Which of the following statements about testing in OutSystems is true?

Testing in OutSystems is a critical aspect of the development lifecycle, and the ability to conduct testing using the mobile app preview feature is particularly valuable for developers. The mobile app preview feature allows developers to test their applications in real-time on actual mobile devices, ensuring that the user experience is seamless and that functionalities work as intended before deployment. This capability is integral for catching issues early in the development process, making the overall testing strategy more efficient.

Furthermore, relying solely on manual testing, as suggested in one of the other choices, is not advisable because it can lead to oversights and a prolonged testing cycle. Comprehensive testing typically involves a combination of automated and manual approaches to ensure thorough coverage. The notion that automated tests are only necessary for large applications is a misconception; automated testing can and should be part of the development process for applications of all sizes to improve reliability and reduce regression risks.

By effectively utilizing the mobile app preview feature, developers can ensure their applications are polished and ready for the end-users, which highlights the importance of this method in the testing strategy within the OutSystems environment.