Fix unit tests logic

common/transport/mqtt/src/test/java/org/thingsboard/server/transport/mqtt/MqttTransportHandlerTest.java

@@ -116,7 +116,7 @@ public class MqttTransportHandlerTest {
         MqttConnectMessage msg = getMqttConnectMessage();
         willDoNothing().given(handler).processConnect(ctx, msg);
 
-        handler.processMqttMsg(ctx, msg);
+        handler.channelRead(ctx, msg);
 
         assertThat(handler.address, is(IP_ADDR));
         assertThat(handler.deviceSessionCtx.getChannel(), is(ctx));
@@ -152,7 +152,7 @@ public class MqttTransportHandlerTest {
 
         List<MqttPublishMessage> messages = Stream.generate(this::getMqttPublishMessage).limit(MSG_QUEUE_LIMIT).collect(Collectors.toList());
 
-        messages.forEach((msg) -> handler.processMqttMsg(ctx, msg));
+        messages.forEach((msg) -> handler.channelRead(ctx, msg));
 
         assertThat(handler.address, is(IP_ADDR));
         assertThat(handler.deviceSessionCtx.getChannel(), is(ctx));