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/*
This file is part of GNUnet.
Copyright (C) 2012, 2013 Christian Grothoff (and other contributing authors)
GNUnet 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, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
package org.gnunet.consensus;
import org.gnunet.testbed.*;
import org.gnunet.testing.TestingFixture;
import org.gnunet.util.*;
import org.junit.Assert;
import org.junit.Test;
import java.util.HashSet;
/**
* Test for consensus with multiple peers using testbed.
*/
public class ConsensusTestbedTest extends TestingFixture {
@Test
public void test_consensus_testbed_2peers() {
final Wrapper<Boolean> done = new Wrapper<Boolean>(false);
new Program() {
ControllerProc cp;
Host h;
Controller c;
Controller.Peer[] peers = new Controller.Peer[2];
Consensus[] consensi = new Consensus[2];
PeerIdentity[] identities = new PeerIdentity[2];
@SuppressWarnings("unchecked")
HashSet<String>[] received = new HashSet[]{new HashSet(), new HashSet()};
int peersCreated;
int peersInfoDone;
int peersStarted;
int peersConcludeDone;
HashCode sessionId = HashCode.random();
AbsoluteTime start;
AbsoluteTime deadline;
class MyConsensusCallback implements ConsensusCallback {
int n;
public MyConsensusCallback(int n) {
this.n = n;
}
@Override
public void onElement(ConsensusElement element) {
received[n].add(new String(element.data));
}
@Override
public void onDone() {
System.out.println("peer " + n + " conclude done");
peersConcludeDone++;
if (peersConcludeDone == 2) {
Assert.assertEquals(4, received[0].size());
Assert.assertEquals(4, received[1].size());
done.set(true);
consensi[0].destroy();
consensi[1].destroy();
c.disconnect();
cp.stop();
}
}
}
class ConsensusAdapter implements ServiceAdapter {
int n;
public ConsensusAdapter(int n) {
this.n = n;
}
@Override
public void onConnect(Configuration cfg) {
System.out.println("connecting to consensus");
consensi[n] = new Consensus(cfg, identities, sessionId, start, deadline);
consensi[n].insertElement(new ConsensusElement("foo".getBytes(), 0));
consensi[n].insertElement(new ConsensusElement("bar".getBytes(), 0));
consensi[n].insertElement(new ConsensusElement(("num" + n).getBytes(), 0));
consensi[n].conclude(new MyConsensusCallback(n));
}
@Override
public void onDisconnect() {
// fixme: why??
consensi[n].destroy();
consensi[n] = null;
}
}
class ConnectedHandler implements OperationCompletionCallback {
@Override
public void onCompletion() {
peers[0].getServiceConnection("consensus", new ConsensusAdapter(0));
peers[1].getServiceConnection("consensus", new ConsensusAdapter(1));
}
@Override
public void onError(String emsg) {
Assert.fail(emsg);
}
}
class InfoCallback implements PeerInformationCallback {
int n;
public InfoCallback(int n) {
this.n = n;
}
@Override
public void onSuccess(PeerIdentity peerIdentity, Configuration configuration) {
peersInfoDone++;
identities[n] = peerIdentity;
if (peersInfoDone == 2) {
peers[0].connectOverlay(peers[1], new ConnectedHandler());
}
}
}
class ChurnStart implements PeerChurnCallback {
@Override
public void onChurnSuccess() {
peersStarted++;
if (peersStarted == 2) {
peers[0].requestInformation(new InfoCallback(0));
peers[1].requestInformation(new InfoCallback(1));
}
}
@Override
public void onChurnError(String emsg) {
Assert.fail(emsg);
}
}
class PCB implements PeerCreateCallback {
int n;
public PCB(int n) {
this.n = n;
}
@Override
public void onPeerCreated(Controller.Peer peer) {
System.out.println("peer created!");
peers[n] = peer;
peersCreated++;
if (peersCreated == 2) {
peers[0].start(new ChurnStart());
peers[1].start(new ChurnStart());
}
}
@Override
public void onError(String errorMessage) {
Assert.fail();
}
}
@Override
public void run() {
start = AbsoluteTime.now();
deadline = start.add(RelativeTime.SECOND.multiply(10));
// use local peer's config, does that really make sense?
h = new Host(null, null, getConfiguration(), 0);
cp = new ControllerProc();
cp.start("127.0.0.1", h, new ControllerStatusCallback() {
@Override
public void onStartupSuccess(Configuration cfg) {
System.out.println("startup success");
c = new Controller(h);
// FIXME: use config from resource
Configuration peerCfg = getConfiguration().clone();
peerCfg.setValueString("arm", "DEFAULTSERVICES", "set consensus");
c.createPeer(h, peerCfg, new PCB(0));
c.createPeer(h, peerCfg, new PCB(1));
}
@Override
public void onStartupFailure() {
Assert.fail();
}
});
}
}.start("-LDEBUG");
Assert.assertTrue(done.get());
}
}
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