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Found 160 Skills
Vitest 4+ testing with Vite. Use when configuring vitest.config.ts, writing unit/integration/browser tests, implementing mocks with vi.fn/vi.spyOn/vi.mock, setting up V8 or Istanbul coverage, or migrating from Jest or older Vitest workspace setups. Triggers on vitest, vitest.config.ts, vi.mock, browser mode, vitest/browser, projects, setupFiles, and toMatchScreenshot.
Use when nestJS testing with unit tests, integration tests, and e2e tests. Use when building well-tested NestJS applications.
Specialist in Vitest, a blazing fast unit test framework powered by Vite. Focuses on Jest compatibility, in-source testing, and native ESM support.
Write a test strategy covering what to test, coverage targets, and testing pyramid distribution. Use when user says "test plan", "testing strategy", "what should I test", "test coverage", "how to test this", or needs to plan testing for a feature or project before writing tests.