Jest mistake with meteor-react-data

help
1

Does anybody face the mistake with Jest: “Could not locate module meteor/react-meteor-data” ?

How it can be fixed?
What should I use at jest.config.js?
Thanks!

2 
// jest.config.js

module.exports = {
  moduleNameMapper: {
    '^meteor/(.*)': '<rootDir>/mocks/meteor/$1'
  }
}

This basically tells jest to look for imports starting with meteor/ in the mocks/meteor file (the default is node_modules).

So in your case it will look for a file named react-meteor-data

// mocks/meteor/react-meteor-data.js

import React, { Component } from 'react'

export const withTracker = (options) => {
  let options_ = options
  if (typeof options === 'function') {
    options_ = options()
  }

  return (WrappedComponent) => (
    class ReactMeteorData extends Component {
      render () {
        return <WrappedComponent {...options_} />
      }
    }
  )
}

I assume that you don’t run jest in the context of meteor so you only need the withTracker function to pass props (by entering an object/function as parameter) to your component and return it.

Ask anything if it doesn’t make any sense to you