Testing the user interface (UI) of an application is a critical part of the software development lifecycle. Most end users focus on the usability and aesthetics of the applications they interact with and are blind to the underlying source code and other technical aspects that make those apps functional. A poorly designed UI will undoubtedly lead to unhappy customers, so it’s important to test early and often to prevent as many bugs as possible from reaching the UI level.
Graphical user interface (GUI) testing is the process of testing an application’s visual elements to ensure the images and other features that are visible to the customer behave and look as expected. This article describes what GUI testing is, its importance, and what features your GUI testing tools should have to help you ensure proper test coverage.
Let's look at an example.