Regression Testing VS. Functional Testing
Before going into detail, let’s understand the main difference between regression and functional testing in a nutshell. Functional testing is performed to ensure all functionalities of an application is working as expected, whereas regression testing is performed once a build is released to check the existing functionality.
Functional testing uses black box testing approach to validate the functionality of an application program. Since the focus remains on the functionality, the design and user experience aspect are remain untouched. The functional testing mainly covers the following aspect.
- Customer requirement analysis
- Testing the input data
- Collecting expected results
- Test case execution
- Actual and expected result comparison
- Comparing the test case result
Some of the best practices for functional testing includes the following:
- Covering the GUI elements like font size, color, etc.
- Covering the domain, including size and formats
- Consider the order of functionality
Input data is required while executing test cases. There are two kinds of input data.
- Positive input data are the valid data that follows the system requirement specification
- Negative input data are the invalid data that is not specified in the system requirement specification
Regression testing is the key to the testing functionality of an application where even small changes can create some unexpected problems. Basically, it ensures the functionalities are working fine after an update is done. The regression testing covers the following aspects.
- Anything added to the software or any change in configuration
- New changes implemented to the built
- New features are added
- Existing functionality is changed
Regression testing is also implemented in the following areas:
- To find bugs in case of new changes or modification is done
- Check for side effect after any changes are made
- High-quality improvements
Functional testing caters the need to determine an application compliance with the stated requirements. It is a kind of graphical user interface (GUI) test executed on a complete, integrated system. Functional testing includes effective examination and validation of all functions, features, and competence of a software product. Some of the tests play a vital role in minimizing undetected defects; they include requirement-based, functional, usability, and compatibility testing.
360logica guarantees quality software product through its functional testing services irrespective of the present and future risks involved. Our proficiency lies in usability testing and providing quality assurance. This ensures that the client application is tested according to the objectives and set parameters. Our experts are adept at performing error-free integration, effective compatibility testing, and enhanced reliability of applications that are cost-effective in the least possible time.