Description

vp test fails on projects using Yarn PnP (Plug'n'Play) mode. The bundled config file cannot resolve the vite-plus module because Yarn PnP does not use a traditional node_modules layout.

Error

Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'vite-plus' imported from vitest.config.mts.timestamp-xxx.mjs

The full error from vp test run:

vitest.config.mts (1:468) Warning: Could not resolve 'vite-plus' in vitest.config.mts

failed to load config from vitest.config.mts

⎯⎯⎯⎯⎯ Startup Error ⎯⎯⎯⎯⎯
Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'vite-plus' imported from vitest.config.mts.timestamp-xxx.mjs
    at Object.getPackageJSONURL (node:internal/modules/package_json_reader:301:9)
    at packageResolve (node:internal/modules/esm/resolve:768:81)
    ...

Reproduction

• Repository: https://github.com/fengmk2/vitest-extension-1.42.0-fail-yarn
• Branch: vp-migrate-yarn-pnp
• PR with CI failure: chore: vite+ migrate on yarn pnp fengmk2/vitest-extension-1.42.0-fail-yarn#1

Steps:

1. Clone the repo and checkout vp-migrate-yarn-pnp
2. Run vp install
3. Run vp test run

Environment

• Vite+ version: v0.0.0-g52709db6.20260226-1136
• Yarn version: 4.12.0
• Node.js: 24.14.0
• OS: Ubuntu (GitHub Actions) / macOS

Config

vitest.config.mts:

import { defineConfig } from 'vite-plus';

package.json (relevant parts):

{
  "packageManager": "yarn@4.12.0",
  "devDependencies": {
    "vite-plus": "catalog:"
  },
  "resolutions": {
    "vite": "npm:@voidzero-dev/vite-plus-core@latest",
    "vitest": "npm:@voidzero-dev/vite-plus-test@latest"
  }
}

The project uses Yarn PnP (.pnp.cjs present, nodeLinker not set to node-modules).

Expected Behavior

vp test should work with Yarn PnP projects, resolving vite-plus through Yarn's PnP resolution.