Creating a receipt

[nuxibyte]

Feature
As a seller
In order to add an item to the system
I want to record the item details

Tests
Given a web form
And the item does not exist
When the item details are entered
And the save button is clicked
Then the item details are stored
And a unique item id is created
And the item id is displayed

Given a web form
And the item already exists
When the item details are entered
And the save button is clicked
Then the item details are rejected