Files are not transformed when there is nested `package.json` file

[latata]

🐛 Bug Report

Let's say I have second package.json file in the director my-package. When I run tests using jest from the project root directory the files within my-package dir are not transformed.

Error message:

 Jest encountered an unexpected token

    This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.

    By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".

    Here's what you can do:
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/en/configuration.html

To Reproduce

Steps to reproduce the behavior:

1. create new directory within your project
2. create new package.json files in the created dir
3. create test file using ES6 imports
4. run tests from the root dir
5. error Jest encountered an unexpected token

Expected behavior

Files within directories containing another package.json file should be transformed.

envinfo

  System:
    OS: macOS Mojave 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-8569U CPU @ 2.80GHz
  Binaries:
    Node: 12.16.1 - ~/.nvm/versions/node/v12.16.1/bin/node
    Yarn: 1.19.1 - /usr/local/bin/yarn
    npm: 6.13.4 - ~/.nvm/versions/node/v12.16.1/bin/npm
  npmPackages:
    jest: ^24.8.0 => 24.8.0 

[masmatsum]

I got similar error and created a new issue with reproduction detail (ex. link to repo). Please see https://github.com/facebook/jest/issues/10647

[masmatsum]

@latata I found the solution for my own case. If you are using .babelrc.js, https://github.com/facebook/jest/issues/10647#issuecomment-747794046 may help you.

[felipenmoura]

funny ... renaming a file to fix such an issue worked surprisingly well, as mentioned in https://github.com/facebook/jest/issues/9996#issuecomment-747795051 Thanks :)

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