jest: Tests not running

I went through getting started but can’t get jest to work. I use node v6.9.1, npm v3.10.8 and jest v17.0.3. I also tried --no-cache and --debug but nothing changes. I even moved test to __tests__ dir and renamed it accordingly.

Do you want to request a feature or report a bug?

What is the current behavior?

no output, seems like no tests are being ran

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal repository on GitHub that we can npm install and npm test.

https://github.com/zigomir/jester

What is the expected behavior?

Test running and passing.

Run Jest again with --debug and provide the full configuration it prints. Please mention your node and npm version and operating system.

Still nothing.

About this issue

Original URL
State: closed
Created 8 years ago
Comments: 19 (3 by maintainers)

Commits related to this issue

Attempt to run Cors functional tests with watchman disabled. According to https://github.com/facebook/jest/issues/2219, jest will not run tests if watchman is installed. It is not entirely clear if t... — committed to dotnet/aspnetcore by pranavkm 5 years ago
Attempt to run Cors functional tests with watchman disabled. (#7076) According to https://github.com/facebook/jest/issues/2219, jest will not run tests if watchman is installed. It is not entirely c... — committed to dotnet/aspnetcore by pranavkm 5 years ago

Most upvoted comments

I figured out jest won’t run if i have watchman installed. As soon as I remove it with brew uninstall watchman it works.

I was able to find this out running node_modules/jest/bin/jest.js instead of npm test and iTerm2 printed out watchman in tab title 😃

Can you please check if this is the case, I see https://github.com/facebook/watchman is Facebook’s repo too 😉

+72

zigomir on Dec 6, 2016

An easy solution to run the tests is with --no-watchman parameter. E.g. yarn test --u --no-watchman

+13

babakansari on Oct 26, 2017

Another Mac OS user here that got bit by this issue, uninstalling watchman allows Jest to run tests.

+10

ryanlindsey on Feb 15, 2017

Thanks @cpojer! Yeah this is certainly related to my issue. So stopping watchman with launchctl unload -F ~/Library/LaunchAgents/com.github.facebook.watchman.plist or brew uninstall watchman resolves issue for me. This works for me, glad to be able to use jest now 😃

zigomir on Dec 6, 2016

I have watchman installed too (v4.5.0). Probably there was an issue with the version you’ve been using. Would be great if you installed newer version and try it once more 😃

thymikee on Dec 6, 2016