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Regression in Testing: A Comprehensive Guide to Ensure Quality Assurance

Regression in Testing


Regression testing is a way to ensure that your software remains bug-free. It’s used to find bugs in your code, which are then fixed before the end of development. Regression testing has become a standard practice in many companies, but it’s important to know how regression works and why it’s so important for quality assurance (QA) teams. In this article, we will discuss what exactly regression means and how you can use it for your own projects!

What is regression?

Regression testing is the method of testing to confirm that a new version of a product or application is compatible with the older versions.
Regression refers to the tendency for software systems to revert back to the last states after changes made in subsequent versions. It may also refer to reverting back from one state (e.g., “the regression test suite”)

How to identify regressions in your testing

When it comes to regression testing, there are several things that need to be considered. First, you need to determine the problem. The best way is by conducting a walkthrough with your team members and observing how they perform their tasks in real-life situations.
Next, you should identify the cause of this issue so that you can eliminate it from further testing stages or reduce its impact on other parts of your application (e.g., data entry). For example: “We identified an issue where users were unable to complete some tasks because they received an error message when trying them out.” Once we know what’s causing this problem, we can fix it by modifying one part of our application or adding another step so that users don’t get stuck anymore during these activities

How to prevent regressions in your testing

Use test coverage to identify areas where regression testing is needed.
Create a regression test suite.
Use a regression testing tool to carry out the tests, or write them yourself using some sort of scripting language (e.g., PHP).
Check for regressions after every release: If you find that there are any errors in your code, then make sure they get fixed before going on with development!

Where do you apply regression testing?

Regression testing is a type of software testing that’s used to confirm that a new version or release of a software product does not alter the functionality of the earlier versions. This is important because it allows you to know if your application has been altered by external factors, such as bugs in code or new components being added by users.
Regression testing can be achieved after system integration and before system delivery.
Testing with regression coverage
Regression coverage is the part of code you have covered by unit tests. It’s a simple concept: if you have 100% coverage, then every line of code in your app has been covered by one or more unit tests.

Unit tests run on every single line of code as it’s being written (or modified). This means that if something changes and breaks your functionality, there will be an error message or failure reported in the console window at runtime and not when running your test suite manually. If you want to see how much regression coverage actually matters for a given build in practice, try this little experiment: Create a new ASP.NET Core MVC Web API project with four methods containing no business logic whatsoever; call each method with some random data; then run through them one by one until all tests pass — which should take under 10 minutes!
The takeaway from this article is that you should always try to test your app with real users. This will ensure the quality of your product, which will help you avoid any potential problems before they arise.


The key takeaway from this article is that regression testing is essential to ensure quality. It can be difficult to identify, but with the right tools, it can be done easily.




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