Requires: file-read, terminal (test runner). No network access needed.

Related skills: vitest-test-best-practices/SKILL.md, vitest-test-hook-best-practices/SKILL.md

Vitest Test Mock Best Practices

Use When

• Writing or updating tests whose main challenge is mocking dependencies.
• Choosing between vi.mock, vi.spyOn, vi.doMock, or helper-based stubs.
• Reviewing whether a test's mock seam is appropriate.

Full reference

vitest-mock — load on demand for the canonical mock patterns and deep-link targets below.