Vitest browser mode provider dependencies

[limzykenneth]

Describe the bug

When setting up vitest browser mode with vp (specifically with playwright, I haven't tried other providers), the migration script change the import to import { playwright } from "vite-plus/test/browser-playwright"; and removed the relevant vitest dependencies including @vitest/browser-playwright. However, in this case, playwright is no longer included as a peer dependency and so it is missing from the resolved dependency tree.

I can get past this by manually installing playwright as a dependency but I'll get a warning as below:

Loaded  vitest@0.1.14  and  @vitest/browser@4.1.1 .
Running mixed versions is not supported and may lead into bugs
Update your dependencies and make sure the versions match.

It seems to be an oversight or there needs to be some clearer documentation around how the dependency should be handled here.

Reproduction

n/a

Steps to reproduce

No response

System Info

VITE+ - The Unified Toolchain for the Web

Environment:
  Version  24.14.1
  Source   lts

Tool Paths:
  node  /home/limzykenneth/.vite-plus/js_runtime/node/24.14.1/bin/node
  npm   /home/limzykenneth/.vite-plus/js_runtime/node/24.14.1/bin/npm
  npx   /home/limzykenneth/.vite-plus/js_runtime/node/24.14.1/bin/npx




VITE+ - The Unified Toolchain for the Web

vp v0.1.14

Local vite-plus:
  vite-plus  v0.1.14

Tools:
  vite             v8.0.2
  rolldown         v1.0.0-rc.11
  vitest           v4.1.1
  oxfmt            v0.42.0
  oxlint           v1.57.0
  oxlint-tsgolint  v0.17.3
  tsdown           v0.21.4

Environment:
  Package manager  npm v11.12.1
  Node.js          v24.14.1

Used Package Manager

npm

Logs

Validations

• Read the Contributing Guidelines.
• Check that there isn't already an issue for the same bug.
• Confirm this is a Vite+ issue and not an upstream issue (Vite, Vitest, tsdown, Rolldown, or Oxc).
• The provided reproduction is a minimal reproducible example.

[fengmk2]

@limzykenneth Could you provide a reproducible repo? This repo should be able to reproduce the issue you described after running vp migrate, so I can quickly investigate and fix it.

[limzykenneth]

@fengmk2 Here you go: https://github.com/limzykenneth/vp-playwright-repro

Let me know if you need any more info.

[fengmk2]

@fengmk2 Here you go: https://github.com/limzykenneth/vp-playwright-repro

Let me know if you need any more info.

@limzykenneth I see this repo has already migrated to vite+? And I don't see playwright being used?

[limzykenneth]

@fengmk2 It isn't specifically about migration, it is using the playwright export from vite plus does not include playwright as a peer dependency and when running vp test it will fail: https://github.com/limzykenneth/vp-playwright-repro/blob/main/vite.config.ts#L2

[fengmk2]

@limzykenneth Can you provide a repo that uses vitest and runs normally without migrating to Vite+? This way I can do comparative verification.

[limzykenneth]

@fengmk2 It is just the minimal setup with Vitest browser mode following Vitest's documentation, example here: https://github.com/limzykenneth/vitest-playwright-repro

[fengmk2]

@limzykenneth I understand the issue now. You can ignore the warning log "Loaded vitest@0.1.14 and @vitest/browser@4.1.1" for now, and we'll find a way to handle it.

There are 2 things that need to be addressed:

• When migrating @vitest/browser-playwright, playwright needs to be automatically added to devDeps
• Eliminate the vitest error warning log