public void WhenAddingReminder_ThenUpdatesServiceReminder()
        {
            const int newReminderId = 456;

            var vehicle = new Vehicle { VehicleId = DefaultVehicleId, Name = "vehicle" };

            _vehicleRepository
                .Setup(r => r.GetVehicle(DefaultUserId, DefaultVehicleId))
                .Returns(vehicle);

            _reminderRepository
                .Setup(r => r.Create(DefaultVehicleId, It.IsAny<Reminder>()))
                .Callback(new Action<int, Reminder>((vehicleId, reminder) =>
                                                        {
                                                            // represents the entity created internally
                                                            reminder.ReminderId = newReminderId;
                                                            reminder.VehicleId = DefaultVehicleId;
                                                        }));

            var formModel = new ReminderFormModel();

            var handler = new AddReminderToVehicle(_vehicleRepository.Object, _reminderRepository.Object);
            handler.Execute(DefaultUserId, DefaultVehicleId, formModel);

            Assert.Equal(newReminderId, formModel.ReminderId);
            Assert.Equal(DefaultVehicleId, formModel.VehicleId);
        }
        public void WhenAddingReminder_ThenDelegatesToReminderRepository()
        {
            var vehicle = new Vehicle { VehicleId = DefaultVehicleId, Name = "vehicle" };

            _vehicleRepository
                .Setup(r => r.GetVehicle(DefaultUserId, DefaultVehicleId))
                .Returns(vehicle);

            var handler = new AddReminderToVehicle(_vehicleRepository.Object, _reminderRepository.Object);
            handler.Execute(DefaultUserId, DefaultVehicleId, new ReminderFormModel());

            _reminderRepository
                .Verify(r => r.Create(DefaultVehicleId, It.IsAny<Reminder>()), Times.Once());
        }