Watch mode stopped working on macOS Sierra #1767
Description
This is a bug that seems to happen ever since I've updated to Sierra.
Whenever I want to run Jest in --watch mode it crashes:
$ jest --watch
2016-09-22 10:49 node[79167] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22)
2016-09-22 10:49 node[79167] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22)
2016-09-22 10:49 node[79167] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22)
events.js:160
throw er; // Unhandled 'error' event
^
Error: Error watching file for changes: EMFILE
at exports._errnoException (util.js:1036:11)
at FSEvent.FSWatcher._handle.onchange (fs.js:1406:11)Tried reinstalling the node modules, checking for any updates and anything. I can't seem to reproduce it on a new project but on the other hand even if I just run an empty test suite with --testPathPattern it still crashes, so I'm guessing it's a dependency conflict somewhere. I don't have any setup files or anything, it's literally running an empty file and crashing.
I don't get any more output with --debug so not sure what else to provide to help. This does not happen with --watchman
$ node --version && npm --version && jest --version
v6.6.0
3.10.8
v15.1.1