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DisconnectTests.java
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DisconnectTests.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.artemis.tests.integration.mqtt5.spec.controlpackets;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import io.netty.handler.codec.mqtt.MqttMessageType;
import io.netty.handler.codec.mqtt.MqttProperties;
import io.netty.handler.codec.mqtt.MqttReasonCodeAndPropertiesVariableHeader;
import org.apache.activemq.artemis.core.protocol.mqtt.MQTTInterceptor;
import org.apache.activemq.artemis.core.protocol.mqtt.MQTTReasonCodes;
import org.apache.activemq.artemis.tests.integration.mqtt5.MQTT5TestSupport;
import org.apache.activemq.artemis.tests.util.RandomUtil;
import org.eclipse.paho.mqttv5.client.MqttClient;
import org.eclipse.paho.mqttv5.client.MqttConnectionOptions;
import org.eclipse.paho.mqttv5.client.MqttConnectionOptionsBuilder;
import org.eclipse.paho.mqttv5.common.MqttMessage;
import org.junit.Test;
/**
* Fulfilled by client or Netty codec (i.e. not tested here):
*
* [MQTT-3.14.1-1] The Client or Server MUST validate that reserved bits are set to 0. If they are not zero it sends a DISCONNECT packet with a Reason code of 0x81 (Malformed Packet).
* [MQTT-3.14.4-1] After sending a DISCONNECT packet the sender MUST NOT send any more MQTT Control Packets on that Network Connection.
* [MQTT-3.14.4-2] After sending a DISCONNECT packet the sender MUST close the Network Connection.
*
*
* Not sure how to test this since it's a negative:
*
* [MQTT-3.14.0-1] A Server MUST NOT send a DISCONNECT until after it has sent a CONNACK with Reason Code of less than 0x80.
*
*
* The broker doesn't send any "Reason String" or "User Property" in the DISCONNECT packet for any reason. Therefore, these are not tested here:
*
* [MQTT-3.14.2-3] The sender MUST NOT use this Property if it would increase the size of the DISCONNECT packet beyond the Maximum Packet Size specified by the receiver.
* [MQTT-3.14.2-4] The sender MUST NOT send this property if it would increase the size of the DISCONNECT packet beyond the Maximum Packet Size specified by the receiver.
*/
public class DisconnectTests extends MQTT5TestSupport {
/*
* [MQTT-3.14.2-1] The Client or Server sending the DISCONNECT packet MUST use one of the DISCONNECT Reason Codes.
*
* [MQTT-3.14.2-2] The Session Expiry Interval MUST NOT be sent on a DISCONNECT by the Server.
*
* Currently the only way to trigger a DISCONNECT from the broker is to "take over" an existing session at which
* point the broker will disconnect the existing session.
*/
@Test(timeout = DEFAULT_TIMEOUT)
public void testDisconnectReasonCode() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
MQTTInterceptor outgoingInterceptor = (packet, connection) -> {
if (packet.fixedHeader().messageType() == MqttMessageType.DISCONNECT) {
System.out.println(packet);
assertEquals(MQTTReasonCodes.SESSION_TAKEN_OVER, ((MqttReasonCodeAndPropertiesVariableHeader)packet.variableHeader()).reasonCode());
assertNull(((MqttReasonCodeAndPropertiesVariableHeader)packet.variableHeader()).properties().getProperty(MqttProperties.MqttPropertyType.SESSION_EXPIRY_INTERVAL.value()));
latch.countDown();
}
return true;
};
server.getRemotingService().addOutgoingInterceptor(outgoingInterceptor);
MqttClient publisher1 = createPahoClient("publisher");
publisher1.connect();
MqttClient publisher2 = createPahoClient("publisher");
publisher2.connect();
assertTrue(latch.await(2, TimeUnit.SECONDS));
publisher2.disconnect();
publisher2.close();
}
/*
* [MQTT-3.14.4-3] On receipt of DISCONNECT with a Reason Code of 0x00 (Success) the Server MUST discard any Will
* Message associated with the current Connection without publishing it.
*/
@Test(timeout = DEFAULT_TIMEOUT)
public void testWillMessageRemovedOnDisconnect() throws Exception {
final String CLIENT_ID = org.apache.activemq.artemis.tests.util.RandomUtil.randomString();
final byte[] WILL = RandomUtil.randomBytes();
MqttClient client = createPahoClient(CLIENT_ID);
MqttConnectionOptions options = new MqttConnectionOptionsBuilder()
.will("/topic/foo", new MqttMessage(WILL))
.build();
client.connect(options);
assertNotNull(getSessionStates().get(CLIENT_ID).getWillMessage());
client.disconnect();
// normal disconnect removes all session state if session expiration interval is 0
assertNull(getSessionStates().get(CLIENT_ID));
client.close();
}
}