Index: unittests/tst_messaging.cpp
===================================================================
diff -u -rf3b164487b1648637f5dd9a306cb6ade763d27c9 -r846a9ebc350e33be4affab3cc4c136248900015d
--- unittests/tst_messaging.cpp	(.../tst_messaging.cpp)	(revision f3b164487b1648637f5dd9a306cb6ade763d27c9)
+++ unittests/tst_messaging.cpp	(.../tst_messaging.cpp)	(revision 846a9ebc350e33be4affab3cc4c136248900015d)
@@ -6,8 +6,8 @@
  * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
  *
  * \file tst_messaging.cpp
- * \author (last) Peter Lucia
- * \date (last) 06-Jul-2020
+ * \author (last) Behrouz NematiPour
+ * \date (last) 23-Aug-2020
  * \author (original) Behrouz NematiPour
  * \date (original) 21-Apr-2020
  *
@@ -781,13 +781,27 @@
 }
 
 /*!
- * \brief   tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustUltrafiltrationConfirmReq
- * \details Tests MessageInterpreter interpretMessage to handle AdjustUltrafiltrationConfirmReq message type
+ * \brief   tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustSalineReq
+ * \details Tests MessageInterpreter interpretMessage to handle ID_AdjustSalineReq message type
  *          if data is empty (count==0)
  */
-void tst_messaging::tst_MessageInterpreter_interpretMessage_canbusFaultCountData()
+void tst_messaging::tst_MessageInterpreter_interpretMessage_AdjustSalineReq()
 {
     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_AdjustSalineReq, {}, payload));
+    QVERIFY(payload.isEmpty());
+}
+
+/*!
+ * \brief   tst_messaging::tst_MessageInterpreter_interpretMessage_CANBusFaultCount
+ * \details Tests MessageInterpreter interpretMessage to handle ID_CANBusFaultCount message type
+ *          if data is empty (count==0)
+ */
+void tst_messaging::tst_MessageInterpreter_interpretMessage_CANBusFaultCount()
+{
+    Can::MessageInterpreter iMsg;
     Can::Message msg;
     msg.actionId = Gui::GuiActionType::ID_CANBusFaultCount;
     msg.data = {};
@@ -958,4 +972,3 @@
     Can::Sequence seq = 1;
     dMsg.actionTransmit(Gui::GuiActionType::ID_KeepAlive, data, seq);
 }
-