Jest freezing after tests run in Node 11

[jcubic]

🐛 Bug Report

I have normal quite big test file that work fine in node 10 but is freezing in 11 after printing:

Ran all test suites.

From what I've checked all my setTimeouts return a promises or have async done() call.

Found this in Travis here is link to broken build:
https://travis-ci.org/jcubic/jquery.terminal/builds/445853587

To Reproduce

on Node 11:

git clone https://github.com/jcubic/jquery.terminal.git
cd jquery.terminal
npm install
make test

make test is running this command:

JEST=./node_modules/.bin/jest
test:
	$(JEST) --coverage --testMatch '**/__tests__/*.spec.js'

no config file

Expected behavior

test finish and script exits

Link to repl or repo (highly encouraged)

Will try to make smaller repro

Run npx envinfo --preset jest

npx: zainstalowano 1 w 1.564s

  System:
    OS: Linux 4.18 Fedora 27 (Twenty Seven) 27 (Twenty Seven)
    CPU: x64 Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
  Binaries:
    Node: 11.0.0 - ~/.nvm/versions/node/v11.0.0/bin/node
    Yarn: 1.10.1 - /usr/bin/yarn
    npm: 6.4.1 - ~/.nvm/versions/node/v11.0.0/bin/npm
  npmPackages:
    jest: ^23.6.0 => 23.6.0 

[SimenB]

I get the same hanging, but a reduced example would be great 🙂

[jcubic]

After disable some test I've found issue in this snippet in my code (not test file):

var x = next.offset().top - 50;
$('html,body').animate({scrollTop: x}, 500);

x was NaN but I've got the same result when I have 0 instead of x, the problem is that this one line If I comment it out and run full test it still freezing, I have limited number of tests (one fdescribe and few xdescribe inside) and toggling this line fix the problem. So maybe there are more issues with Node 11. Will keep try to find other issues and keep you posted.

[jcubic]

I've also found issue with attr('scrollTop') and .scrollTop() functions but the problem may be somewhere in setTimeout function in Node 11 because I've run jest in debug mode and when I paused in debugger I got timers.js file, I've reported the issue to Node will see what they have to say about this issue.

[jcubic]

@SimenB do you use setTimeout in your code that's freezing?

[jcubic]

The issues seems resolved and the fix will be in Node v11.1.0, I would keep this open until it's fixed upstream or you can close if you think it would be better, but someone may report same issue.

[SimenB]

@jcubic I meant that your reproduction also froze for me, I don't have any separate project showing the same error.

If it's a bug in node slated for a release, I'll close this. If it actually is jest's fault somehow, happy to reopen 🙂

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