Git and Testing
summary
Explains how Git’s test tooling gets applied to a real project: reuses Sharness (shell-based test harness) to add 58 test scripts (~800 tests) as black‑box coverage for IPFS, runs them on commits where possible, and automates regression hunting with git bisect plus scripts so bisect can run make/tests and interpret exit codes (125 = skip). Describes handling many untestable intermediate commits, CI limits (Travis/CircleCI), a charnesify helper script, and measurable reduction in elusive regressions.
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