Is regression testing part of functional testing?

Functional testing and Regression testing are often considered as two different software testing practices. But, let me help you in understanding that regression testing is a part of functional testing. Functional testing is a kind of black-box testing where the tester doesn’t validate the bugs in the code. Whereas, functional testing is used for verifying each function of the application is working as per the requirements or not.

Functional testing is further divided into different types, among which regression testing is not of the part. Let me explain in brief in this space about regression testing and functional testing.

What is Regression Testing?

Regression testing is also a type of black-box testing which is used for validating whether the new changes in the code have not affected the already existing features and functionalities of the system. With this testing process, teams can ensure that the application is functioning as per the specifications and requirements.

What are the differences between regression testing and functional testing?

Functional Testing:
• It is all about testing the functionalities of the application from the initial product development stage
• In this method, testers test the features of the application by considering the requirement specification document
• Functional testing is not performed at once
• It is carried out in various stages, starting from unit testing, integration testing, system testing, and at last, the final product is delivered
• Functional testing types include unit testing, component testing, regression testing, smoke testing, sanity testing, system testing, etc.

Regression Testing:
• It is performed only when there are new changes or enhancements made in the code or the system
• It is done on previously tested functionalities to validate if the change made in the code has not resulted in any failures in the system
• It is not performed in stages, it tests the system as a whole
• The techniques used in regression testing include component testing, database testing, etc.

There is no doubt that regression testing and functional testing are different, but it should be noted that regression testing is a part of functional testing. Leverage functional testing services from next-gen QA testing services provider to ensure every functionality is working properly as specified.