public async Task Handle_WhenGetInvoiceMessage_ShouldReplyWithInvoice()
{
// Arrange
var invoice = string.Empty;
var clientId = "test_client_id";
var equipmentRepository = Substitute.For <IEquipmentRepository>();
var getInvoiceMessage = new GetInvoiceCommand
{
ClientId = clientId,
OrderItems = new List <OrderItem>()
};
var handler = new GetInvoiceCommandHandler(equipmentRepository);
var context = new TestableMessageHandlerContext();
var expectedInvoiceGeneratedMessage = new InvoiceGeneratedMessage
{
ClientId = clientId,
Invoice = invoice
};
// Act
await handler.Handle(getInvoiceMessage, context);
// Assert
context.RepliedMessages.Length.Should().Be(1);
context.RepliedMessages[0].Message.Should().BeEquivalentTo(expectedInvoiceGeneratedMessage);
}
public async Task Handle(GetInvoiceCommand command, IMessageHandlerContext context)
{
Log.Info($"Billing has received GetInvoiceMessage, ClientId = {command.ClientId}");
Invoice invoice = _billingService.GenerateInvoice(command.OrderItems);
var invoiceMessage = new InvoiceGeneratedMessage
{
ClientId = command.ClientId,
Invoice = invoice.ToString()
};
await context.Reply(invoiceMessage);
Log.Info($"Billing has replied to the calling endpoint with InvoiceGeneratedMessage, ClientId = {command.ClientId}");
}