Re: [Neo4j] Using in-memory DB for unit tests
Oh man do I feel stupid - thank you both. The IMDB tutorial was so good I
created a project without fully reading the API docs.
Regards,
Jon
On Tue, Nov 29, 2011 at 10:54 PM, Michael Hunger
michael.hun...@neotechnology.com wrote:
you can also use
rel.getOtherNode(startNode)
Michael
mobile mail please excuse brevity and typos
Am 30.11.2011 um 06:03 schrieb Jim Webber j...@neotechnology.com:
Hi Jon,
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming()
{
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty( asn, 123 );
as.createRelationshipTo( network,
DynamicRelationshipType.withName( AS ) );
System.out.println( network.getSingleRelationship(
IPAddressRelationshipType.AS, Direction.INCOMING )
.getStartNode()
// It's the start node of the incoming relationship,
which is the same as the end node of the outgoing relationship
.getProperty( asn ) );
}
You got the start and end node wrong - I changed that and your test ran
just fine.
Good luck with your first project - I hope it's as enjoyable as my first
Neo4j project :-)
Jim
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[Neo4j] Using in-memory DB for unit tests
Greetings - I have started my first project using neo4j, and am having some
trouble with unit tests. I must be missing something, but when I retrieve
a node using an incoming direction, I am unable to get properties from that
node.The first test works fine, the second one fails with a
NotFoundException on the property asn. (although it does find the
end-node with no trouble) Can anyone point out what I am doing wrong?
Thanks,
Jon
/**
* $Id$
*/
package com.mcafee.tsw.webgraph;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.neo4j.graphdb.Direction;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.RelationshipType;
import org.neo4j.graphdb.Transaction;
import org.neo4j.test.ImpermanentGraphDatabase;
/**
*/
public class TestMe {
private GraphDatabaseService svc;
private Transaction tx;
/**
* @throws java.lang.Exception
*/
@Before
public void initDB() throws Exception {
svc = new ImpermanentGraphDatabase();
tx = svc.beginTx();
}
/**
* @throws java.lang.Exception
*/
@After
public void closeDB() throws Exception {
tx.failure();
tx.finish();
svc.shutdown();
svc = null;
}
// This one works.
@Test
public void testOutgoing() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
network.createRelationshipTo(as, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.OUTGOING)
.getEndNode().getProperty(asn));
}
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
as.createRelationshipTo(network, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.INCOMING)
.getEndNode().getProperty(asn));
}
}
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Re: [Neo4j] Using in-memory DB for unit tests
Why call tx.failure in close db?
On Wednesday, November 30, 2011, Jon Walton jon.w.wal...@gmail.com wrote:
Greetings - I have started my first project using neo4j, and am having
some
trouble with unit tests. I must be missing something, but when I
retrieve
a node using an incoming direction, I am unable to get properties from
that
node.The first test works fine, the second one fails with a
NotFoundException on the property asn. (although it does find the
end-node with no trouble) Can anyone point out what I am doing wrong?
Thanks,
Jon
/**
* $Id$
*/
package com.mcafee.tsw.webgraph;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.neo4j.graphdb.Direction;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.RelationshipType;
import org.neo4j.graphdb.Transaction;
import org.neo4j.test.ImpermanentGraphDatabase;
/**
*/
public class TestMe {
private GraphDatabaseService svc;
private Transaction tx;
/**
* @throws java.lang.Exception
*/
@Before
public void initDB() throws Exception {
svc = new ImpermanentGraphDatabase();
tx = svc.beginTx();
}
/**
* @throws java.lang.Exception
*/
@After
public void closeDB() throws Exception {
tx.failure();
tx.finish();
svc.shutdown();
svc = null;
}
// This one works.
@Test
public void testOutgoing() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
network.createRelationshipTo(as, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.OUTGOING)
.getEndNode().getProperty(asn));
}
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
as.createRelationshipTo(network, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.INCOMING)
.getEndNode().getProperty(asn));
}
}
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--
Best wishes,
Linan Wang
Architect, Programmer, PhD
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Re: [Neo4j] Using in-memory DB for unit tests
On Tue, Nov 29, 2011 at 7:20 PM, Linan Wang tali.w...@gmail.com wrote:
Why call tx.failure in close db?
To assure a pristine DB between unit tests, as suggested here:
http://wiki.neo4j.org/content/Testing_with_Neo4j
I don't think this is the cause of my problem as the exception gets thrown
before the call to roll back the TX.
On Wednesday, November 30, 2011, Jon Walton jon.w.wal...@gmail.com
wrote:
Greetings - I have started my first project using neo4j, and am having
some
trouble with unit tests. I must be missing something, but when I
retrieve
a node using an incoming direction, I am unable to get properties from
that
node.The first test works fine, the second one fails with a
NotFoundException on the property asn. (although it does find the
end-node with no trouble) Can anyone point out what I am doing wrong?
Thanks,
Jon
/**
* $Id$
*/
package com.mcafee.tsw.webgraph;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.neo4j.graphdb.Direction;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.RelationshipType;
import org.neo4j.graphdb.Transaction;
import org.neo4j.test.ImpermanentGraphDatabase;
/**
*/
public class TestMe {
private GraphDatabaseService svc;
private Transaction tx;
/**
* @throws java.lang.Exception
*/
@Before
public void initDB() throws Exception {
svc = new ImpermanentGraphDatabase();
tx = svc.beginTx();
}
/**
* @throws java.lang.Exception
*/
@After
public void closeDB() throws Exception {
tx.failure();
tx.finish();
svc.shutdown();
svc = null;
}
// This one works.
@Test
public void testOutgoing() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
network.createRelationshipTo(as, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.OUTGOING)
.getEndNode().getProperty(asn));
}
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming() {
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty(asn, 123);
as.createRelationshipTo(network, IPAddressRelationshipType.AS);
System.out.println(network.getSingleRelationship(IPAddressRelationshipType.AS,
Direction.INCOMING)
.getEndNode().getProperty(asn));
}
}
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--
Best wishes,
Linan Wang
Architect, Programmer, PhD
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Re: [Neo4j] Using in-memory DB for unit tests
Hi Jon,
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming()
{
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty( asn, 123 );
as.createRelationshipTo( network, DynamicRelationshipType.withName(
AS ) );
System.out.println( network.getSingleRelationship(
IPAddressRelationshipType.AS, Direction.INCOMING )
.getStartNode()
// It's the start node of the incoming relationship, which is
the same as the end node of the outgoing relationship
.getProperty( asn ) );
}
You got the start and end node wrong - I changed that and your test ran just
fine.
Good luck with your first project - I hope it's as enjoyable as my first Neo4j
project :-)
Jim
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Re: [Neo4j] Using in-memory DB for unit tests
you can also use
rel.getOtherNode(startNode)
Michael
mobile mail please excuse brevity and typos
Am 30.11.2011 um 06:03 schrieb Jim Webber j...@neotechnology.com:
Hi Jon,
// This one results in a not found exception on the 'asn' property.
@Test
public void testIncoming()
{
Node network = svc.createNode();
Node as = svc.createNode();
as.setProperty( asn, 123 );
as.createRelationshipTo( network, DynamicRelationshipType.withName(
AS ) );
System.out.println( network.getSingleRelationship(
IPAddressRelationshipType.AS, Direction.INCOMING )
.getStartNode()
// It's the start node of the incoming relationship, which is
the same as the end node of the outgoing relationship
.getProperty( asn ) );
}
You got the start and end node wrong - I changed that and your test ran just
fine.
Good luck with your first project - I hope it's as enjoyable as my first
Neo4j project :-)
Jim
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