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Found 49 Skills
Senior Frontend QA Engineer with 10+ years JavaScript/TypeScript testing experience. Use when writing unit tests for React components, creating integration tests with React Testing Library, testing custom hooks, mocking APIs, or following TDD for frontend.
This skill should be used when the user asks to "write tests", "add tests", "test coverage", "run tests", "debug failing tests", "mock functions", or mentions Vitest, unit tests, component tests, test-driven development, or testing utilities. Provides comprehensive Vitest v4 guidance for TypeScript React/Next.js projects.
Set up Vitest testing environment for Next.js projects
Initialize Playwright end-to-end testing for Next.js and React projects. Sets up configuration, creates example tests, and integrates with existing CI/CD. Use when adding E2E tests to a frontend project.
Jest with TypeScript - Industry standard testing framework with 70% market share, mature ecosystem, React Testing Library integration
Write tests using Vitest and React Testing Library. Use when creating unit tests, component tests, integration tests, or mocking dependencies. Activates for test file creation, mock patterns, coverage, and testing best practices.
Implement comprehensive frontend testing using Jest, Vitest, React Testing Library, and Cypress. Use when building robust test suites for UI and integration tests.
Use when writing tests for next-safe-action actions or hooks -- Vitest patterns for testing server actions directly, middleware behavior, hooks with React Testing Library, validation errors, and server errors
Use when feature flag tests fail, flags need updating, understanding @gate pragmas, debugging channel-specific test failures, or adding new flags to React.
React Testing Library 및 Vitest 기반 테스팅 모범 관례. 다음 상황에서 사용: (1) .test.tsx, .test.ts, .spec.tsx, .spec.ts 파일 작업 시, (2) 컴포넌트 테스트 작성 또는 리팩토링 시, (3) 'test', 'testing', 'vitest', 'RTL', 'getByRole', 'userEvent', 'waitFor', 'expect' 키워드 포함 작업 시, (4) 비동기 로직 또는 사용자 상호작용 테스트 작성 시
Write and run tests for JS/TS projects. Handles unit tests with Vitest and React Testing Library directly. Delegates E2E and browser testing to /webapp-testing. Use when writing tests, adding coverage, debugging test failures, or running test suites.
Provides before/after patterns for migrating test files to React 19 compatibility, including act() imports, Simulate removal, and StrictMode call count changes.