What is a primary benefit of unit testing rules?

Unit testing rules is a critical practice in software development, particularly in systems like Pega, where robust performance and accuracy are essential. The primary benefit of unit testing rules is that it identifies configuration issues potentially affecting other rules. This means that by testing individual pieces or units of rules in isolation, developers can ascertain whether those rules function as intended and check for any misconfigurations or errors that could have broader implications.

When a unit test exposes a configuration issue, it can signal that there might be related rules or processes that could also be impacted by the same underlying problem. This proactive identification helps maintain system integrity and reduces the risk of cascading failures or unintended behaviors in the application. Furthermore, by focusing on the functionality of each rule in isolation, testing becomes a way to ensure that all components are working as expected before they interact with other elements in the wider system.

Other options do not highlight the main advantage of unit testing effectively. Complete rule coverage, while an important aspect, is not guaranteed solely through unit testing, as it may require additional comprehensive testing strategies. Ensuring rule documentation is up to date and preventing the duplication of rules are important practices in rule management, but they are not direct benefits of unit testing itself. Thus, identifying configuration issues is indeed the