The purpose of this project is to assess and improve the quality (efficiency and completeness) of current regression tests. It includes the following activities:

• Automatic test selection in a Build Bot (see SelectiveTestBuildBot)
• Selective testing in the Early Warning System (see SelectiveTestEWS)
• Extension with top-100 websites using automatic invariant analysis (see Top100Invariant)
• Research on isolation of flaky tests and further research topics (RegressionTestResearch)

The work is currently being performed by the Department of Software Engineering of the University of Szeged (see Companies and Organizations that have contributed to WebKit).