Ryohei Takasawa, Kazunori Sakamoto, Akinori Ihara, Hironori Washizaki, Yoshiaki Fukazawa, “Do open source software projects conduct tests enough?,” Proceedings of the 15th International Conference of Product Focused Software Development and Process Improvement (Profes 2014), Short Paper, Helsinki, Finland, 10-12 December 2014. (to appear)

Do open source software projects provide and maintain tests? What metrics are correlated with the test success? This paper answers these questions by executing tests of 452 open source software projects in GitHub and measuring 13 metrics from 77 projects. Only 117 projects passed all test cases. Additionally, the results are correlated with the comment density, public documented API density, and test coverage.