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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.openflow.controller.impl;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Future;
import org.junit.Before;
import org.junit.Test;
import org.onosproject.openflow.ExecutorServiceAdapter;
import org.onosproject.openflow.MockOfFeaturesReply;
import org.onosproject.openflow.MockOfPacketIn;
import org.onosproject.openflow.MockOfPortStatus;
import org.onosproject.openflow.OfMessageAdapter;
import org.onosproject.openflow.OpenFlowSwitchListenerAdapter;
import org.onosproject.openflow.OpenflowSwitchDriverAdapter;
import org.onosproject.openflow.controller.Dpid;
import org.onosproject.openflow.controller.OpenFlowPacketContext;
import org.onosproject.openflow.controller.OpenFlowSwitch;
import org.onosproject.openflow.controller.PacketListener;
import org.projectfloodlight.openflow.protocol.OFMessage;
import org.projectfloodlight.openflow.protocol.OFType;
import static junit.framework.TestCase.fail;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.is;
/**
* Tests for packet processing in the open flow controller impl class.
*/
public class OpenFlowControllerImplPacketsTest {
OpenFlowControllerImpl controller;
OpenFlowControllerImpl.OpenFlowSwitchAgent agent;
Dpid dpid1;
OpenFlowSwitch switch1;
OpenFlowSwitchListenerAdapter switchListener;
TestPacketListener packetListener;
TestExecutorService executorService;
/**
* Mock packet listener that accumulates packets.
*/
class TestPacketListener implements PacketListener {
List<OpenFlowPacketContext> contexts = new ArrayList<>();
@Override
public void handlePacket(OpenFlowPacketContext pktCtx) {
contexts.add(pktCtx);
}
List<OpenFlowPacketContext> contexts() {
return contexts;
}
}
/**
* Mock executor service that tracks submits.
*/
static class TestExecutorService extends ExecutorServiceAdapter {
private List<OFMessage> submittedMessages = new ArrayList<>();
List<OFMessage> submittedMessages() {
return submittedMessages;
}
@Override
public Future<?> submit(Runnable task) {
OpenFlowControllerImpl.OFMessageHandler handler =
(OpenFlowControllerImpl.OFMessageHandler) task;
submittedMessages.add(handler.msg);
return null;
}
}
/**
* Sets up switches to use as data, mocks and launches a controller instance.
*/
@Before
public void setUp() {
try {
switch1 = new OpenflowSwitchDriverAdapter();
dpid1 = Dpid.dpid(new URI("of:0000000000000111"));
} catch (URISyntaxException ex) {
// Does not happen
fail();
}
controller = new OpenFlowControllerImpl();
agent = controller.agent;
switchListener = new OpenFlowSwitchListenerAdapter();
controller.addListener(switchListener);
packetListener = new TestPacketListener();
controller.addPacketListener(100, packetListener);
executorService = new TestExecutorService();
controller.executorMsgs = executorService;
}
/**
* Tests a port status operation.
*/
@Test
public void testPortStatus() {
OFMessage portStatusPacket = new MockOfPortStatus();
controller.processPacket(dpid1, portStatusPacket);
assertThat(switchListener.portChangedDpids().size(), is(1));
assertThat(switchListener.portChangedDpids().containsKey(dpid1),
is(true));
assertThat(switchListener.portChangedDpids().get(dpid1),
equalTo(portStatusPacket));
}
/**
* Tests a features reply operation.
*/
@Test
public void testFeaturesReply() {
OFMessage ofFeaturesReplyPacket = new MockOfFeaturesReply();
controller.processPacket(dpid1, ofFeaturesReplyPacket);
assertThat(switchListener.changedDpids(), hasSize(1));
assertThat(switchListener.changedDpids().get(0),
equalTo(dpid1));
}
/**
* Tests a packet in operation.
*/
@Test
public void testPacketIn() {
agent.addConnectedSwitch(dpid1, switch1);
OFMessage packetInPacket = new MockOfPacketIn();
controller.processPacket(dpid1, packetInPacket);
assertThat(packetListener.contexts(), hasSize(1));
}
/**
* Tests an error operation.
*/
@Test
public void testError() {
agent.addConnectedSwitch(dpid1, switch1);
OfMessageAdapter errorPacket = new OfMessageAdapter(OFType.ERROR);
controller.processPacket(dpid1, errorPacket);
assertThat(executorService.submittedMessages(), hasSize(1));
assertThat(executorService.submittedMessages().get(0), is(errorPacket));
}
}
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