how can I add source-map support?

[bchenSyd]

I'm using jest with babel and i want to debug my test.
I'm able to debug jest with node --debug-brk ./node_modules/.bin/jest --runInBand [any other arguments here] but lose all es6 source code info.
I know source-map-support is a babel feature not jest's, but jest should somehow tell babel to include source-map-support.

so far I've tried

1.  config `transform`
 "transform": {
      ".*": "<rootDir>/scripts/jest/preprocessor.js"
    }

2. in my preprocess.js file I have
const register=require("babel-register")
register()

...

module.exports = {
  process: function(src, filename) {
    const options = assign({}, babelOptions, {
      filename: filename,
      retainLines: true,
     sourceMap:true,    // I added this line
    });
    return babel.transform(src, options).code;
  },

but this doesn't work. any ideas?

[cpojer]

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[bchenSyd]

@cpojer I finally get it to work. will create a PR for jest

[github-actions]

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