Support vitest.rootPath option

[mizdra]

Is your feature request related to a problem? Please describe.
I want to use this extension even in cases where vitest.config.ts is not directly under the workspace root directory.

For example, imagine a workspace with the following directory structure.

workspace-root/
├ .github/
├ backend/
├ ui/
│ ├ node_modules/
│ ├ src/
│ │ ├ index.ts
│ │ └ index.test.ts
│ ├ package.json
│ └ vitest.config.ts
└ terraform/

In this workspace, backend, frontend, and IaC code are clearly separated by directory. vitest is used only for frontend code, so vitest.config.ts is under ui/ directory. Therefore, the extension must run vitest with ui/ directory as the current directory, not the workspace root directory.

However, this extension does not have an option to change the current directory where vitest runs.

Describe the solution you'd like
Add the vitest.rootPath option; vscode-jest has a similar option: https://github.com/jest-community/vscode-jest#rootpath

Describe alternatives you've considered
Nothing.

Additional context
Nothing.

[eomeara]

I have same problem and same desired fix.

[sheremet-va]

This should be fixed in pre-release 0.5.0 and higher. Note that the extension now requires Vitest 1.4.0 or higher.

The extension now automatically finds the config and uses it as the working directory. We do not provide any API to change that at the moment.