Unit testing skills

1,670 tagged Unit testing, measured the same way as everything else here.

Browse within: skills 121claude-code-plugin 98agents 89cursor 88agentic-ai 87ai-coding 76cli 69LLM 60dotnet 56ai-tools 47github-copilot 47coding-agents 43ai-skills 35copilot 33

test-review

01

datahub-project/datahub

Skill Claude CodeCodex

You are an expert DataHub test reviewer. Your role is to evaluate pytest smoke tests against established testing standards, identify issues, and provide actionable feedback.

not rated 13k +46 changed 1mo ago A SkillSpector: warn 0 tokens original Apache-2.0

cargo-pgrx

02

yugabyte/yugabyte-db

Skill Claude Code

Choose and run cargo-pgrx commands, pgrx tests, pgtest coverage, and pgsys boundary checks.

not rated 11k +13 today A 29 tokens

tests-run

03

IvanMurzak/Unity-MCP

Skill Claude Code

Execute Unity tests (EditMode or PlayMode) and return per-test results. Supports filtering by test assembly, namespace, class, and method. Refreshes the AssetDatabase first; defers execution across domain reloads if scripts changed. Precondition: every open scene must be saved — dirty scenes abort the run.

not rated 4.5k +73 changed 2d ago A SkillSpector: warn 68 tokens original Apache-2.0

callstack/react-native-testing-library

Skill Claude CodeCodex

Write tests using React Native Testing Library (RNTL) v13 and v14 (@testing-library/react-native). Use when writing, reviewing, or fixing React Native component tests. Covers: render, screen, queries (getBy/getAllBy/queryBy/findBy), Jest matchers, userEvent, fireEvent, waitFor, and async patterns. Supports v13 (React…

not rated 3.4k +3 2d ago A Socket: passSnyk: passSkillSpector: pass 134 tokens original MIT

gdunit-driver

05

valkor-ai/loom

Skill Claude Code

Run gdUnit4 unit tests and parse results into structured output. Use this skill after writing or modifying code to verify correctness via unit tests, when diagnosing test failures, or when writing new test files. Triggers: "run tests", "test fails", "write a test", any gdUnit4/unit test mention. Supports both GDScript…

not rated 1.3k +9 3d ago A SkillSpector: pass 84 tokens original Apache-2.0

foundry-testing

06

PaulRBerg/foundry-template

Skill Codex

Write and debug Foundry tests and Solidity scripts. Use when writing unit, fuzz, fork, or invariant tests, writing bulloak BTT .tree specs (Branching Tree Technique), using cheatcodes, benchmarking gas, measuring coverage, writing deploy scripts, or working in tests/ or script/.

not rated 642 8d ago A 64 tokens original MIT

dart-lang/skills

Skill Claude CodeCodex

Replace the usage of expect and similar functions from package:matcher to package:checks equivalents.

not rated 524 +3 yesterday A Socket: passSnyk: pass 32 tokens copy · 100% BSD-3-Clause

tevm

08

evmts/tevm

Skill Codex

Build, simulate, test, fork, and debug EVM transactions in TypeScript with tevm 1.0.0-rc.151. Use for in-process EVM scripts, typed Solidity imports, lazy mainnet or OP-stack forks, direct account and storage setup, viem-compatible contract actions, Vitest EVM tests, traces, and transaction simulation.

not rated 449 1mo ago A SkillSpector: pass 77 tokens original MIT

bashunit

09

TypedDevs/bashunit

Skill Claude CodeCodex needs its repo

Write and run tests for bash scripts with bashunit. Use when adding or fixing tests for shell code, when a bashunit run fails, or when asked to raise coverage of a bash script. Covers loading the code under test, the assertion catalogue, the fast edit-run loop, and the API traps that produce silently-passing tests.

not rated 436 +1 yesterday A 70 tokens original MIT

write-tests

10

tarlepp/symfony-flex-backend

Skill Claude CodeCodex

Add or update PHPUnit tests using this repository's E2E, functional, integration, and unit test conventions.

not rated 288 today A 25 tokens original MIT

testing

11

udecode/plate-playground-template

Skill Claude CodeCodex

Skill "testing" from udecode/plate-playground-template, covering testing goal, core rules, seam selection, fixtures and assertions and quick reference.

not rated 241 3d ago A SkillSpector: pass 5 tokens original MIT

kevmoo/dash_skills

Skill Claude CodeCodex

Core concepts and best practices for package:test. Covers test, group, lifecycle methods (setUp, tearDown), and configuration (darttest.yaml).

