Jest, a popular JavaScript testing framework, offers customization options for handling assertion errors when tests fail. This feature is often underutilized but can improve test readability and debugging experience. When a developer makes changes to the code, it may cause a test to fail without providing clear information about what broke. The `toHaveProperty()` function from Jest can help with this by highlighting missing properties in the error message. However, even with this feature, the error messages can be cryptic and difficult to interpret. Refactoring the test code to make it more explicit and intuitive can improve its readability and effectiveness. By using clear variable names, concise conditionals, and descriptive comments, developers can create tests that are easier to understand and debug, even when multiple validators are used. This approach can lead to a better debugging experience for both developers and testers.