransaction() throws Exception
{
int label;
long n1, n2;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
// setup extra relationship to challenge the implementation
long decoyNode = tx.dataWrite().nodeCreate();
label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
tx.dataWrite().relationshipCreate( n2, label, decoyNode );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
long r = tx.dataWrite().relationshipCreate( n1, label, n2 );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor() )
{
tx.dataRead().singleRelationship( r, relationship );
assertTrue( "should find relationship", relationship.next() );
assertEquals( label, relationship.type() );
assertEquals( n1, relationship.sourceNodeReference() );
assertEquals( n2, relationship.targetNodeReference() );
assertEquals( r, relationship.relationshipReference() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldNotSeeSingleRelationshipWhichWasDeletedInTransaction() throws Exception
{
int label;
long n1, n2, r;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
long decoyNode = tx.dataWrite().nodeCreate();
tx.dataWrite().relationshipCreate( n2, label, decoyNode ); // to have >1 relationship in the db
r = tx.dataWrite().relationshipCreate( n1, label, n2 );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
assertTrue( "should delete relationship", tx.dataWrite().relationshipDelete( r ) );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor() )
{
tx.dataRead().singleRelationship( r, relationship );
assertFalse( "should not find relationship", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldScanRelationshipInTransaction() throws Exception
{
final int nRelationshipsInStore = 10;
int type;
long n1, n2;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
// setup some in store relationships
type = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
relateNTimes( nRelationshipsInStore, type, n1, n2, tx );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
long r = tx.dataWrite().relationshipCreate( n1, type, n2 );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor() )
{
tx.dataRead().allRelationshipsScan( relationship );
assertCountRelationships( relationship, nRelationshipsInStore + 1, n1, type, n2 );
}
tx.success();
}
}
@Test
public void shouldNotScanRelationshipWhichWasDeletedInTransaction() throws Exception
{
final int nRelationshipsInStore = 5 + 1 + 5;
int type;
long n1, n2, r;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
type = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
relateNTimes( 5, type, n1, n2, tx );
r = tx.dataWrite().relationshipCreate( n1, type, n2 );
relateNTimes( 5, type, n1, n2, tx );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
assertTrue( "should delete relationship", tx.dataWrite().relationshipDelete( r ) );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor() )
{
tx.dataRead().allRelationshipsScan( relationship );
assertCountRelationships( relationship, nRelationshipsInStore - 1, n1, type, n2 );
}
tx.success();
}
}
@Test
public void shouldSeeRelationshipInTransaction() throws Exception
{
long n1, n2;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
int label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
long r = tx.dataWrite().relationshipCreate( n1, label, n2 );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor relationship = tx.cursors().allocateRelationshipTraversalCursor() )
{
tx.dataRead().singleNode( n1, node );
assertTrue( "should access node", node.next() );
node.allRelationships( relationship );
assertTrue( "should find relationship", relationship.next() );
assertEquals( r, relationship.relationshipReference() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldNotSeeRelationshipDeletedInTransaction() throws Exception
{
long n1, n2, r;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
int label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
r = tx.dataWrite().relationshipCreate( n1, label, n2 );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
tx.dataWrite().relationshipDelete( r );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor relationship = tx.cursors().allocateRelationshipTraversalCursor() )
{
tx.dataRead().singleNode( n1, node );
assertTrue( "should access node", node.next() );
node.allRelationships( relationship );
assertFalse( "should not find relationship", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldSeeRelationshipInTransactionBeforeCursorInitialization() throws Exception
{
long n1, n2;
try ( Transaction tx = beginTransaction() )
{
n1 = tx.dataWrite().nodeCreate();
n2 = tx.dataWrite().nodeCreate();
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
