# Testing > Write comprehensive tests Use when this capability is needed. - Skill: `tomevault-io/testing-82` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/testing-82` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/testing-82/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/testing-82 --- When writing tests: 1. Use descriptive names: "should [behavior] when [condition]" 2. Follow Arrange-Act-Assert (AAA) pattern 3. Test edge cases: null, empty, boundary values 4. Mock external dependencies appropriately 5. Prefer integration tests for critical paths 6. Aim for 80% coverage minimum 7. Use test fixtures for complex data setup 8. Test error scenarios and edge cases 9. Keep tests independent and isolated 10. Use parameterized tests for similar scenarios --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/agricidaniel) — claim your Tome and manage your conversions.