node does not exit

i use prom-client version 12.0.0.

when i run jest --detectOpenHandles i get

Jest has detected the following 1 open handle potentially keeping Jest from exiting:

  ●  ELDHISTOGRAM

      3 | const client = require("prom-client");
      4 | const prefix = "name_";
    > 5 | client.collectDefaultMetrics({ prefix });

following not returning an interval, i saw the docs update. also looked at the tests and saw that indeed clearInterval() is called.

could one please shed the light on how should prom-client be closeed properly?

[sam-github]

It should be unrefed, best to avoid exit handlers, except it doesn’t appear to have a documented unref. It might be there anyway, I’ll go look.

subject should be fixed, “exists” was meant to be “exit”, I think.

[micaelmbagira]

@SimenB PR is open https://github.com/facebook/jest/pull/11123