Ability to run Node for tests in the directory of the script

[nafg]

I'm trying to do something similar to scalajs-bundler in https://github.com/nafg/mill-bundler. One issue I'm hitting is that it needs to generate a package.json and npm install somewhere under out/, but IIUC because it's running Node from the base directory it won't see node_modules/.

This is even worse for JsDom, because with JsEnvConfig.NodeJs I can override fastLinkJSTest to inject a bundling step, producing a script that doesn't need node_modules anymore. But IIRC JsDom will require("jsdom") outside the script.

[nafg]

On second thought...

I edited the title, because maybe the solution is not to have a new setting or parameter to pass in the working directory. Maybe it should automatically use the script's location as the working directory.

Although, I guess most people currently maintain a package.json by hand in the root directory and manually npm install. So I guess for them tests should run in the base directory. So maybe it does have to be a setting or parameter?

[lefou]

Typically in Mill, tests run in a forked process and support the setting of forkWorkingDir. Unfortunately, ScalaJSModule currently does not support this setting.

• Support forkWorkingDir in ScalaJSModule (run, test, ...) #1036

[lefou]

Duplicate of #1036