Regression testing is a software testing process that involves verifying the functionalities of an application or system after modifications have been made that could impact its performance. Unit testing is a software testing process that involves thoroughly testing individual functions or modules of a program using specialized tools. Unit testing helps testers to catch bugs early in the development process when they can be addressed more efficiently.

Regression Testig has its importance with regards to software maintenance. Its primary goal is to discover bugs across the system that were missed during first rollout of a new feature.

Visual regression testing is a type of regression testing to ensure that no changes to the program adversely affect the Graphical User Interface (GUI). It is also referred to as visual validation testing. Instead of focusing on the functionality of the software, it aims to validate the software’s aesthetic side. Visual regression testing verifies that all visual elements are displayed properly across all available browsers, devices, and platforms.

While ‘Smoke Testing’, ‘Sanity Testing’, and ‘Regression Testing’ are widely practiced in the world of QA, there still exist some misinterpretations or misconceptions around these concepts. For your team to make the most optimal use of the 3 methods, this article will help you to understand and differentiate them from one another.

Regression testing ensures changes to the source code are not causing unexpected issues to the existing system or to see if software functionality has regressed. Visual regression tests focus on how the user will receive the final interface that the user interacts with is essential and ultimately paramount to how web pages are displayed.

Malfunctions or flaws often lead to a sequence of chain reactions that can affect the software altogether as the program runs, impairing the overall user experience. Usually, the software undergoes many tests before Dev teams introduce modifications introduced in the main code. Regression testing is the final step of this process, which is an assurance of achieving a fully functional application or software. In this post, let’s explore seven different types of regression testing.

Regression testing—when done well—gives software teams the confidence that their entire application works properly after a code change. But doing regression testing manually is time-consuming, costly, and difficult to scale. As their applications grow in complexity, many teams end up having to throw more and more resources into regression testing—hiring more QA specialists and waiting longer for them to complete testing with each release cycle.

End-to-end testing is a type of software testing that checks the system as a whole from start to finish. Regression testing is software testing that checks for errors after changes have been made to the code. Both are important for the software development process. However, they are two different types of tests that serve different purposes.

Regression testing involves repeatedly evaluating an upgraded web app, software program, or system's existing functionalities as we went through Regression Testing Challenges and Best Practices in a previous post. Testers use it to verify an app's live and new features operate properly. Under regression testing, the quality analyst evaluates current features' functional and non-functional aspects for defects and mistakes.

In a world where technological advances are made on a daily basis, software products are often affected by routine updates. While updating software is necessary for all businesses, it can introduce a slew of bugs into applications and websites. If these software bugs are not thoroughly tested, validated, and fixed, they could end up costing the company a lot of money in production. User interface (UI) and visual bugs in software products are often disregarded due to the focus on functional testing.