React native 0.57

[khrizt]

Description

This is not an issue is just a comment, I'm using detox v9 with version 0.57 of react-native and everything I'm using works correctly. There's just one thing that I needed to change. The mocking react-native config needs to be changed as this react-native version includes a metro-bundler version bump. The only way to achieve the same effect as the previous version of rn-cli.config.js is this one:

const { getDefaultConfig } = require('metro-config');

const additionalExts = process.env.RN_SRC_EXT ? process.env.RN_SRC_EXT.split(',') : [];

module.exports = (async () => {
  const {
    resolver: { sourceExts },
  } = await getDefaultConfig();

  return {
    resolver: {
      sourceExts: [...additionalExts, ...sourceExts],
    },
  };
})();

In this new version of metro-bundler you need to specify all the extensions you want to use so you need to get the default extensions and add your own.

I think I got it all correct, and I'm open to testing additional things if needed.

Steps to Reproduce

Use detox v9 with react-native 0.57

Detox, Node, Device, Xcode and macOS Versions

• Detox: 9.0.5
• React Native: 0.57.2
• Node: 10
• Device: android && ios
• Xcode: 10

[LeoNatan]

Hello, thank you for posting.

There is a PR that updates documentation with these instructions. We haven’t had time to test it yet, which is why it is open still.