Vitest workspaces not properly supported by defineVitestConfig

[TheDutchCoder]

Environment

------------------------------
- Operating System: Darwin
- Node Version:     v20.13.0
- Nuxt Version:     3.14.1592
- CLI Version:      3.16.0
- Nitro Version:    2.10.4
- Package Manager:  [email protected]
- Builder:          -
- User Config:      default
- Runtime Modules:  @nuxt/[email protected], [email protected], @nuxtjs/[email protected], [email protected], @nuxtjs/[email protected], @nuxtjs/[email protected], @vueuse/[email protected], @sidebase/[email protected], @vesp/[email protected]
- Build Modules:    -
------------------------------

Reproduction

When using a vitest workspace, vitest complains that it can't resolve the config files, this is due to defineVitestConfig.

> vitest

failed to load config from /Users/reinierkaper/rvezy/rvezy-web-client/src/tests/unit/vitest.config.ts

Describe the bug

I think the defineVitestConfig wrapper conflicts with what vitest expects back in a workspace configuration file.
Everything works fine when the tests are ran directly with a config file reference, just not in a workspace.

Additional context

No response

Logs

[gaisinskii]

I was going to raise a similar issue, but since this one exists I will ask my question here.

TLDR:

1. Open https://stackblitz.com/~/github.com/gaisinskii/nuxt-split-tests-issue
2. Wait for deps installation
3. Run pnpm run test:unit or pnpm run test:e2e
4. Console says No test files found. You can change the file name pattern by pressing "p"

The issue:

My colleagues and I want to separate unit & e2e tests and from what I understand the only way of doing it is to use vitest workspaces. I've tried different configurations and the only way it worked was to replace defineVitestConfig with plain defineConfig.