Importing @web/test-runner specific paths does not work

[Pajn]

The web test runner server have "magic" paths, for example /__web-dev-server__web-socket.js that is imported by @web/test-runner-commands

Trying to use @web/test-runner-commands result in this error during "Installing dependencies"

[snowpack] node_modules/@web/test-runner-commands/browser/commands.mjs
   Module "/__web-dev-server__web-socket.js" could not be resolved by Snowpack (Is it installed?).

[Pajn]

I've tried to work around it by creating a snowpack plugin to transform these imports but it seems like the snowpack plugins can't transform files in node_modules

[Pajn]

I found a solution, setting it as an external package in the snowpack config works:

  installOptions: {
    // externalPackage: ["/__web-dev-server__web-socket.js"],
  },

I'll submit a PR to have @snowpack/web-test-runner-plugin do that automatically

[LarsDenBakker]

There is code that guards against this in https://github.com/snowpackjs/snowpack/blob/main/plugins/web-test-runner-plugin/plugin.js#L36 I wonder why it's not working here?

[Pajn]

That prevents those files themselves from being loaded but not the files that import them