int label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
long r = tx.dataWrite().relationshipCreate( n1, label, n2 );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor relationship = tx.cursors().allocateRelationshipTraversalCursor() )
{
tx.dataRead().singleNode( n1, node );
assertTrue( "should access node", node.next() );
node.allRelationships( relationship );
assertTrue( "should find relationship", relationship.next() );
assertEquals( r, relationship.relationshipReference() );
tx.dataWrite().relationshipCreate( n1, label, n2 ); // should not be seen
assertFalse( "should not find relationship added after cursor init", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldTraverseSparseNodeWithoutGroups() throws Exception
{
traverseWithoutGroups( sparse( graphDb ), false );
}
@Test
public void shouldTraverseDenseNodeWithoutGroups() throws Exception
{
traverseWithoutGroups( RelationshipTestSupport.dense( graphDb ), false );
}
@Test
public void shouldTraverseSparseNodeWithoutGroupsWithDetachedReferences() throws Exception
{
traverseWithoutGroups( sparse( graphDb ), true );
}
@Test
public void shouldTraverseDenseNodeWithoutGroupsWithDetachedReferences() throws Exception
{
traverseWithoutGroups( RelationshipTestSupport.dense( graphDb ), true );
}
@Test
public void shouldTraverseSparseNodeViaGroups() throws Exception
{
traverseViaGroups( sparse( graphDb ), false );
}
@Test
public void shouldTraverseDenseNodeViaGroups() throws Exception
{
traverseViaGroups( RelationshipTestSupport.dense( graphDb ), false );
}
@Test
public void shouldTraverseSparseNodeViaGroupsWithDetachedReferences() throws Exception
{
traverseViaGroups( sparse( graphDb ), true );
}
@Test
public void shouldTraverseDenseNodeViaGroupsWithDetachedReferences() throws Exception
{
traverseViaGroups( RelationshipTestSupport.dense( graphDb ), true );
}
@Test
public void shouldSeeNewRelationshipPropertyInTransaction() throws Exception
{
try ( Transaction tx = beginTransaction() )
{
String propKey1 = "prop1";
String propKey2 = "prop2";
long n1 = tx.dataWrite().nodeCreate();
long n2 = tx.dataWrite().nodeCreate();
int label = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
long r = tx.dataWrite().relationshipCreate( n1, label, n2 );
int prop1 = tx.token().propertyKeyGetOrCreateForName( propKey1 );
int prop2 = tx.token().propertyKeyGetOrCreateForName( propKey2 );
assertEquals( tx.dataWrite().relationshipSetProperty( r, prop1, stringValue( "hello" ) ), NO_VALUE );
assertEquals( tx.dataWrite().relationshipSetProperty( r, prop2, stringValue( "world" ) ), NO_VALUE );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor relationship = tx.cursors().allocateRelationshipTraversalCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleNode( n1, node );
assertTrue( "should access node", node.next() );
node.allRelationships( relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
while ( property.next() )
{
if ( property.propertyKey() == prop1 )
{
assertEquals( property.propertyValue(), stringValue( "hello" ) );
}
else if ( property.propertyKey() == prop2 )
{
assertEquals( property.propertyValue(), stringValue( "world" ) );
}
else
{
fail( property.propertyKey() + " was not the property key you were looking for" );
}
}
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
}
@Test
public void shouldSeeAddedPropertyFromExistingRelationshipWithoutPropertiesInTransaction() throws Exception
{
// Given
long relationshipId;
String propKey = "prop1";
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
relationshipId = write.relationshipCreate( write.nodeCreate(),
tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" ), write.nodeCreate() );
tx.success();
}
// When/Then
try ( Transaction tx = beginTransaction() )
{
int propToken = tx.token().propertyKeyGetOrCreateForName( propKey );
assertEquals( tx.dataWrite().relationshipSetProperty( relationshipId, propToken, stringValue( "hello" ) ),
NO_VALUE );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleRelationship( relationshipId, relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
assertTrue( property.next() );
assertEquals( propToken, property.propertyKey() );
assertEquals( property.propertyValue(), stringValue( "hello" ) );
assertFalse( "should only find one properties", property.next() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
try ( org.neo4j.graphdb.Transaction ignored = graphDb.beginTx() )
{
assertThat(
graphDb.getRelationshipById( relationshipId ).getProperty( propKey ), equalTo( "hello" ) );
}
}
@Test
public void shouldSeeAddedPropertyFromExistingRelationshipWithPropertiesInTransaction() throws Exception
