Functional testing and its types

 

Functional testing is a form of software testing which is examined against operational requirement. It mostly defines black box testing and it is not considered about the source code. Each and every functionality of the system analyzed by providing Input, check output and comparing actual result with the expected outcome. It also ensures to deliver bug-free Solution that has all functionalities working as custom requirements

Types of Functional Testing:

·         Unit Testing

·         Component Testing

·         Smoke Testing

·         Integration Testing

·         Regression Testing

·         Sanity Testing

·         System Testing

·         User Acceptance Testing

Unit Testing:

Testing each unit and each module of code also concentrates on the smallest part of software design (module). It is also known as white-box testing and is usually done from the programmers

Unit Testing:

Testing each item or regions of the software separately is known as component testing. It's also referred to as module testing and performed by trainee following unit testing.

Integration Testing:

Integration testing is the procedure of testing the interface between two applications or modules.

Sanity Testing:

Sanity testing is done in order to ensure the major functionalities of the application is working correctly. This is generally done after cigarette testing.

Regression Testing:

Regression Testing signifies the testing procedure that's done in order to find the regression from the machine after doing any change in the product. There is a change in requirement and code is modified according to the requirement. It's mainly done after bug fixing.

Smoke Testing:

Smoke testing is analyzing the essential functionalities of this software and there's absolutely not any point to test the other specifics. It is also called build verification test.

System Testing:

Check and verify all of the system components are functioning properly. Additionally, it verifies system performance and functionality of this module

User Acceptance Testing:

UAT is conducted with the customer to confirm the system connected to the necessity and this is the last phase of testing before the production release.