Monorepo Projects in Vitest
From the Vitest cheat sheet · Test Projects · verified Nov 2026
Monorepo Projects
Point Vitest at every package in a monorepo and configure each with defineProject
typescript
// vitest.config.ts at the repo root
export default defineConfig({
test: {
projects: ['packages/*'],
},
})💡 Use defineProject in package configs for project-safe typing
📌 Referenced config files don't inherit the root config
🔍 process.cwd() stays at the root even inside a project
⚡ test.projects replaced the old vitest.workspace file (3.2+)
projectsmonorepodefineProject
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