unit-test
Skill5 starsChanged 5 months agoMITView on GitHub
Unit testing techniques, mocking, and assertions
We split this skill into the rules it gives an agent
5 rules. 0 are common, 4 are distinctive, and 1 is very specific to this project.
0
Common
Most of the 8 edited versions we read keep these.
4
Distinctive
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 11
When writing tests for utility functions, algorithms, or standalone classes.
- Distinctive: line 12
When using tools like Jest, pytest, JUnit, or xUnit.
- Distinctive: line 13
When needing to mock out dependencies (databases, APIs, file systems).
- Very specific: line 17
Naming: Use clear, descriptive names (e.g., calculateTotal_withValidInput_returnsCorrectSum).
- Distinctive: line 18
Structure: Use the Arrange-Act-Assert (AAA) pattern.
“Common” is measured: kept by at least 6 in 10 of the 8 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Unit Test Skill
This skill focuses on writing fast, isolated tests for individual units of code (functions, methods, classes).
When to use this skill
- When writing tests for utility functions, algorithms, or standalone classes.
- When using tools like Jest, pytest, JUnit, or xUnit.
- When needing to mock out dependencies (databases, APIs, file systems).
Guidelines
- Isolation: A unit test should not rely on an external database or network. Use mocks or stubs instead.
- Naming: Use clear, descriptive names (e.g.,
calculateTotal_withValidInput_returnsCorrectSum). - Structure: Use the Arrange-Act-Assert (AAA) pattern.
- Speed: Unit tests must be fast so developers can run them frequently.
Other versions13 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 13
- xtermjs/xterm.js★ 21ksame name
- oprogramadorreal/optimus-claude★ 75same name
- ivyfan-toowell/IvyClaw★ 66same name
- johnqtcg/awesome-skills★ 30same name
- kudeerliu48-web/CloseCode★ 14same name
- neomjs/neo-agent-skills★ 11same name
- phatysddev/skills★ 7same name
- kevinaimonster/skill-hub★ 4same name
- lldwb/lldwb-claude-skills★ 1same name
- moveju112/skill_verify★ 1same name
3 more not listed
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository38 other files it gives its agents.
- AGENTS.mdAGENTS.md
- codex/AGENTS.mdAGENTS.md
- claude/CLAUDE.mdCLAUDE.md
- CLAUDE.mdCLAUDE.md
- .github/copilot-instructions.mdCopilot instructions
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- integration-testSkill
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- tddSkill
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Your trail
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