This is weird. I don't know why this is suddenly failing. As far as I can see from the eslint docs, this might be caused by the extends: wikimedia from the .eslintrc.json file, which applies https://github.com/wikimedia/eslint-config-wikimedia. But that has been sitting there for a while without any issues, so I'm not sure why this is failing now.

Change 467296 had a related patch set uploaded (by MarcoAurelio; owner: MarcoAurelio):
[mediawiki/extensions/WikimediaMessages@master] Disable 'module' in .eslintrc.json

https://gerrit.wikimedia.org/r/467296

Change 467296 abandoned by MarcoAurelio:
Disable 'module' in .eslintrc.json

https://gerrit.wikimedia.org/r/467296

npm ERR! Failed at the @ test script 'grunt test'.
11:41:34 npm ERR! Make sure you have the latest version of node.js and npm installed.
11:41:34 npm ERR! If you do, this is most likely a problem with the  package,
11:41:34 npm ERR! not with npm itself.
11:41:34 npm ERR! Tell the author that this fails on your system:
11:41:34 npm ERR!     grunt test
11:41:34 npm ERR! You can get information on how to open an issue for this project with:
11:41:34 npm ERR!     npm bugs 
11:41:34 npm ERR! Or if that isn't available, you can get their info via:
11:41:34 npm ERR!     npm owner ls 
11:41:34 npm ERR! There is likely additional logging output above.
11:41:34 
11:41:34 npm ERR! Please include the following file with any support request:
11:41:34 npm ERR!     /src/npm-debug.log

CI issue?

This made the test pass, but I'm not sure if this is the desired solution? Please advice.

Change 467336 had a related patch set uploaded (by Jforrester; owner: MarcoAurelio):
[mediawiki/extensions/WikimediaMessages@master] build: Remind eslint that Gruntfile.js runs inside node

https://gerrit.wikimedia.org/r/467336

Change 467336 merged by jenkins-bot:
[mediawiki/extensions/WikimediaMessages@master] build: Remind eslint that Gruntfile.js runs inside node

https://gerrit.wikimedia.org/r/467336