fix for testcase: set engine inertia

VectoCore/VectoCoreTest/Models/SimulationComponent/ATGearboxTest.cs

@@ -81,7 +81,7 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 			var vehicleContainer = new MockVehicleContainer(); //(ExecutionMode.Engineering);
 			var engineData = MockSimulationDataFactory.CreateEngineDataFromFile(EngineDataFile, gearboxData.Gears.Count);
 			vehicleContainer.Engine = new CombustionEngine(vehicleContainer, engineData);
-			var runData = new VectoRunData() { GearboxData = gearboxData };
+			var runData = new VectoRunData() { GearboxData = gearboxData, EngineData = new CombustionEngineData() {Inertia = 0.SI<KilogramSquareMeter>()} };
 			var gearbox = new ATGearbox(vehicleContainer, new ATShiftStrategy(gearboxData, vehicleContainer), runData);
 
 			vehicleContainer.VehicleSpeed = vehicleSpeed.KMPHtoMeterPerSecond();