BDD : Behavior Driven Development

http://specflow.org/getting-started/

http://www.dotnetcurry.com/patterns-practices/1375/behavior-driven-development-bdd

http://specflow.org/documentation/Unit-Test-Providers/


Steps:

1. Open Visual Studio --> Tools --> Extension and Update
    Specflow

2. Create a Unit test Project
    Select project --> Nuget Manager
     Specflow
     install Specflow and NUnit

3.  App.Config , Add following
<specFlow>  
  <unitTestProvider name="MSTest"></unitTestProvider>
</specFlow>

4. Create new Item,
  Specflow. feature file
  Right Click on Feature file in Test Editor  --> Generate Steps

5. Build , Open test explore and select the test case
     Execute