/**
* Copyright (c) 2012, Oliver Kleine, Institute of Telematics, University of Luebeck
* All rights reserved
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source messageCode must retain the above copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
*
* - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package de.uniluebeck.itm.ncoap.communication;
import de.uniluebeck.itm.ncoap.application.client.CoapClientApplication;
import de.uniluebeck.itm.ncoap.communication.dispatching.client.Token;
import de.uniluebeck.itm.ncoap.endpoints.DummyEndpoint;
import de.uniluebeck.itm.ncoap.endpoints.client.ClientTestCallback;
import de.uniluebeck.itm.ncoap.message.options.ContentFormat;
import de.uniluebeck.itm.ncoap.message.*;
import de.uniluebeck.itm.ncoap.message.MessageCode;
import java.net.InetSocketAddress;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.junit.Test;
import java.net.URI;
import java.util.SortedMap;
import static junit.framework.Assert.*;
/**
* Tests to verify the client functionality related to piggy-backed responses.
*
* @author Oliver Kleine, Stefan Hueske
*/
public class ServerSendsPiggyBackedResponseTest extends AbstractCoapCommunicationTest {
private static final String PAYLOAD = "Some arbitrary content!";
private static CoapClientApplication client;
private static ClientTestCallback callback;
private static CoapRequest coapRequest;
private static DummyEndpoint endpoint;
private static InetSocketAddress endpointSocket;
@Override
public void setupComponents() throws Exception {
//Create endpoint
endpoint = new DummyEndpoint();
endpointSocket = new InetSocketAddress("localhost", endpoint.getPort());
//Create client and callback
client = new CoapClientApplication();
callback = new ClientTestCallback();
URI targetUri = new URI("coap://localhost:" + endpoint.getPort() + "/");
coapRequest = new CoapRequest(MessageType.Name.CON, MessageCode.Name.GET, targetUri);
}
@Override
public void shutdownComponents() throws Exception {
client.shutdown();
endpoint.shutdown();
}
@Override
public void setupLogging() throws Exception {
Logger.getLogger("de.uniluebeck.itm.ncoap.endpoints.client.ClientTestCallback")
.setLevel(Level.INFO);
Logger.getLogger("de.uniluebeck.itm.ncoap.endpoints.DummyEndpoint")
.setLevel(Level.INFO);
Logger.getLogger("de.uniluebeck.itm.ncoap.communication.reliability.client")
.setLevel(Level.INFO);
}
@Override
public void createTestScenario() throws Exception {
/*
testClient testEndpoint DESCRIPTION
| |
(1) |--------GET----------------->| client sends GET-Request to testEndpoint
| |
(2) |<-------ACK-RESPONSE---------| testEndpoint responds
| |
(3) |<-------ACK-RESPONSE---------| testEndpoint sends the response again,
| | nothing should happen here if the client
| | removed the callback as expected
*/
//write request
client.sendCoapRequest(coapRequest, callback, endpointSocket);
//Wait some time
Thread.sleep(300);
//Get message ID and token from received message
int messageID = endpoint.getReceivedCoapMessages().values().iterator().next().getMessageID();
Token token = endpoint.getReceivedCoapMessages().values().iterator().next().getToken();
//write response #1
CoapResponse response = new CoapResponse(MessageType.Name.ACK, MessageCode.Name.CONTENT_205);
response.setMessageID(messageID);
response.setToken(token);
response.setContent(PAYLOAD.getBytes(CoapMessage.CHARSET), ContentFormat.TEXT_PLAIN_UTF8);
endpoint.writeMessage(response, new InetSocketAddress("localhost", client.getPort()));
//Wait some time
Thread.sleep(300);
//write response #2 (should be ignored by the client!)
endpoint.writeMessage(response, new InetSocketAddress("localhost", client.getPort()));
//Wait some time
Thread.sleep(300);
}
@Test
public void testReceivedRequestEqualsSentRequest() {
SortedMap<Long, CoapMessage> receivedRequests = endpoint.getReceivedCoapMessages();
String message = "Written and received request do not equal";
assertEquals(message, coapRequest, receivedRequests.get(receivedRequests.firstKey()));
}
@Test
public void testReceiverReceivedOnlyOneRequest() {
String message = "Receiver received more than one message";
assertEquals(message, 1, endpoint.getReceivedCoapMessages().size());
}
@Test
public void testClientCallbackInvokedOnce() {
String message = "Client callback was invoked less or more than once";
assertEquals(message, 1, callback.getCoapResponses().size());
}
}