{
// Given
long relationshipId;
String propKey1 = "prop1";
String propKey2 = "prop2";
int propToken1;
int propToken2;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
relationshipId = write.relationshipCreate( write.nodeCreate(),
tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" ), write.nodeCreate() );
propToken1 = tx.token().propertyKeyGetOrCreateForName( propKey1 );
assertEquals( write.relationshipSetProperty( relationshipId, propToken1, stringValue( "hello" ) ),
NO_VALUE );
tx.success();
}
// When/Then
try ( Transaction tx = beginTransaction() )
{
propToken2 = tx.token().propertyKeyGetOrCreateForName( propKey2 );
assertEquals( tx.dataWrite().relationshipSetProperty( relationshipId, propToken2, stringValue( "world" ) ),
NO_VALUE );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleRelationship( relationshipId, relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
while ( property.next() )
{
if ( property.propertyKey() == propToken1 )//from disk
{
assertEquals( property.propertyValue(), stringValue( "hello" ) );
}
else if ( property.propertyKey() == propToken2 )//from tx state
{
assertEquals( property.propertyValue(), stringValue( "world" ) );
}
else
{
fail( property.propertyKey() + " was not the property you were looking for" );
}
}
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
try ( org.neo4j.graphdb.Transaction ignored = graphDb.beginTx() )
{
Relationship relationship = graphDb.getRelationshipById( relationshipId );
assertThat( relationship.getProperty( propKey1 ), equalTo( "hello" ) );
assertThat( relationship.getProperty( propKey2 ), equalTo( "world" ) );
}
}
@Test
public void shouldSeeUpdatedPropertyFromExistingRelationshipWithPropertiesInTransaction() throws Exception
{
// Given
long relationshipId;
String propKey = "prop1";
int propToken;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
relationshipId = write.relationshipCreate( write.nodeCreate(),
tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" ), write.nodeCreate() );
propToken = tx.token().propertyKeyGetOrCreateForName( propKey );
assertEquals( write.relationshipSetProperty( relationshipId, propToken, stringValue( "hello" ) ),
NO_VALUE );
tx.success();
}
// When/Then
try ( Transaction tx = beginTransaction() )
{
assertEquals( tx.dataWrite().relationshipSetProperty( relationshipId, propToken, stringValue( "world" ) ),
stringValue( "hello" ) );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleRelationship( relationshipId, relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
assertTrue( property.next() );
assertEquals( propToken, property.propertyKey() );
assertEquals( property.propertyValue(), stringValue( "world" ) );
assertFalse( "should only find one property", property.next() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
try ( org.neo4j.graphdb.Transaction ignored = graphDb.beginTx() )
{
assertThat(
graphDb.getRelationshipById( relationshipId ).getProperty( propKey ), equalTo( "world" ) );
}
}
@Test
public void shouldNotSeeRemovedPropertyInTransaction() throws Exception
{
// Given
long relationshipId;
String propKey = "prop1";
int propToken;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
relationshipId = write.relationshipCreate( write.nodeCreate(),
tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" ), write.nodeCreate() );
propToken = tx.token().propertyKeyGetOrCreateForName( propKey );
assertEquals( write.relationshipSetProperty( relationshipId, propToken, stringValue( "hello" ) ),
NO_VALUE );
tx.success();
}
// When/Then
try ( Transaction tx = beginTransaction() )
{
assertEquals( tx.dataWrite().relationshipRemoveProperty( relationshipId, propToken ),
stringValue( "hello" ) );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleRelationship( relationshipId, relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
assertFalse( "should not find any properties", property.next() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
try ( org.neo4j.graphdb.Transaction ignored = graphDb.beginTx() )
{
assertFalse(
graphDb.getRelationshipById( relationshipId ).hasProperty( propKey ) );
}
}
@Test
public void shouldSeeRemovedThenAddedPropertyInTransaction() throws Exception
{
// Given
long relationshipId;
String propKey = "prop1";
int propToken;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
relationshipId = write.relationshipCreate( write.nodeCreate(),
tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" ), write.nodeCreate() );
propToken = tx.token().propertyKeyGetOrCreateForName( propKey );
assertEquals( write.relationshipSetProperty( relationshipId, propToken, stringValue( "hello" ) ),
