frankely / PointOfSale

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README (THIS IS JUST AN EXCERCISE) DO NOT USE THIS

This README would normally document whatever steps are necessary to get your application up and running.

I used BDD for this and here is the feature file corresponding to the tests PointOfSaleCheckout.feature

Prerequisites

  • Java 8 SDK
  • Maven 3.0

Run Tests

Run the following command in the project root folder where is located pom.xml

mvn test

Use the API

In order to use the API you need an instance of PointOfSaleFacade

PointOfSaleFacade pointOfSaleFacade = new PointOfSaleFacade();

Add a new product

pointOfSaleFacade.getProductService().add(new Product("A",new BigDecimal(2.00)));
...

Set volume price

pointOfSaleFacade.getProductService().addVolumePrice(new ProductVolumePrice("A",4,new BigDecimal(7.00)));
...

Scan a product

pointOfSaleFacade.getPointOfSaleTerminaService().scan("A");
....

Calculate Total

BigDecimal total = pointOfSaleFacade.getPointOfSaleTerminaService().calculateTotal();

Checkout (Set everything ready for another order)

pointOfSaleFacade.getPointOfSaleTerminaService().checkout();

Full sample

public class Main {
    public static void main(String[] args) throws EntryNotFoundException {

        PointOfSaleFacade pointOfSaleFacade = new PointOfSaleFacade();

        pointOfSaleFacade.getProductService().add(new Product("A",new BigDecimal(2.00)));
        pointOfSaleFacade.getProductService().addVolumePrice(new ProductVolumePrice("A",4,new BigDecimal(7.00)));


        pointOfSaleFacade.getProductService().add(new Product("B",new BigDecimal(12.00)));

        pointOfSaleFacade.getProductService().add(new Product("C",new BigDecimal(1.25)));
        pointOfSaleFacade.getProductService().addVolumePrice(new ProductVolumePrice("C",6,new BigDecimal(6.00)));

        pointOfSaleFacade.getProductService().add(new Product("D",new BigDecimal(0.15)));

        pointOfSaleFacade.getPointOfSaleTerminaService().scan("A");
        pointOfSaleFacade.getPointOfSaleTerminaService().scan("B");
        pointOfSaleFacade.getPointOfSaleTerminaService().scan("C");
        pointOfSaleFacade.getPointOfSaleTerminaService().scan("D");

        System.out.println(pointOfSaleFacade.getPointOfSaleTerminaService().calculateTotal());

        pointOfSaleFacade.getPointOfSaleTerminaService().checkout();
    }
}

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