The Regression Tests Nobody Writes: Capturing How Software Actually Behaves
Standard regression tests usually only verify developer intent rather than the actual, unwritten behaviors that systems accumulate in production over time. By capturing real production traffic and network-level interactions, teams can build characterization test suites to automatically detect unintended behavioral shifts. This approach prevents accidental regressions during legacy refactoring, rewrites, and major framework upgrades.
DEPTH ■■■■■6 min read2 days ago
