vitest-docs

name	vitest-docs
description	Vitest documentation — next-generation testing framework powered by Vite. Covers test API (describe, test, expect, vi, hooks), mocking (modules, functions, classes, timers, dates, file system, globals, network requests), snapshot testing, coverage (v8/istanbul), browser testing (Playwright/WebDriverIO, component testing for React/Vue/Svelte, visual regression, trace view), configuration reference (120+ options), CLI commands, environments (node/jsdom/happy-dom/edge-runtime), filtering/tags, projects/workspaces, parallelism, reporters, debugging, IDE integration, type testing, in-source testing, migration from Jest, and performance profiling. USE THIS SKILL WHEN the user asks about Vitest configuration, test writing, mocking, coverage, browser testing, or migration from Jest.
version	0.1.0

Vitest Documentation

Official docs for Vitest — a blazing-fast unit test framework powered by Vite.

CRITICAL: grep references/ for keywords before answering.

Reference Index (191 docs)

API Reference

• references/api/test.md — test(), it(), test.each(), test.skip(), test.only(), test.todo()
• references/api/describe.md — describe(), describe.each(), describe.skip()
• references/api/expect.md — Expect API (matchers: toBe, toEqual, toMatch, toThrow, etc.)
• references/api/assert.md — Chai assert API
• references/api/vi.md — vi utility (vi.fn, vi.mock, vi.spyOn, vi.useFakeTimers, etc.)
• references/api/mock.md — Mock functions API
• references/api/hooks.md — beforeAll, afterAll, beforeEach, afterEach
• references/api/assert-type.md — Type assertion API
• references/api/expect-typeof.md — expectTypeOf API

API — Browser Testing

• references/api/browser/locators.md — Browser locators (getByRole, getByText, etc.)
• references/api/browser/interactivity.md — User interactions (click, fill, etc.)
• references/api/browser/assertions.md — Browser-specific assertions
• references/api/browser/commands.md — Custom browser commands
• references/api/browser/context.md — Browser context
• references/api/browser/react.md vue.md svelte.md — Component testing

API — Advanced

• references/api/advanced/runner.md — Custom test runner
• references/api/advanced/reporters.md — Reporter API
• references/api/advanced/plugin.md — Vitest plugin API
• references/api/advanced/vitest.md — Vitest node API

Guide (50+ docs)

• references/guide/index.md — Getting started
• references/guide/features.md — Feature overview
• references/guide/mocking.md — Mocking overview
• references/guide/mocking/modules.md — Module mocking
• references/guide/mocking/functions.md — Function mocking
• references/guide/mocking/timers.md — Fake timers
• references/guide/mocking/classes.md — Class mocking
• references/guide/mocking/requests.md — Network request mocking
• references/guide/mocking/file-system.md — File system mocking
• references/guide/snapshot.md — Snapshot testing
• references/guide/coverage.md — Code coverage
• references/guide/environment.md — Test environments
• references/guide/debugging.md — Debugging tests
• references/guide/filtering.md — Test filtering
• references/guide/test-tags.md — Test tags
• references/guide/parallelism.md — Parallel execution
• references/guide/projects.md — Projects & workspaces
• references/guide/migration.md — Migration from Jest
• references/guide/ide.md — IDE integration (VS Code)
• references/guide/cli.md — CLI reference
• references/guide/improving-performance.md — Performance optimization
• references/guide/testing-types.md — Type testing
• references/guide/in-source.md — In-source testing
• references/guide/browser/ — Browser testing guide (6 docs)

Configuration (120+ docs)

• references/config/index.md — Configuration overview
• references/config/ — Individual config options (pool, coverage, environment, globals, setupfiles, reporters, browser/, etc.)

Blog

• references/blog/vitest-4.md — Vitest 4.0 release
• references/blog/vitest-3.md — Vitest 3.0 release