Don't throw if we can't find package.json

[samertm]

Don't throw if we can't find the package.json file for Jest, because it's possible to run jest without having a package.json at all.

[palmerj3]

@samertm thanks for the PR! Could you tell me a situation where JS app with jest tests wouldn't have a package.json?

[samertm]

If you run jest with Bazel, it'll create a separate directory tree which mirrors your repo but is separate from it to run your test.

So if your git repo is ~/src/myrepo and your tests are in ~/src/myrepo/tests, it'll create a directory like ~/.cache/bazel/.../bin/tests/jest.runfiles/... with all of the files you need to run the test and it'll set the working directory to jest.runfiles.

I'll admit that it's a rare usecase, but Bazel is our main build system at Dropbox and we need this patch to get your plugin to work :P

[palmerj3]

@samertm good answer :) We are investigating bazel at Spotify as well so this is a much welcome change. I'll merge and push 3.4.0 in the next few min.

Thanks!!

[samertm]

Thanks so much!

We just recently moved to Bazel for everything at Dropbox and I worked on integrating our static build system with Bazel. Feel free to drop me a line (my email is my first name @dropbox.com) if you think we can help :)

[palmerj3]

Very cool! I might actually take you up on that.

[palmerj3]

3.4.0 is published and available