Index: unittests/tst_acknow.cpp
===================================================================
diff -u -r805119c460b4a266d6401c8705f4427e7fbe270f -r634824d6fce314971aa236e508024bd154562c9d
--- unittests/tst_acknow.cpp	(.../tst_acknow.cpp)	(revision 805119c460b4a266d6401c8705f4427e7fbe270f)
+++ unittests/tst_acknow.cpp	(.../tst_acknow.cpp)	(revision 634824d6fce314971aa236e508024bd154562c9d)
@@ -126,6 +126,21 @@
     _MessageDispatcher._needsAcknow.removeOne(Gui::GuiActionType::KeepAlive);
 }
 
+/*!
+ * \brief   tst_acknow::tst_AcknowModel_onAcknowReceive_Incorrect
+ * \details Tries to remove a seq from acknow model which we don't expect
+ * (there was no message send with this seq which required qcknow)
+ * and the seq should not exists before and after removal
+ * this is a test for qt hash test used for acknow model
+ * \param   vSequence
+ */
+void tst_acknow::tst_AcknowModel_onAcknowReceive_Incorrect()
+{
+    QVERIFY( ! _MessageAcknowModel._acknowList.contains(9999));
+    _MessageAcknowModel.onAcknowReceive(9999);
+    QVERIFY( ! _MessageAcknowModel._acknowList.contains(9999));
+}
+
 void tst_acknow::cleanupTestCase()
 {
     _CanInterface.quitDevice();