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• Search for existing issues: https://github.com/facebook/react-native/issues
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Environment

React Native Environment Info:
System:
OS: macOS 10.14.2
CPU: x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
Memory: 99.84 MB / 8.00 GB
Shell: 5.3 - /bin/zsh
Binaries:
Node: 11.1.0 - ~/.nvm/versions/node/v11.1.0/bin/node
Yarn: 1.12.3 - /usr/local/bin/yarn
npm: 6.4.1 - ~/.nvm/versions/node/v11.1.0/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 12.0, macOS 10.14, tvOS 12.0, watchOS 5.0
Android SDK:
Build Tools: 22.0.1, 23.0.1, 25.0.0, 25.0.2, 26.0.0, 26.0.2
API Levels: 19, 21, 23, 24, 25, 26
IDEs:
Android Studio: 3.1 AI-173.4720617
Xcode: 10.0/10A255 - /usr/bin/xcodebuild
npmPackages:
react: 16.5.0 => 16.5.0
react-native: 0.57.2 => 0.57.2
npmGlobalPackages:
react-native-cli: 2.0.1

Description

I have some helper modules that live inside __tests__ directory which are also exported. Here is my directory structure. There are two packages A and B. I am exporting fileA from A's __tests__ directory and trying to use it inside B.

A
├── dist
├── node_modules
├── src
│   ├── __tests__
│   │   ├── __helpers__
│   │   │   ├── fileA.ts
│   │   └── integration.test.ts

B
├── dist
├── node_modules
├── src
│   ├── __tests__
│   │   └── integration.test.ts

But it does not resolve the module and throws following error:

Loading dependency graph, done.
error: bundling failed: Error: Unable to resolve module `./__tests__/__helpers__/fileA` from 
`/Users/xyz/project/packages/A/dist/index.js`: 
The module `./__tests__/__helpers__/fileA` could not be found from `/Users/xyz/project/packages/A/dist/index.js`. Indeed, none of these files exist:

* `/Users/xyz/project/packages/A/dist/__tests__/__helpers__/fileA(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json|.ios.ts|.native.ts|.ts|.ios.tsx|.native.tsx|.tsx)`
* `/Users/xyz/project/packages/A/dist/__tests__/__helpers__/fileA/index(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json|.ios.ts|.native.ts|.ts|.ios.tsx|.native.tsx|.tsx)`

But files do exists.

Reproducible Demo

--

Things I tried

• I tried cleaning the yarn and metro bundler's cache
• removed node_modules, cleared watchman's state