Java Unit Testing Tool Competition - Seventh Round

We report on the results of the seventh edition of the JUnit tool competition. This year, four tools were executed on a benchmark with (i) new classes, selected from real-world software projects, and (ii) challenging classes from the previous edition. We use Randoop and manual test suites from the projects as baselines. Given the interesting findings of last year, we analyzed the effectiveness of the combined test suites generated by all competing tools and compared; results are confronted with the manual test suites of the projects, as well as those generated by the competing tools . This paper describes our methodology and the results, highlight challenges faced during the contest.