Index: unittests/tst_logging.cpp
===================================================================
diff -u -r69fb006f0f7ecea062bd3732d37c665906c0bbc9 -rab540f19f0e4ca657d5bf5844560392ccf8456d9
--- unittests/tst_logging.cpp	(.../tst_logging.cpp)	(revision 69fb006f0f7ecea062bd3732d37c665906c0bbc9)
+++ unittests/tst_logging.cpp	(.../tst_logging.cpp)	(revision ab540f19f0e4ca657d5bf5844560392ccf8456d9)
@@ -115,6 +115,22 @@
     QCOMPARE(mContent, "");
 }
 
+void tst_logging::logError_Unhandled_TreatmentState()
+{
+    gDisableHunhandledReport = false;
+    Can::MessageInterpreter iMsg;
+    Can::Message msg;
+    msg.actionId = Gui::GuiActionType::TreatmentState;
+    msg.data = {};
+    QVariantList vData {};
+    QVERIFY(iMsg.interpretMessage_HD(msg, vData));
+    QString mContent;
+    FileHandler::read(_Logger._logFileName, mContent);
+    QStringList lines = mContent.split("\n");
+    QVERIFY(lines.count());
+    QCOMPARE(lines.first(), "Error:  , Unhandled Message ID (HD)");
+}
+
 void tst_logging::setLogPath_F()
 {
     _Logger._dir = "/";