Summary of the 2nd International Flaky Test Workshop (FTW 2025)

Test flakiness refers to the unpredictable behavior of software tests, where a test may pass or fail even when neither the test code nor the system under test has changed. This results in reduced developer productivity, costly and repeated test reruns, hidden or overlooked defects, and diminished confidence in test suites. While the problem has received increasing attention from both practitioners and researchers in recent years, opportunities for focused discussion remain limited. The 2nd International Flaky TestWorkshop (FTW 2025) was held on April 27th, 2025, in conjunction with the 47th International Conference on Software Engineering (ICSE 2025). The program emphasized two main themes, flakiness in specific and previously neglected domains and improving flakiness mitigation techniques, and also included demonstrations of new datasets and tools to support research and practice.