Error running jest tests with v0.13.1

[jjhamshaw]

(I've created a repo with the issue, so it can be reproduced: https://github.com/jjhamshaw/colyseus-example)

Steps to reproduce

• create a fresh create-react-app
• install colyseus@0.13.1
• create a new instance of a Room in a test
• run yarn test

I'm getting this error with from nanoEvents (there's a test in the example repo to show this here):

TypeError: nanoevents_1.createNanoEvents is not a function

      2 |
      3 | test("this should work", () => {
    > 4 |   const room = new Room("name");
        |                ^
      5 |   expect(room).toBeDefined();
      6 | });
      7 |

note: colyseus@0.13.0 works as expected

[endel]

Thanks for reporting @jjhamshaw, I found this other issue that's related to what you're describing here: ai/nanoevents#45

Not really sure what we can do to fix this. It seems to me that the entire Node.js / NPM ecosystem is moving towards cjs / module pattern and the existing tooling is not keeping up with that. Here's a similar issue with a different dependency and environment #64

I think colyseus.js should provide alternative entry points on its package.json for better integration with modern browser/node/cjs/whatever environments.

[jjhamshaw]

@endel thanks for the quick reply (unlike mine...).

Got it, the issue is clearly not with colyseus but with tooling i.e. jest. I don't actually need to create an instance of a Room now, instead I'm just mocking it - so kind of a workaround!