yarn test issue

[RaulTsc]

Running yarn test gives

Determining test suites to run...2017-01-24 18:57 node[11695] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2
d_register_rpc() => (null) (-22)
2017-01-24 18:57 node[11695] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22)
2017-01-24 18:57 node[11695] (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:1022:11)
    at FSEvent.FSWatcher._handle.onchange (fs.js:1282:11

This was fixed by doing

brew link automake
brew install --HEAD watchman

facebook/react-native#910

Other people might have this problem aswell. If we don't plan on fixing it atm we should at least include the fix in the README.

[liviuignat]

I don't have this problem, but I installed yarn with npm install yarn -g and I think this is not the recommended way anymore.

[RaulTsc]

I also installed it globally, I don't think that's the problem though. The reporter in the RN issue is using npm. I think watchman might be a dependency of jest and it gets screwed up somehow.