NO_VALUE );
tx.success();
}
// When/Then
try ( Transaction tx = beginTransaction() )
{
assertEquals( tx.dataWrite().relationshipRemoveProperty( relationshipId, propToken ),
stringValue( "hello" ) );
assertEquals( tx.dataWrite().relationshipSetProperty( relationshipId, propToken, stringValue( "world" ) ),
NO_VALUE );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();
PropertyCursor property = tx.cursors().allocatePropertyCursor() )
{
tx.dataRead().singleRelationship( relationshipId, relationship );
assertTrue( "should access relationship", relationship.next() );
relationship.properties( property );
assertTrue( property.next() );
assertEquals( propToken, property.propertyKey() );
assertEquals( property.propertyValue(), stringValue( "world" ) );
assertFalse( "should not find any properties", property.next() );
assertFalse( "should only find one relationship", relationship.next() );
}
tx.success();
}
try ( org.neo4j.graphdb.Transaction ignored = graphDb.beginTx() )
{
assertThat(
graphDb.getRelationshipById( relationshipId ).getProperty( propKey ), equalTo( "world" ) );
}
}
@Test
public void shouldCountFromTxState() throws Exception
{
//dense outgoing
assertCount( 100, OUT, group ->
{
assertEquals( 101, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertEquals( 101, group.totalCount() );
} );
//sparse outgoing
assertCount( 1, OUT, group ->
{
assertEquals( 2, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertEquals( 2, group.totalCount() );
} );
//dense incoming
assertCount( 100, IN, group ->
{
assertEquals( 0, group.outgoingCount() );
assertEquals( 101, group.incomingCount() );
assertEquals( 0, group.outgoingCount() );
assertEquals( 101, group.totalCount() );
} );
//sparse incoming
assertCount( 1, IN, group ->
{
assertEquals( 0, group.outgoingCount() );
assertEquals( 2, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertEquals( 2, group.totalCount() );
} );
//dense loops
assertCount( 100, LOOP, group ->
{
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.outgoingCount() );
assertEquals( 101, group.loopCount() );
assertEquals( 101, group.totalCount() );
} );
//sparse loops
assertCount( 1, LOOP, group ->
{
assertEquals( 0, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 2, group.loopCount() );
assertEquals( 2, group.totalCount() );
} );
}
@Test
public void groupCursorShouldSeeNewTypes() throws Exception
{
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
long start = write.nodeCreate();
int outgoing = tx.tokenWrite().relationshipTypeGetOrCreateForName( "OUT" );
int incoming = tx.tokenWrite().relationshipTypeGetOrCreateForName( "IN" );
int looping = tx.tokenWrite().relationshipTypeGetOrCreateForName( "LOOP" );
long out = write.relationshipCreate( start, outgoing, write.nodeCreate() );
long in1 = write.relationshipCreate( write.nodeCreate(), incoming, start );
long in2 = write.relationshipCreate( write.nodeCreate(), incoming, start );
long loop = write.relationshipCreate( start, looping, start );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
node.relationships( group );
while ( group.next() )
{
int t = group.type();
if ( t == outgoing )
{
assertEquals( 1, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, out );
assertNoRelationships( IN, group, traversal );
assertNoRelationships( LOOP, group, traversal );
}
else if ( t == incoming )
{
assertEquals( 0, group.outgoingCount() );
assertEquals( 2, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( IN, group, traversal, in1, in2 );
assertNoRelationships( OUT, group, traversal );
assertNoRelationships( LOOP, group, traversal );
}
else if ( t == looping )
{
assertEquals( 0, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 1, group.loopCount() );
assertRelationships( LOOP, group, traversal, loop );
assertNoRelationships( OUT, group, traversal );
assertNoRelationships( IN, group, traversal );
}
else
{
fail( t + " is not the type you're looking for " );
}
}
}
}
}
@Test
public void groupCursorShouldAddToCountFromTxState() throws Exception
{
long start;
long existingRelationship;
int type;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
start = write.nodeCreate();
type = tx.tokenWrite().relationshipTypeGetOrCreateForName( "OUT" );
existingRelationship = write.relationshipCreate( start, type, write.nodeCreate() );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
long newRelationship = write.relationshipCreate( start, type, write.nodeCreate() );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
node.relationships( group );
assertTrue( group.next() );
assertEquals( type, group.type() );
