# Test Writing

> Enforces Given-When-Then test structure

- Skill: `plipowczan/test-writing` (Agent Skill)
- Install (CLI): `npx skillmds@latest add plipowczan/test-writing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/plipowczan/test-writing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: plipowczan (https://skillmd.com/u/plipowczan)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/plipowczan/test-writing

---


# Test Writing Skill

**Naming:** `should{Behavior}When{State}`

**Structure:**
```javascript
// GIVEN - setup
// WHEN - act
// THEN - assert
```

**Requirements:** Independent, Fast (<100ms), Edge cases

`Read .claude/reference/skills-full/test-writing-full.md`