ASP.NET MVC 1.0 Test Driven Development: Problem - Design - Solution

9.1. Problem

There is no doubt that users of this application have hundreds if not thousands of contacts that they want to reach. They need to get these contacts into our application, but so far, we have only enabled them to do that one contact at a time. In a real-life application this will not work. We need to enable the users to enter contacts in bulk either by typing them (copying and pasting) or by uploading a text file with their contacts.