1. modify web.config - mention the correct Data source, User ID and Password in the connectionString, example: connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=Inventory_System;Integrated Security=False;User ID=sa;Password=abc-123;" providerName="System.Data.SqlClient" />

2. Clean the solution, Build and run it

3. When the appliction is launched make sure the port number is-59915, if it's running in a different port number then search for 59915 in the solution and change that to new port number (it's being used in 2 controller's for making Web API call which is part of the same project)

4. When the application is launched, button Add- add's the item to inventory, Delete icon- removes the item from the list, Details- Navigates to new page with the selected item information

before running test code mention the existing ID of the item in the test method DetailFound() of ItemDetailControllerTest.cs and then choose Test -> Run All Tests

I developed the aplication using Visual studio 2017 Professional. In Professional there is no built in tool support to run code coverage test due to this i couldn't run code coverage test