Towards the definition of a research agenda on mobile application testing based on a tertiary study

Context: Mobile application testing has gained considerable attention in recent years since mobile devices have become increasingly present in our lives. Unlike traditional software, mobile application testing has to deal with peculiarities, such as screen size and densities, different operating systems, and multiple sensors that increase the complexity of testing.Objective: This paper summarizes and analyzes the current secondary studies on mobile application testing through a tertiary study.Method: We selected and analyzed 21 secondary studies related to mobile application testing.Results: We categorized 21 secondary studies according to their main and specific research topics, test objectives, and testing platforms. Furthermore, we analyze 87 gaps and challenges identified by the secondary studies to understand which gaps have already been addressed and which gaps are still uncovered. Conclusion: Based on the results, we propose a research agenda with 15 open challenges related to mobile application testing to help future research.