assertEquals( 2, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, newRelationship, existingRelationship );
assertFalse( group.next() );
}
}
}
@Test
public void groupCursorShouldSeeBothOldAndNewRelationshipsFromSparseNode() throws Exception
{
long start;
long existingRelationship;
int one;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
start = write.nodeCreate();
one = tx.tokenWrite().relationshipTypeGetOrCreateForName( "ONE" );
existingRelationship = write.relationshipCreate( start, one, write.nodeCreate() );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
int two = tx.tokenWrite().relationshipTypeGetOrCreateForName( "TWO" );
long newRelationship = write.relationshipCreate( start, two, write.nodeCreate() );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
assertFalse( node.isDense() );
node.relationships( group );
while ( group.next() )
{
int t = group.type();
if ( t == one )
{
assertEquals( 1, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, existingRelationship );
}
else if ( t == two )
{
assertEquals( 1, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, newRelationship );
}
else
{
fail( t + " is not the type you're looking for " );
}
}
}
}
}
@Test
public void groupCursorShouldSeeBothOldAndNewRelationshipsFromDenseNode() throws Exception
{
long start;
long existingRelationship;
int one, bulk;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
start = write.nodeCreate();
one = tx.tokenWrite().relationshipTypeGetOrCreateForName( "ONE" );
existingRelationship = write.relationshipCreate( start, one, write.nodeCreate() );
bulk = tx.tokenWrite().relationshipTypeGetOrCreateForName( "BULK" );
for ( int i = 0; i < 100; i++ )
{
write.relationshipCreate( start, bulk, write.nodeCreate() );
}
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
int two = tx.tokenWrite().relationshipTypeGetOrCreateForName( "TWO" );
long newRelationship = write.relationshipCreate( start, two, write.nodeCreate() );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
assertTrue( node.isDense() );
node.relationships( group );
while ( group.next() )
{
int t = group.type();
if ( t == one )
{
assertEquals( 1, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, existingRelationship );
}
else if ( t == two )
{
assertEquals( 1, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, newRelationship );
}
else if ( t == bulk )
{
assertEquals( 100, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
}
else
{
fail( t + " is not the type you're looking for " );
}
}
}
}
}
@Test
public void groupCursorShouldNewRelationshipBetweenAlreadyConnectedSparseNodes() throws Exception
{
long start;
long end;
long existingRelationship;
int type;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
start = write.nodeCreate();
end = write.nodeCreate();
type = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
existingRelationship = write.relationshipCreate( start, type, end );
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
long newRelationship = write.relationshipCreate( start, type, write.nodeCreate() );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
assertFalse( node.isDense() );
node.relationships( group );
assertTrue( group.next() );
assertEquals( type, group.type() );
assertEquals( 2, group.outgoingCount() );
assertEquals( 0, group.incomingCount() );
assertEquals( 0, group.loopCount() );
assertRelationships( OUT, group, traversal, newRelationship, existingRelationship );
assertFalse( group.next() );
}
}
}
@Test
public void groupCursorShouldNewRelationshipBetweenAlreadyConnectedDenseNodes() throws Exception
{
long start;
long end;
long existingRelationship;
int type, bulk;
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
start = write.nodeCreate();
end = write.nodeCreate();
type = tx.tokenWrite().relationshipTypeGetOrCreateForName( "R" );
existingRelationship = write.relationshipCreate( start, type, end );
bulk = tx.tokenWrite().relationshipTypeGetOrCreateForName( "BULK" );
for ( int i = 0; i < 100; i++ )
{
write.relationshipCreate( start, bulk, write.nodeCreate() );
}
tx.success();
}
try ( Transaction tx = beginTransaction() )
{
Write write = tx.dataWrite();
long newRelationship = write.relationshipCreate( start, type, write.nodeCreate() );
try ( NodeCursor node = tx.cursors().allocateNodeCursor();
RelationshipTraversalCursor traversal = tx.cursors().allocateRelationshipTraversalCursor();
RelationshipGroupCursor group = tx.cursors().allocateRelationshipGroupCursor() )
{
Read read = tx.dataRead();
read.singleNode( start, node );
assertTrue( node.next() );
assertTrue( node.isDense() );
node.relationships( group );
while ( group.next() )