what is functional testing programming
Functional Testing â Concepts. Functional testing is a form of automated testing that deals with how applications functions, or, in other words, its relation to the users and especially to the rest of the system. Traditionally, functional testing is implemented by a team of testers, independent of the developers. While unit testing tests both what an application segment does and how it does it, functional testing tests only what the application does. A functional test is not concerned with an applicationâs internal details.