Test Patterns

by rohitg00

Test Patterns is a Quality skill for Claude Code, published by rohitg00 in skillkit.

1.5K stars137 forkson rohitg00/skillkitAdded 2026/08/19+1% in starsRepository updated 2026/06/02

View source on GitHub Download repo ZIP

agent-skillsagentskillsaiclicodexcursorgeminiopencodeskills

Install in seconds

Install Test Patterns

Copy Test Patterns into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/rohitg00/skillkit/tree/main/packages/core/src/methodology/packs/testing/test-patterns ~/.claude/skills/test-patterns

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/rohitg00/skillkit.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: packages/core/src/methodology/packs/testing/test-patterns/SKILL.md in rohitg00/skillkit
Installs to: ~/.claude/skills/test-patterns
Collection: One of 17 skills cataloged from this repository
Category: Quality — 1354 skills

What Test Patterns does

Test Patterns applies proven testing patterns like Arrange-Act-Assert, Given-When-Then, Test Data Builders, Object Mother, parameterized tests, fixtures, spies, and test doubles to help write maintainable, reliable, and readable test suites. Use when writing unit, integration, or end-to-end tests, applying TDD/BDD, or working with mocks, stubs, spies, or fakes.

Test Patterns is cataloged under Quality on DirSkills. Test Patterns comes from a repository tagged agent-skills, agentskills, ai, cli and codex.

Documentation

README

Excerpt

Test Patterns

You are applying proven testing patterns to write maintainable, reliable tests. These patterns help ensure tests are readable, focused, and trustworthy.

Pattern Selection Guide

Use this to choose the right pattern for your situation:

Structuring a single test? → Arrange-Act-Assert (AAA) or Given-When-Then
Writing behavior/feature specs? → Given-When-Then (BDD style)
Repeating test setup data? → Test Data Builders
Many variations of complex objects? → Object Mother
Testing same logic with many inputs? → Parameterized Tests
Shared setup/teardown across tests? → Test Fixtures
Verifying a dependency was called? → Spy
Replacing an external dependency? → Test Doubles (Stub / Mock / Fake)

Pattern Combination Workflows

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Test Patterns

What else does rohitg00 publish alongside Test Patterns?
Test Patterns is one of 17 skills that DirSkills catalogs from rohitg00/skillkit, the repository it ships in. Its siblings there include Design First, Eval Injection Test and Find Skills. Each one is a separate skill with its own page in this directory, installs the same way Test Patterns does, and is maintained by rohitg00 in that same repository. The rest of the collection is listed on the rohitg00/skillkit page.
How does Test Patterns compare to other Quality skills?
Test Patterns ranks #667 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Test Patterns against them. Open each page to compare what they document and how they install.