Ref T717, simulator "is test" conditions where required

src/plugins/simulator/flightgear/simulatorflightgear.cpp

@@ -480,7 +480,7 @@ namespace BlackSimPlugin
 
             // crosscheck if still a valid aircraft
             // it can happen that aircraft has been removed, timed out ...
-            if (!this->isAircraftInRange(newRemoteAircraft.getCallsign()))
+            if (!this->isAircraftInRangeOrTestMode(newRemoteAircraft.getCallsign()))
             {
                 // next cycle will be called by callbacks or timer
                 CLogMessage(this).warning(u"Aircraft '%1' no longer in range, will not add") << newRemoteAircraft.getCallsign();

src/plugins/simulator/fsxcommon/simulatorfsxcommon.cpp

@@ -1175,7 +1175,7 @@ namespace BlackSimPlugin
         void CSimulatorFsxCommon::timerBasedObjectAddOrRemove()
         {
             this->addPendingAircraft(AddByTimer);
-            this->physicallyRemoveAircraftNotInProvider();
+            if (!this->isTestMode()) { this->physicallyRemoveAircraftNotInProvider(); }
         }
 
         void CSimulatorFsxCommon::addPendingAircraftAfterAdded()

src/plugins/simulator/xplane/simulatorxplane.cpp

@@ -325,6 +325,7 @@ namespace BlackSimPlugin
 
                 // remove the invalid ones
                 int i = 0;
+                if (this->isTestMode()) { invalid.clear(); } // skip this in test mode
                 for (const CCallsign &cs : invalid)
                 {
                     this->triggerRemoveAircraft(cs, ++i * 100);