public Invoice SaveInvoice(Invoice invoice)
{
var vehicle = _unitOfWork.Vehicles.GetById(invoice.VehicleId);
var vehicleExistsSpec = new VehicleExistsSpecification();
if (!vehicleExistsSpec.IsSatisfiedBy(vehicle))
{
throw new VehicleNotFoundException(invoice.VehicleId);
}
if (invoice.Id == 0 || invoice.VehicleId != vehicle.Id)
{
var uniqueInvoiceSpec = new UniqueInvoiceSpecification(_unitOfWork.Invoices);
if (!uniqueInvoiceSpec.IsSatisfiedBy(invoice))
{
throw new InvoiceAlreadyExistsForVehicleException(invoice.VehicleId);
}
}
SetVehicleToSoldStatus(vehicle);
if (invoice.Id == 0)
{
invoice.InvoiceNumber = GenerateInvoiceNumber(invoice.VehicleId);
_unitOfWork.Invoices.Add(invoice);
}
_unitOfWork.SaveChanges();
return(invoice);
}
public void UniqueInvoiceSpec_CreatingNewInvoice_WhenNotSatisfied_ReturnsFalse()
{
var invoice = new Invoice {
VehicleId = 1
};
var spec = new UniqueInvoiceSpecification(_invoiceRepo);
var result = spec.IsSatisfiedBy(invoice);
Assert.False(result);
}
private bool CheckInvoiceIsUniqueToVehicle(Invoice invoice)
{
var spec = new UniqueInvoiceSpecification(_unitOfWork.Invoices);
return(spec.IsSatisfiedBy(invoice));
}