Individual skill
snapshot-testing-auditor
Audits brittle UI and JSON snapshot tests to eliminate false alarm failures and replace them with resilient semantic assertions.
skills/testing/snapshot-testing-auditor/SKILL.md
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## Purpose
Audit test suites for brittle, oversized snapshot tests (Jest/Vitest `toMatchSnapshot()`) that create false alarms during trivial styling updates, blind `-u` approval habits, and slow CI runs, replacing them with precise semantic assertions.
## When to Use
- Developers routinely run `jest -u` without reading git diffs because snapshots break on every commit.
- Huge 500-line JSON/HTML snapshots stored in repository bloating git history.
- Distinguishing when inline snapshot testing is valuable vs when it provides illusory test coverage.
## What to Analyze
1. **Snapshot Granularity**: Giant DOM tree snapshots vs targeted component state / schema snapshots.
2. **Volatile Data**: Dynamic dates, random UUIDs, or counter variables causing non-deterministic snapshot diffs.