Unit testing is a software testing method that focuses on testing individual units or components of a software application in isolation. Units, in this context, can be functions, methods, or modules. The purpose of unit testing is to verify that each unit of code performs as intended.
For example, in a software development project, unit tests are created to check specific functions or methods within the codebase. By isolating and testing each unit, developers can identify and resolve bugs and ensure that each part of the software functions correctly.
