RegMiner: Mining Replicable Regression Dataset from Code Repositories
We introduce a tool, RegMiner, to automate the process of collecting replicable regression bugs from a set of user specified Git repositories. In the code commit history, RegMiner searches for regressions where a test can pass a regression-fixing commit, fail a regression-inducing commit, and pass a previous working commit again. Technically, RegMiner (1) identifies potential regression- fixing commits from the code evolution history, (2) migrates the test and its code dependencies over the history, and (3) minimizes the compilation overhead during the regression search. Our experients show that RegMiner can successfully collect 1035 regressions over 147 projects in 8 weeks, creating the largest replicable regression dataset within the shortest period, to the best of our knowledge. In addition, our experiments further show that (1) RegMiner can construct the regression dataset with very high precision and acceptable recall, and (2) the constructed regression dataset is of high authenticity and diversity. The source code of RegMiner is available at https://github.com/SongXueZhi/RegMiner, the mined regression dataset is available at https://regminer.github.io/, and the demonstration video is available at https://youtu.be/yzcM9Y4unok.
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