MS Test Unit Tests in Visual Studio
Adding unit tests to a project:
Open the project in visual studio.
Select File” → “Add” → New Project → MSTest Test Project (select C# or Visual Basic (to match the project language).
Create the project.
Right-click the Unit test project name
Project Reference
Link the unit tests to the project folder corresponding to the application being tested.
Running existing unit tests:
Select Test → Run All Test