jest-expo failed testing createCacheKeyFunction

Summary

Hi, I’m having trouble updating to SDK 42 to run unit tests. I am having this error with jest-expo

Cannot find module 'fbjs-scripts/jest/createCacheKeyFunction'
    Require stack:
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\jest-expo\src\preset\assetFileTransformer.js
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\@jest\transform\build\ScriptTransformer.js
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\@jest\transform\build\index.js
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\jest-runtime\build\index.js
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\jest-runner\build\testWorker.js
    - C:\Users\jocab\WorkSpaceElenas\elenas\app\node_modules\jest-worker\build\workers\processChild.js

    Require stack:
      node_modules/jest-expo/src/preset/assetFileTransformer.js
      node_modules/@jest/transform/build/ScriptTransformer.js
      node_modules/@jest/transform/build/index.js
      node_modules/jest-runtime/build/index.js
      node_modules/jest-runner/build/testWorker.js
      node_modules/jest-worker/build/workers/processChild.js

Managed or bare workflow? If you have ios/ or android/ directories in your project, the answer is bare!

bare

What platform(s) does this occur on?

Android

SDK Version (managed workflow only)

42

Environment

Expo CLI 4.9.1 environment info: System: OS: Windows 10 10.0.19043 Binaries: Node: 14.17.3 - C:\Users\jocab\AppData\Local\Temp\yarn–1627936221009-0.16358276054367216\node.CMD Yarn: 1.22.4 - C:\Users\jocab\AppData\Local\Temp\yarn–1627936221009-0.16358276054367216\yarn.CMD npm: 6.14.13 - C:\Program Files\nodejs\npm.CMD Watchman: 20200424.164118.0 - C:\Users\jocab\watchman\windows\bin\watchman.EXE SDKs: Android SDK: API Levels: 23, 28, 29, 30 Build Tools: 28.0.3, 29.0.2, 29.0.3, 30.0.2, 30.0.3 System Images: android-23 | Google APIs Intel x86 Atom, android-29 | Google APIs Intel x86 Atom IDEs: Android Studio: Version 4.2.0.0 AI-202.7660.26.42.7351085 npmPackages: expo: ^42.0.0 => 42.0.0 react: 17.0.1 => 17.0.1 react-dom: 17.0.1 => 17.0.1 react-native: 0.64.2 => 0.64.2 react-native-web: ~0.13.12 => 0.13.18 Expo Workflow: bare

Reproducible demo or steps to reproduce from a blank project

N/A

[crcass]

I was able to get around this issue by adding fbjs-scripts under devDependencies in my package.json

npm i fbjs-scripts --save-dev or yarn add fbjs-scripts --dev

I also needed to add @jest/create-cache-key-function under resolutions in my package.json per a reply to this issue

[byCedric]

This issue happens if you are using a newer React Native version, e.g. 0.64.2. In this React Native version, fbjs-scripts is removed. We will fix this when we upgrade our internal React Native version to 0.64.x. For now, the best workaround would be to use @crcass’s workaround.