Unit Testing

Use when jest testing patterns including unit tests, mocks, spies, snapshots, and assertion techniques for comprehensive test coverage.

Use when jest configuration, setup files, module resolution, and project organization for optimal testing environments.

Validates audio plugins through automated tests, pluginval, or manual DAW testing. Use for MANUAL testing via /test command. Note - Automatic validation now built into workflow (validation-agent runs after each stage). This skill is for manual testing only, after bug fixes, or when user mentions test, validate, validation, pluginval, stability, automated tests, run tests, check plugin, or quality assurance.

Use when testing Effect code including Effect.gen in tests, test layers, mocking services, and testing error scenarios. Use for writing tests for Effect applications.

Use when restructuring code to improve quality without changing external behavior. Emphasizes safety through tests and incremental changes.

Writing effective step definitions and organizing test code

Use when implementing GraphQL resolvers with resolver functions, context management, DataLoader batching, error handling, authentication, and testing strategies.

Use when creating page objects or refactoring Playwright tests for better maintainability with Page Object Model patterns.

Use when jUnit extensions including custom extensions, rules, and conditional test execution.

Use when testing React Native Web applications. Provides patterns for Jest, React Native Testing Library, component testing, and web-specific testing strategies.

Create REST/GraphQL API endpoint with validation, error handling, and tests. Auto-invoke when user says "add endpoint", "create API", "new route", or "add route".

Generate frontend component tests (unit, snapshot, e2e). Auto-invoke when user says "test this component", "write component test", or "add component test".

Setup visual regression testing with Storybook stories, configuration, and CI/CD workflows. Supports Chromatic, Percy, BackstopJS. Auto-invoke when user says "set up visual regression", "add Chromatic tests", "add screenshot testing", or "set up Percy".

Automatically manage and use nREPL servers to run/evaluate Clojure code and tests.

Create React/Vue component with TypeScript, tests, and styles. Auto-invoke when user says "create component", "add component", "new component", or "build component".

Generate backend tests (unit, integration, mocks). Auto-invoke when user says "write test for", "add test", "test this", or "create test".

Update project CLAUDE.md to latest Navigator version, preserving customizations. Use when user says "update CLAUDE.md", "migrate to v3", or when detecting outdated Navigator configuration.

Your approach to handling testing coverage. Use this skill when working on files where testing coverage comes into play.

Your approach to handling testing test writing. Use this skill when working on files where testing test writing comes into play.

Your approach to handling testing unit tests. Use this skill when working on files where testing unit tests comes into play.