Functional & Non-Functional Software Testing What is Functional Testing? => Functional testing is a type of software testing that verifies whether each feature And functions of a software application work as per the specified requirements. It is a Black-Box testing method meaning the tester is not connected of the internal coding but only how applications work externally. Example: website payments Gateway working as required, form submission, navigation & UI. There are six types of Functional testing 1. Unit Testing: Testing one small part of the software to check if it works correctly. Example: Checking if a calculator adds two numbers correctly. 2. Integration Testing: Testing how different parts of the software work together. Example: Checking if the login page correctly connects with the database. 3. System Testing: Testing the complete software system as a whole. Example: Testing the entire app to check login, dashboa...