Visual testing is a type of testing that involves comparing the visual appearance of a user interface (UI) to a reference image or set of images to ensure that it is correct and consistent. Some benefits of visual testing are:

1. Detects visual defects: Visual testing can help detect visual defects that may not be caught by other types of testing, such as layout issues, font or color mismatches, and other visual inconsistencies.

2. Ensures visual consistency: Visual testing can ensure that the UI is visually consistent across different devices, browsers, and operating systems, which is important for user experience and brand consistency.

3. Reduces manual testing: Visual testing can reduce the need for manual testing by automating the comparison of the UI to reference images, which can save time and effort.

4. Improves team collaboration: Visual testing can improve team collaboration by providing a clear set of reference images that can be shared and used by different team members, such as designers, developers, and QA engineers.

5. Increases coverage: Visual testing can increase the coverage of UI testing by including visual elements that may not be covered by functional testing, such as the visual appearance of error messages or loading states.

6. Enhances customer satisfaction: Visual testing can help ensure that the UI is visually appealing and easy to use, which can enhance customer satisfaction and retention.

The list goes on and on. You would need to try your hands on it to know more about it. 
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