chunk-testing-gaps

Mutation testing identifies surviving test gaps by injecting mutants into auth, control-flow, and validation logic, then running local static checks and targeted tests to see which mutations pass undetected, exposing real coverage holes before CI.

Mutation testing validates survivors by creating git worktree branches for local static analysis and targeted tests, then pushing branches to remote CI pipelines to confirm whether mutants escape detection in your full validation workflow.

Yes, mutation testing specifically targets authentication and authorization logic, input validation, state changes, and error-handling pathways while deliberately avoiding test and generated code to focus on security-critical execution paths.

The best approach maps surviving mutants to real traffic using observability signals, cross-referencing production data to determine which undetected mutations pose actual risk, then ranking outcomes by severity for prioritized reporting.

Yes, mutation testing uses a staged workflow combining local VCS codebase checks via git worktrees with remote CI verification, running static analysis locally first, then confirming surviving mutants through pushed branches and CI pipeline results.