Example with failing jest tests on base react native 0.57.4 project created with react-native init
Created as an example to RN issue react/react-native#22175
npm install
To run broken tests npm run test:broken
To run working tests npm run test:working
These broken examples replicate existing code we have in a production react native app upgrading from RN 0.55.4 to 0.57.4. Syntactically there are no issues and the code gets transpiled correctly by the metro bundler. However it is failing on jest using the react native jest preprocessor.