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Vitest migration

Skill alexngai/skill-tree/docs/demo/skills/vitest-migration

Version control and evolution for AI agent skills — versioned storage, dynamic serving/loadouts, multi-agent git sync, and cross-repo federation.

Install
npx -y skills add alexngai/skill-tree --skill vitest-migration

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One thing to look at

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What its author says it does

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Migrate a Jest test suite to Vitest — config, globals, and mock API differences.

SKILL.md

0.6 KB, as published. Nobody here has run it

Migrate Jest → Vitest

  1. Add vitest and create vitest.config.ts (reuse your Vite config if you have one).
  2. Enable globals: true to keep describe/it/expect without imports.
  3. Swap jest.fn() → vi.fn(), jest.mock() → vi.mock(), jest.spyOn → vi.spyOn.
  4. Replace jest.config timers/fake-timers with vi.useFakeTimers().
  5. Run vitest run in CI; drop ts-jest once green.

Keep looking

Skills are one crate of 328,083. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.