Unit Testing

Best practices for creating and updating Claude Code skills including YAML frontmatter structure, description patterns for discoverability, content organization, progressive disclosure, and testing strategies. Use when creating new skills or updating existing skills to follow proven patterns.

⚡ PRIMARY TOOL for: 'what's tested', 'find test coverage', 'audit test quality', 'missing tests', 'edge cases', 'test patterns'. Uses claudemem v0.3.0 AST with callers analysis for test discovery. GREP/FIND/GLOB ARE FORBIDDEN.

Use when starting work on an unfamiliar project or needing to understand a codebase - performs comprehensive analysis discovering architecture, patterns, dependencies, testing coverage, and improvement opportunities. Do NOT use on projects you already know well or for targeted questions about specific files - use direct exploration instead for focused queries.

Write focused, strategic tests for core user flows with behavior-based testing, clear naming, and proper mocking of external dependencies. Use this skill when writing unit tests, integration tests, or end-to-end tests. When working on files in tests/, __tests__/, spec/, or *.test.ts, *.spec.ts files. When deciding what to test during feature development. When naming test cases descriptively. When mocking databases, APIs, or external services. When focusing on testing behavior rather than implementation details.

Generate Vitest configuration files for fast unit testing of JavaScript/TypeScript projects. Triggers on "create vitest config", "generate vitest configuration", "vitest setup", "unit test config".

Generate comprehensive pytest test suites for CasareRPA components, including nodes, controllers, use cases, and domain entities. Use when: creating new tests, testing nodes, controller tests, use case tests, domain entity tests, test coverage needed, pytest test generation.

Implement Advent of Code solutions using Test-Driven Development. Generates test cases from puzzle examples, writes failing tests first, implements solutions incrementally, and iterates until all tests pass. Use when solving AoC puzzles, implementing solutions with TDD, or when user mentions test-driven development or writing tests.

智能测试代码生成工具，支持单元测试、集成测试、E2E测试的快速创建。支持Python(pytest/unittest)、JavaScript(Jest/Mocha)、Java(JUnit)、Go(testing)等主流测试框架。适用于生成测试、写测试、测试用例、单元测试、集成测试等场景。

Use to regression test the full OODA loop. Validates phase transitions,artifact handoffs, and resumption. Maintainer tooling - invoke explicitlywith "use loop-test to verify the system".

Decomposes requirements into executable tasks and coordinates domain orchestrators (frontend, backend, data, test, devops). Use when receiving PRDs, user requirements, or feature requests that span multiple domains. Acts as CEO of the AI development system.

Testing strategy and test pyramid for EFT-Tracker. Guides when to write unit, integration, E2E, or smoke tests. Includes MSW patterns, Playwright best practices, and contract testing. Activates when user mentions: test, unit test, integration test, E2E, Playwright, MSW, coverage, mock, test pyramid, vitest.

This skill should be used when starting any feature or bug fix, exploring unfamiliar code, making commits or PRs, or when unsure which agent or approach to use. Covers agent routing, git discipline, testing workflow, and proactive quality practices.

Provides a comprehensive guide and templates for creating integration tests for FastAPI applications. Use this skill when you need to set up or write integration tests involving a database, authentication, file uploads, or error handling. It includes patterns for pytest fixtures, test client usage, and test data factories.

Build React components using @fpkit/acss library patterns. Scaffolds complete component structures (tsx, types, scss, stories, tests), validates CSS variables follow naming conventions (--component-property with rem units), enforces TypeScript patterns, accessibility standards (WCAG 2.1 AA), and Storybook documentation. Use when building new components, generating boilerplate, or refactoring to use fpkit primitives. Includes automation scripts, reference guides, and templates.

Creates a new domain following DDD architecture pattern with all 4 layers (Repository, API Client, Hooks, Components), boilerplate files, and test stubs. Use when starting a new feature domain.

Testing strategies and best practices

Comprehensive guide for Shopify CLI app development lifecycle. Use when working with Shopify apps - initializing projects, managing TOML configurations, running local development (shopify app dev), deploying extensions, setting up multi-environment workflows (dev/staging/prod), or automating CI/CD pipelines. Includes helper scripts for common tasks like environment setup, config validation, webhook testing, and deployment automation.

Returns a simple 'Hello World' message. Use this tool for testing MCP connection.

Visual regression testing with Playwright and Percy. Use when implementing screenshot-based testing.

Automatically runs project validation commands (linters, type checkers, tests) after file edits and blocks commits on any failure. Reads validation commands from CLAUDE.md or auto-detects from project type. Enforces strict quality gates to catch issues early. (project)