Index: unittests/tst_messaging.cpp
===================================================================
diff -u -r911882aaf10ee02ef646013914a2ddd6225224ca -r7777127f3b60d5f884cd07adc9d586353d914f69
--- unittests/tst_messaging.cpp	(.../tst_messaging.cpp)	(revision 911882aaf10ee02ef646013914a2ddd6225224ca)
+++ unittests/tst_messaging.cpp	(.../tst_messaging.cpp)	(revision 7777127f3b60d5f884cd07adc9d586353d914f69)
@@ -486,6 +486,20 @@
 }
 
 /*!
+ * \brief   tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustUltrafiltrationInitReq
+ * \details Tests MessageInterpreter interpretMessage to handle AdjustUltrafiltrationInitReq message type
+ *          if data is empty (count==0)
+ */
+void tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustUltrafiltrationInitReq()
+{
+    Can::MessageInterpreter iMsg;
+    QByteArray payload;
+    // if the payload is empty the len is not valid and should return false and empty payload
+    QVERIFY(! iMsg.interpretMessage(Gui::GuiActionType::ID_AdjustUltrafiltrationInitReq, {}, payload));
+    QVERIFY(payload.isEmpty());
+}
+
+/*!
  * \brief   tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustUltrafiltrationStateReq
  * \details Tests MessageInterpreter interpretMessage to handle AdjustUltrafiltrationStateReq message type
  *          if data is empty (count==0)