unit-testing SKILL.md skillA
unit-testing from nerds-odd-e/doughnut is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nerds-odd-e/doughnut/unit-testing@git:20261012.6fadfdbPins git:20261012.6fadfdb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nerds-odd-e/doughnut
- Path
.agents/skills/unit-testing/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261012.6fadfdb, committed Oct 12, 2026
- First version recorded
- Sep 16, 2026
- Size
- 7,771 bytes
- Repository stars
- 50
- License
- MIT
Small-test style for unit tests — stable boundary, data over mocks, focused assertions, concise makeMe (all packages). Use when writing or changing unit tests in any package.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# "Small test" style This repo’s automated tests are **E2E** or **unit tests** — nothing in between. Write unit tests in the **"small test"** style below. A **"small test"** means: a fast, in-process unit test (JUnit, Vitest, Bach, …) that drives a **stable boundary** with crafted data/`makeMe`, exercises real lower-level production code, and mocks only external dependencies. Stack commands, entry points, and tooling stay in the package skills (`frontend` / `frontend-testing`, `backend` / `backend-testing`, `cli`, `mcp-server`). ## Stable boundary - **Drive the outermost (or domain-stable) interface.** Prefer the public surface under test — e.g. a controller, mounted component, CLI `run` / `runInteractive`, MCP tool — or an interface that is itself a deliberate, domain-stable contract (pure algorithm, validation API). Do not add a test class per internal production class, and do not widen exports only so tests can reach helpers. …
Read the whole file at its exact version.
How to install
mdr add nerds-odd-e/doughnut/unit-testing@sha256:1778c260cf9da64fThe line at the top of this page pins the label git:20261012.6fadfdb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7mrr7aucudk7xsdi)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 16, 2026 and Oct 12, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.6fadfdb latest | 2026-10-12 | 6fadfdb | 7,771 B | A | view · diff |
| git:20261010.b96f234 | 2026-10-10 | b96f234 | 6,346 B | A | view · diff |
| git:20260916.b334104 | 2026-09-16 | b334104 | 6,087 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7771 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nerds-odd-e/doughnut · 50 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7mrr7aucudk7xsdi GET https://markdownregistry.com/api/v1/resolve?ref=nerds-odd-e/doughnut/unit-testing GET https://markdownregistry.com/api/v1/blob/1778c260cf9da64f91d4595f0015c7d3f7c6ec51130a4399b01704c6bca99463
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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