Continuous Regression Testing for Safer and Faster Refactoring in C++
Talkat CppCon 2023 · on Monday, 2023-10-02· at 15:15· Cottonwood 8/9, 6700 North Gaylord Rockies Boulevard·
summary
Claims a practical, end-to-end regression system: a C++ SDK plus CLI, GitHub Actions plugin and server that serializes captures with flatbuffers, stores results (Redis/Mongo/MinIO or cloud equivalents), compares them, and surfaces diffs on a web dashboard and via Slack/email. It captures values and runtimes from code (including production-noop captures), supports GCC/Clang/MSVC and C++11+, plugs into Bazel and Google Benchmark, tracks build time, binary size and exported symbols, and is now a free open-source tool that helped 10+ companies find 1,000+ unintended regressions while capturing variables and runtimes for precise comparison.
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chapters (17)
- 0:00Introduction to refactoring
- 0:30Engineering for safety
- 3:50About the speaker and context
- 10:32Regression testing challenges
- 14:48Introducing Tuka
- 17:36Writing tests with Tuka
- 20:08CI integration and dashboards
- 21:28Handling performance regressions
- 23:38Tuka architecture and SDK
- 26:57Advanced data capturing
- 30:05Data submission and retention
- 34:15Regression testing use cases
- 38:36Testing culture and philosophy
- 43:52Best practices for writing tests
- 46:13Safety at Aurora
- 49:43Conclusion
- 50:23Q&A session
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