public void TestRetrieveRepairListByVehicleId() { //arrange //create new object testVehicle = new Vehicle(); testVehicle.Active = true; testVehicle.CheckedOut = false; testVehicle.Color = "White"; testVehicle.Make = "Test Make"; testVehicle.Model = "Test Model"; testVehicle.Mileage = 123456; testVehicle.VehicleTypeID = "Truck"; testVehicle.VIN = "123TEST456"; testVehicle.Year = "2000"; //set expected result variable List <Repair> repairListbyVehicleId; //act //execute method test, set to variable to test testVehicleId = _vehicleManager.CreateVehicle(testVehicle); repairListbyVehicleId = _repairManager.RetreiveAllRepairsForVehicle(testVehicleId); //assert //compare result to expected result Assert.IsTrue(repairListbyVehicleId != null); }