What is unit testing

https://www.youtube.com/watch?v=h9RvPN3kiHk&feature=youtu.be

 

• Testing of individual software components or units or modules. Typically unit testing is done by the programmer and not by testers.




• Unit is smallest and complete set of code which accepts input, processes and gives output




• The primary goal of unit testing is to take the smallest piece of testable software in the application, isolate it from the remainder of the code, and determine whether it behaves exactly as you expect.