This should fail since the callback is never run (hangingFetchData never resolves). From the linked jest doc: "If done() is never called, the test will fail (with timeout error), which is what you want to happen."

Oh I see, if done is present, then we should use that to check. We would also need a timeout too. I guess whatever Jest is (10 secs?). Yeah we do not currently look for a callback parameter I welcome PRs or I can do it, whichever you prefer, I like the idea.

Closing this comment thread. Main thread is "createSuite"

What are you expecting here? You are not calling the resolve function, so the 1st await will hang. Are you hoping for a default global timeout for tests? E.g. 30 seconds?

Yes. I think a global default timer would be good, like 30 seconds. I'll try to code it up. Hanging should return an error message, IMO. Does Jest normally do that?

Closing since the main comment thread is in another cell.

We would want a timeout at "await tests[name]();" To detect if a done parameter is present on test[name] https://stackoverflow.com/questions/45149744/how-does-jests-callback-testing-actually-work

Let me try to make the edit. I might not be able to finish it, since I'm a little iffy on Jest.

I couldn't get the ".length" method to work. I might not be calling it on the right object. My understanding of Jest is limited. I edited this item at the comment: // MARKER: LOOKHERE-ASYNC-LENGTH Maybe you can finish it up? I will learn a lot.

((foo, bar) => {}).length returns 2 for me. Thanks for the your contribution I will work on it more today

Awesome I finished it. Thanks for the feature requests and contribution. Its much better for it!

If you create a PR, add yourself as a contributor and what you did and when. Usually I put a change log in my notebooks so it would be useful to add that now.

I'd be happy to, but small problem. I thought the "SUGGESTION" option was the ObservableHQ way of doing Pull Requests (PR). I included the link with the "#anchor". I googled OHQ and pull request, but didn't figure it out. If you tell me what to click, I'll be happy to click it. This is what I see: https://imgur.com/rVDv1Zo

yeah sorry, suggestion is the right term for "PR"