Would like to see a test along the lines of, a JS file which imports the resulting JS, runs the exported methods against a sample policy, and asserts on the resulting strings.

(This will require adding the setup-node action, which can hardcode 20 rather than bothering testing against multiple versions.)

@bakkot What if I did this as part of the csp validator website? I think someone mentioned combing the repositories so it might make sense to do that in the JS ecosystem instead of having to implement something here.