testPathDirs does not work with React Native, but testRegex does

[milesj]

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

Bug.

What is the current behavior?

I'm trying to add RN support to my Aesthetic project, but am running into a few issues. I have updated my jest.json with "preset": "react-native", which works, but it seems like "testPathDirs": ["./tests"], does not work as it throws these errors:

 FAIL  tests/createStyler.test.js
  ● Test suite failed to run

    Cannot find module 'setupDevtools' from 'setup.js'
      
      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:151:17)
      at Object.<anonymous> (node_modules/react-native/jest/setup.js:23:1)

If I replace testPathDirs with "testRegex": "./tests/.*\\.test\\.js$",, the tests now run. I've tried all the examples I've seen to "fix this", but nothing has worked. Using a regex pattern seems hacky.

PR here: https://github.com/milesj/aesthetic/pull/4/files

What is the expected behavior?

Tests run using testPathDirs.

[cpojer]

Don't use testPathDirs for this, it actually means "roots". We should eventually rename this option.

[milesj]

Is using testRegex going to be the standard way? Or should it be a combination of both options?

[cpojer]

testRegex for now, yes. We will also add a glob option soon. #2359

[github-actions]

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