What is functional testing

Question

Accepted Answer

Functional testing is a type of software testing that verifies the functionality of an application.

It focuses on testing the individual functions or features of an application.
It ensures that the application meets the specified requirements and works as expected.
It involves testing the input and output of functions, as well as the interaction between different functions.
Examples include testing login functionality, form submission, data retrieval, and error handling.
It can be performed manually or using automated testing tools.

Accepted Answer

Functional Testing

Basically we are validating functionality of application as per customer requirement

and checking correctness and completeness of application.

It is a major part of black box testing technique

It is define different coverages like

behavioral coverage
during that validating property and behavior of object
Error handling coverage -
Incase of invalid input error should be display
Input domain coverage -
in that measure the size and type of input objects
It differentiate in terms of BVA and ECP
BVA - boundary value analysis
ECP - equivalence class partition
Backend database coverage-
we are validating whatever we are updating in frontend which is reflect in backend or not
service level coverage -
order of functionality means every functionality should be in proper order
calculation based coverage -
checking the output of airthmatic calculation

Accepted Answer

testing the functional features of application,that is page opening,navigation,upon number of user applicaion performance

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