So right now I have a test suite written in Python that tests things in N different language-specific implementations. I want to write less Python, and be able to specify features in a language agnostic way.

Stil too much work? Any alternatives?

It's XML with the < and > replaced with &lt; and &gt; respectively, inside a SOAP envelope.

I still live in the US in a state that went Trump. 🤷‍♂️

So, an obvious alternative here is adding NODE_PATH support for ESM to Node.js 😂

NODE_PATH would make this easy, since i'd just make sure the correct version of the tested library is first on the path.

1 is a pain because of constantly changing tested modules. dynamic solves this, but i'd need to ensure i restore files correctly.

2 isn't great since failing tests could leave symlinks lying around.

3 is a non-starter, since i'm testing that i don't break static imports.

1. rewrite the file for each test (statically or dynamically)
2. symlink into a local node_modules
3. dynamic import

I can't think of anything else, without NODE_PATH or a loader doing similar work.