not rated 147 changed yesterday A Socket: passSnyk: passSkillSpector: warn 44 tokens original Apache-2.0

soba-labs/langchain-agent-skills

Skill Claude CodeCodex

Use this skill when you need to test or evaluate LangGraph/LangChain agents: writing unit or integration tests, generating test scaffolds, mocking LLM/tool behavior, running trajectory evaluation (match or LLM-as-judge), running LangSmith dataset evaluations, and comparing two agent versions with A/B-style offline…

not rated 107 2mo ago A SkillSpector: pass 99 tokens original MIT

test-generator

14

AIDotNet/MoYuCode

Skill Claude CodeCodex

A test-writing assistant that creates automated checks for code, including unit, integration, and end-to-end tests. It supports common test tools such as Jest, Vitest, pytest, and xUnit.

not rated 85 8mo ago A 37 tokens original MIT

swift-testing

15

bocato/swift-testing-agent-skill

Skill Claude CodeCodex

Expert guidance on Swift Testing best practices, patterns, and implementation. Use when developers mention: (1) Swift Testing, @Test, #expect, #require, or @Suite, (2) "use Swift Testing" or "modern testing patterns", (3) test doubles, mocks, stubs, spies, or fixtures, (4) unit tests, integration tests, or snapshot…

not rated 81 +1 8mo ago A 124 tokens original MIT

test-writer

16

kivo360/OmoiOS

Skill Claude CodeCodex

Generate comprehensive tests including unit, integration, and property-based tests.

not rated 81 +1 11d ago A 12 tokens original Apache-2.0

paperclip

17

IncomeStreamSurfer/paperclip-surfers

Skill Claude CodeCodex

Interact with the Paperclip control plane API to manage tasks, coordinate with other agents, and follow company governance. Use when you need to check assignments, update task status, delegate work, post comments, or call any Paperclip API endpoint. Do NOT use for the actual domain work itself (writing code, research…

not rated 75 +1 6mo ago A 75 tokens original MIT

flutter-tester

18

Harishwarrior/flutter-claude-skills

Skill Claude CodeCodex

Use when creating, writing, fixing, or reviewing tests in a Flutter project. Covers unit tests, widget tests, integration tests, Riverpod provider testing, and Mockito mocking. Provides Given-When-Then patterns, layer isolation strategies, and test setup for GetIt, SharedPreferences, and FakeDatabase.

not rated 66 3mo ago A Socket: passSnyk: passSkillSpector: pass 65 tokens original MIT

BetterThanTomorrow/calva-backseat-driver

Skill Claude CodeCodex

Testing strategies for Calva Backseat Driver MCP tools. Use when: Testing Backseat Driver, validating tool updates, testing structural editing workflows, verifying REPL evaluation with who-tracking, testing shadow-cljs runtime discovery and targeting, testing output log filtering, testing load-file tool, smoke testing…

not rated 64 19d ago A SkillSpector: pass 106 tokens original MIT

Advance-Technologies-Foundation/clio

Skill Codex

Create, update, and validate custom Creatio Configuration Web Services and their tests. Use when users need to expose custom backend endpoints in Creatio, wire service contracts/implementations, return structured success/error results, or verify endpoints with integration-style and unit tests.

not rated 57 today A 58 tokens

spring-jpa-testing

21

spring-ai-community/spring-testing-skills

Skill Claude CodeCodex

@DataJpaTest requires TestEntityManager + flush()/clear() before assertions — without this, tests read from Hibernate L1 cache and pass falsely. Read before writing any JPA test. Triggers: @DataJpaTest, JpaRepository, TestEntityManager, @ServiceConnection, Testcontainers, @Modifying, Hibernate 6/7…

not rated 52 5mo ago A 96 tokens

radiantlogicinc/fastworkflow

Skill Claude CodeCodex

Build a two-tier conversation benchmark for a fastWorkflow workflow: short single-errand conversations that act as unit tests and reusable blocks, then long real-world tasks of 20-100 steps composed from those blocks. Covers turn and conversation structure, seeding objects with enough structure to sustain a chain…

not rated 52 changed 1mo ago A SkillSpector: pass 161 tokens original Apache-2.0

terraform-test

23

eric861129/SKILLS_All-in-one

Skill Claude CodeCodex

Comprehensive guide for writing and running Terraform tests. Use when creating test files (.tftest.hcl), writing test scenarios with run blocks, validating infrastructure behavior with assertions, mocking providers and data sources, testing module outputs and resource configurations, or troubleshooting Terraform test…

not rated 52 6mo ago A 59 tokens original MIT

kevintsengtw/dotnet-testing-agent-skills

Skill Claude CodeCodex

A guide for advanced TUnit testing in .NET. TUnit is a testing framework; the guide covers tests driven by data, dependency injection, integration tests, retries, time limits, and filtering.

not rated 30 +1 changed 17d ago A SkillSpector: pass 156 tokens original MIT

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