The purpose of visual testing includes checking for what type of issues?

The purpose of visual testing primarily focuses on identifying visual defects that may arise in a user interface or graphical elements of an application. Visual testing ensures that the visual presentation of an application matches the design specifications and creates a seamless experience for the user. This involves checking for discrepancies in layout, color schemes, fonts, images, and other visual aspects that contribute to the overall aesthetic and usability of the application.

By focusing on visual defects, visual testing plays a critical role in maintaining high-quality standards in software applications. This is important because even if the underlying logic or data functions correctly, a poor visual presentation can lead to user dissatisfaction and a negative perception of the application. Therefore, visual testing complements functional testing by addressing the user experience at a fundamental level.

In contrast, addressing logic-based errors, data-related issues, and security vulnerabilities pertains to other testing methodologies that focus on aspects like performance, correctness of operations, and protecting against unauthorized access, respectively. These areas fall outside the scope of visual testing.