Vitest Testing

Use the tdd skill when the task is a logic change or bug fix that should start with a failing test. This skill covers Vitest-specific test shape and review rules.

Setup

• Check vitest.config.* before assuming globals are enabled.
• If globals are enabled, use describe, it, expect, vi, beforeEach, and assert directly without importing them.
• If globals are not enabled, import only the Vitest APIs used by the file.
• Avoid await import() and other dynamic imports in tests unless the behaviour under test is dynamic loading.
• Use vi.stubEnv() instead of mutating process.env directly.

Readability