# Unit Testing

> Deprecated. Use testing/extension-testing (references/unit.md) for MetaMask Extension, or testing/mobile-testing (references/unit.md) for MetaMask Mobile. Kept as a redirect stub for older installs and --include paths.

- Skill: `metamask/unit-testing` (Agent Skill, multi-file: 4 files)
- Install (CLI): `npx skillmds@latest add metamask/unit-testing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/metamask/unit-testing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: metamask (https://skillmd.com/u/metamask)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/metamask/unit-testing

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# Deprecated — use `extension-testing` or `mobile-testing`

| Product | Install | Open |
| --- | --- | --- |
| MetaMask Extension | **`extension-testing`** | `references/unit.md` |
| MetaMask Mobile | **`mobile-testing`** | `references/unit.md` |

Do not treat this skill as the primary testing guide.