How to Test a Milion Lines of Code without Writing a Single Test
summary
An open Community Build continuously pulls projects from Scaladex, maps published versions to GitHub tags, and runs staged builds on Kubernetes/Jenkins with SBT and Mill, publishing artifacts to a private repository. It currently exercises 940 projects covering about 7.5 million lines of code, takes roughly 20 hours to run, and uses scalafix to patch Mill builds and a planner to order dependency stages. The system reports failures, produces logs and reproductions, and has found 12 regressions so far.
AI-written summary · about
chapters (7)
- 0:00Introduction and background
- 3:14Current Scala compiler testing
- 10:16Introducing Open Community Build
- 21:35How Open Community Build works
- 30:58Finding and fixing regressions
- 41:37Impact and future of Open Community Build
- 43:45Q&A session
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