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8 September 2022

Functional testing Vs Integration testing | Difference | Comparison

Throughout the software development life cycle, various kinds of software testing are carried out. Functional and integration testing each have their own benefits and are equally important. Software programmers frequently misunderstand the differences. This blog compares and clarifies the difference between functional testing and integration testing. Let us debate Functional testing Vs integration testing to better understand more about it. 

What is Functional testing?

An automated procedure called functional testing is used to verify functionality across a variety of user inputs. Functional testing ascertains whether the application performs as documented, that is, in compliance with the intended business function and design specifications. It entails running all test cases specified for the entire product or feature being tested on one or more data sets. The objective is to confirm that functionalities function as intended. Software testing is conducted more scientifically through functional testing. It entails running defined test cases with defined data sets across several GUI/web pages and other components of the program under test that are designed for a particular functionality. 

What is Integration Testing?

The connection and interfaces between the various components are also looked at, and the software modules are tested together. The operations at the project level for integrating the individual constituent must be coordinated. For the defined integration of early bug detection, the integration, and integration must follow a building plan. |But unlike a system tester, an integration tester needs to know to program. 

Functional testing Vs Integration testing | Difference between functional testing and integration testing

  • Functional testing is the behavior of the application as per the requirement. While integration testing is the integration of two or more units/modules combined for performing tasks. 
  • Functional testing is more complex compared to unit and integration tests. While the integration testing is more complex than unit tests.
  • Black box testing is used for functional testing. While the integration technique is used in black box, white box, and grey box testing. 
  • The major attention of functional testing is only to the entire application functionality. While the integration testing integration of modules or units.
  • Functional test fin issues that do not allow an application to perform its functionality. This includes some scenario-based issues too. Integration tests identify problems that might arise when merging several modules.
  • Functional testing of entire application functionality. While in integration testing integration of modules or units.
  • In functional testing, more chances of issue escape as the list of tests to run is always infinite. While the integration testing has less chance of issue escape. 
Thanks for reading the article. Still, if you have any questions or queries in your mind on Functional testing Vs Integration testing then please ask us in the comment section below.

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